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1 Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific Research Research Unit Chair Dr. Emad AlShwaimi Members Prof. Khalid Almas Dr. Neveen Mokhtar Dr. Abdul Samad Khan Dr. Abdul Majeed Dr. Faris AlShahrani Dr. Hatem Abouhashish Dr. Imran Farooq Initiative of the Research Unit of College of Dentistry, Imam AbdulRahman Bin Faisal University

Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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Page 1: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

1

Research Bulletin

Vol 4, Issue 1 (Jan-Mar 2017)

Vice Deanship of Postgraduate Studies and

Scientific Research

Research Unit

Chair

Dr. Emad AlShwaimi

Members

Prof. Khalid Almas

Dr. Neveen Mokhtar

Dr. Abdul Samad Khan

Dr. Abdul Majeed

Dr. Faris AlShahrani

Dr. Hatem Abouhashish

Dr. Imran Farooq

Initiative of the Research Unit of College

of Dentistry, Imam AbdulRahman Bin

Faisal University

Page 2: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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WHAT’S INSIDE

THIS ISSUE?

Experts corner ..……………...………………………......3

Research News………………………………………………4

Faculty publications……...………………………………….6

In Press publications…..…...……………………………….11

On going faculty research projects.…..…….…….…….13

On going interns research projects.…..………..….…….14

On going student research projects.…..…………….…….14

Contact information…………………….…………………………14

Page 3: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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Corner

Micro-Computed Tomography in Dental Research By

Dr. Abdul Majeed

BDS, PDD (Aesthetic Dentistry), PDD (Implantology), MSc, PhD Assistant Professor, Division of Endodontics, Dept. of Restorative Dental Sciences,

College of Dentistry, Imam AbdulRahman Bin Faisal University

Micro-computed tomography or micro-CT is the non-destructive x-ray imaging of objects which provides a three-

dimensional (3D) view. The working principle is same as the one utilized in hospital CT scans, but on a very small scale. Many companies have even developed nano-CT with submicron spatial resolution. Micro-CT also known as high resolution imaging, does not require preparation of specimens, staining, or slicing. Recently micro-CT has become an integral part of research laboratories in academia as well as in commercial industries.

Micro-CT allows scanning of objects rotated through multiple directions (up to 360° rotation) using microfocal spot X-ray sources and high resolution detectors. Imaging softwares developed along with micro-CT provide 3D reconstruction of images and analyses at different levels. A major advantage of micro-CT is its non-destructive process. Once a specimen is scanned, internal features can be analyzed immediately as many times as needed and the specimen is still available for further testing and analyses. In dental research, micro-CT has gained popularity in recent years and a wide range of specimens such as teeth, bone, biomaterial scaffolds, dental materials (ceramics, polymers etc.), in-vivo small animals can be examined.

This paragraph gives a brief overview of the possible applications of micro-CT in dental research. This is neither an exhaustive list nor the limitations to applications of micro-CT. 1) Using micro-CT it is possible to determine the mineral concentration in enamel and dentin of deciduous and permanent teeth. It can be utilized in de- and remineralization studies of enamel. It is possible to calculate lost and regained amount of mineral content. 2) In endodontics, micro-CT can be used to examine the inner structures of teeth; perform qualitative and quantitative analyses of pulp cavities and root canal morphologies; evaluate root canal preparations and root fillings etc. 3) Using micro-CT a much more precise finite element model (FEM) of teeth and bones can be developed. This 3D model can be used to determine the influence of different techniques of cavity preparation, endodontic access and restorations on the stress distribution in teeth and supporting structures in restorative dentistry. 4) Micro-CT has proven to an extremely useful tool in tissue engineering particularly in the study of scaffolds and bone. It can be used for the characterization of scaffolds and in vitro evaluation of degradation and bone growth. Even the ability of bone substitute materials or different osteogenic cells can be compared in live animal models such as mouse. Non-destructive nature of micro-CT scanning process and absence of specimen preparation step, enables scanning of live animal at different time intervals to evaluate the bone healing or repair. 5) Micro-CT enables precise measurement of trabecular and cortical bone and this can be used to analyze the osseointegration in implant dentistry. Micro-CT can provide qualitative and quantitative measurement of bone integration at the implant surface up to few microns.

Research laboratory of the College of Dentistry has state of the art Micro-CT scanner. A number of research projects are currently running and most of them are related to a particular area of dentistry. Given the quality of the micro-CT scanner and its endless potential, other fields of dentistry should develop collaborative research projects and avail this opportunity to its maximum.

Page 4: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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Research News

1. Best Researcher Award

We would like to congratulate Dr. Imran Farooq

for receiving “Best Researcher Award” for the

year 2015. The result of this competitive annual

award was announced during the College of

Dentistry achievement ceremony in January

2017. Currently, Dr. Imran Farooq has 30+ peer

reviewed publications with 100+ citations.

2. Student Participation in

AEEDC, Dubai

We would like to congratulate Zainah Salloot who

presented her research in AEEDC, Dubai in Feb

2017. The title of her research was “Sealent

Prevalence and Associated Factors Among

Schoolchildren, Eastern Provice, Saudi Arabia”.

3. Research Seminar Series

This quarter, the Vice Deanship for Postgraduate Studies and Research at the College of Dentistry organized

the Research Seminar for faculty members on 7th March 2017. The seminar was attended by large number of

faculty members at the college. Topics of the presented researches were 1) Thermo-chemical analysis for the

effect of heat on epoxy resin- and calcium silicate based endodontic sealers (Dr. Amre Atmeh) 2) Effect of

Nanodiamond Addition on Flexural Strength, Impact Strength and Surface Roughness of PMMA Denture

Base (Dr. Shaimaa Fouda)

Dr. Amre Atmeh Dr. Shaimaa Fouda

Page 5: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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4. Student participation in SDS, Riyadh

We would like to congratulate all the students who represented College of Dentistry, Imam AbdulRahman

Bin Faisal University in Saudi Dental Scoeity Conference, Riyadh.

#

Presenter(s)

Author/Coauthors Title

1. Maryam Buholayka,

Eman Al-Kaaba

Dr. Neveen M. Ayad, Prof.

Hala A. Bhagat

Food-Simulating Organic Solvents for

Evaluating Crosslink Density of Bulk-fill

Composites

2. Hassan AlDabbus

Dr.Abdul Majeed

Ahmed Al-Madih

Abdulaziz Al-Ali

Solubility of Different Endodontic

Sealers in Different Organic Solvents

3. Manar Al-Zamil

Dalal Al-Mazroua

Dr. Faisal AlOnaizan

Dr. M. Olyani

Prof. Khalid Almas

Medical conditions, oral hygiene practices

of patients in Eastern province

4. Dalal AlMazroua

Manar alzamil

Dr. Steph smith

Dr. Emad AlShwaimi

Prof. Khalid Almas

CBCT study at a teaching hospital in the

Eastern Province

5. Thamir AlHoutan Prof. Khalid Almas Dental implant practices in the Eastern

Province of Saudi Arabia

6. Abdullah Almulhim

Ali Alshammari

Abdulmohsen Alessa

Dr. Maha Tantawi

Association between soft drinks and

dental caries in male adolescent in Saudi

Arabia

7. Zainah Salloot Dr. Maha El Tantawi, Dr.

Jehan Alhumaid

Sealant Prevalence and Associated Factors

Among Schoolchildren, Eastern Province,

Saudi Arabia

8. Hoda albaqawi,

Sadeem alzaghran

Lama almuhanna

Abdulaziz almutair

Abdulrahman alhumaidan

Rakan alharbi

Prof. Almas

Oral malodor and hyegeine habits among

dental students of UodCod

9. Sarah Fita,

Lina Alzahrani

Sarah Fita,

Lina Alzahrani, Dr.Maha

El-Tantawi, Dr.Jehan

AlHumaid

Caries in schoolchildren: cross sectional

comparative study, Eastern Province,

Saudi Arabia

10. Ahmed Al-Madih

Dr. Khalifa Al-Khalifa,

Hassan Al-Dabbus, Habeeb

AlAqeeli, Sharaf

AlZaidani, Abdulaziz

Almarshoud, Dr. Essam

Nassar

Prevalence of Malocclusion Among

Children and Parent’s Awareness Towards

Malocclusion in Dammam

Page 6: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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1. Alkaabi W, AlShwaimi E, Farooq I, Goodis HE, Chogle SM. A Micro-Computed Tomography Study of the Root

Canal Morphology of Mandibular First Premolars in an Emirati Population. Med Princ Pract. 2017;26(2):118-124.

Indexing Status: Scopus: Web of Science: PubMed:

Abstract

OBJECTIVE: To investigate variations in the root canal morphology of mandibular first premolars in a population

from the United Arab Emirates using micro-computed tomography (micro-CT) and conventional radiography.

MATERIALS AND METHODS: Three-dimensional images of 50 extracted human mandibular first premolars were

produced using a micro-CT scanner, and conventional radiography was also used to record the number of roots,

the root canal system configuration, the presence of a C-shaped canal system and lateral canals, intercanal

communications, and the number and location of apical foramina. The interpretations of micro-CT and

conventional radiography were statistically analyzed using Fisher's exact test. RESULTS: Variable root canal

configurations based on Vertucci's classification were observed in the teeth (i.e., types I, III, IV, V, and VII). The

examined teeth exhibited the following 2 additional root canal configurations, which did not fit Vertucci's

classification: type 1-2-3 and type 1-3. A C-shaped canal configuration was present in 14 (28%) cases, and lateral

canals were present in 22 (44%) cases. Apical deltas were found in 25 (50%) cases, intercanal communications

were seen in 6 (12%) cases, and apical loops were seen in 2 (4%) of the samples. Micro-CT and X-ray imaging

identified 39 (78%) and 34 (68%) apical foramina, respectively. A single apical foramen was detected in 33 (66%)

samples, and 2 or 3 apical foramina were detected in 14 (28 %) and 3 (6%) samples, respectively. In 18.5 (37%)

samples the apical foramina were located centrally, and in 31 (62%) they were located laterally. CONCLUSION: A complex morphology of the mandibular first premolars was observed with a high prevalence of multiple root canal

systems.

2. Ahmed S Ashour. A proposed curriculum of Professionalism and ethics for Egyptian undergraduate medical

students. International Journal of Advanced Education and Research 2017;2(2):14-16.

Indexing Status: Scopus: Web of Science: PubMed:

Absrtact

Professionalism is a belief system about perfection in health care delivery while ethics is the study of moral

decisions and behaviours. In hidden curriculum, students learn by watching their instructors, but it leaves a lot to

chance to grasp essence of professionalism and ethics. This curriculum is introduced to empower hidden

curriculum and to develop a professionally sound graduate. The curriculum is divided into preclinical phase and

clinical phase. Interactive lectures, case-based learning, self-directed learning and video cases/clips are going to be

used in curriculum delivery. Various assessment methods will be used, either formative/internal assessment or

summative assessment. With the course content, objectives, competencies, teaching learning tools and assessment

tools having been outlined in this document, it is presumed that medical colleges in Egypt under the guidance of

the regulatory body will find it much easier to introduce and implement professionalism and ethics module in

declared curriculum, and we will encounter more professional physicians who are ethically strong.

3. Ahmed S Ashour. Vivid look at anatomy practical lessons, end of debate! International Journal of Advanced

Education and Research 2017;2(2):11-13.

Indexing Status: Scopus: Web of Science: PubMed:

RECENT FACULTY PUBLICATIONS

Page 7: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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Abstract

Macroscopic anatomy (gross anatomy) is the examination of human body parts merely using eyesight. Several methods were developed to deliver the scientific facts to healthcare students. Dissection of cadaver is one of the oldest methods. But due to lack of resources, previously prepared (dissected) cadaveric parts are delivered to the students during practical lessons, which are called prosection. In last few years, an innovative method emerges, which is now widely used in universities, i.e. virtual anatomy. The current debates about the use of cadaveric dissection and prosection versus the use of virtual anatomy software is the initiative to write this article. The author hopes that, at the end of reading, the reader come to a definite conclusion about the using virtual anatomy in teaching. 4. El Tantawi M, Bakhurji E, Al-Ansari A, Al-Khalifa KS, AlSubaie A. Influences of parents, close friends and classmates on four co-existing oral health practices in Saudi male teenagers. Acta Odontol Scand. 2017;75(2):137-143. Indexing Status: Scopus: Web of Science: PubMed:

Abstract OBJECTIVE: The objective of this study is to investigate the association between oral health practices and similar practices adopted by parents, close friends and classmates in a group of Saudi male teenagers. MATERIAL AND METHODS: A cross-sectional study was conducted in Dammam, Saudi Arabia, in 2016 including 12-14-year-old intermediate school students (n = 478). A questionnaire assessed socioeconomic background, whether participants, their parents, close friends and classmates brushed twice daily, used tobacco, snacked on sugary foods or sugary drinks and perceiving a supportive classroom environment. Univariate and multivariate logistic regression models assessed the association of parents', close friends', classmates' practices and classroom support with participants' four practices, controlling for socioeconomic factors. RESULTS: The response rate was 93.9%. In multivariate regression, close friends' practices had a strong significant association with teenagers' tooth brushing (OR = 4.45; 95%CI = 1.09, 18.12), tobacco use (OR = 5.63; 95%CI = 3.44, 7.88), snacking on sugary foods (OR = 14.42; 95%CI = 7.89, 21.89) and sugary drinks (OR = 7.05; 95%CI = 5.97, 9.20). The percentages of classmates perceived to brush their teeth and use tobacco were significantly associated with the respective practices in teenagers (OR = 1.03 and 1.02). Fathers' snacking on sugary drinks was significantly associated with that of the teenagers (OR = 4.04; 95%CI= 1.03, 15.85). CONCLUSIONS: In early adolescence, four oral health practices of Saudi males were associated with those perceived to be adopted by their close friends. Fathers' use of sugary drinks was also significantly associated with that of teenagers. 5. Majeed A, AlShwaimi E. Push-Out Bond Strength and Surface Microhardness of Calcium Silicate-Based

Biomaterials: An in vitro Study. Med Princ Pract. 2017;26(2):139-145.

Indexing Status: Scopus Web of Science: PubMed:

Abstract

OBJECTIVE: This was an in vitro evaluation of push-out bond strength and surface microhardness of calcium silicate-

based biomaterials in coronal and apical root dentin. MATERIALS AND METHODS: Ninety sections (2 mm thick) of

coronal and apical root dentin were obtained from roots of 60 extracted teeth; the canals were enlarged to a

standardized cavity diameter of 1.3 mm. Sections were randomly divided into 6 groups (n = 15 per group), and cavities

were filled with Biodentine™, BioAggregate, or ProRoot mineral trioxide aggregate (MTA), according to the manufacturers' instructions. Push-out bond strength values were measured using a universal testing machine under a

compressive load at a speed of 1 mm/min. Samples were analyzed under a light microscope to determine the nature of

bond failure. Ten samples (2 mm thick) were prepared for all the materials, and Vickers microhardness was determined using a digital hardness tester. Data were analyzed using one-way analysis of variance and Tukey-Kramer multiple

comparison tests at a significance level of p < 0.05. RESULTS: Biodentine (42.02; 39.35 MPa) and ProRoot MTA (21.86;

34.13 MPa) showed significantly higher bond strengths than BioAggregate (6.63; 10.09 MPa) in coronal and apical root

dentin, respectively (p < 0.05). Biodentine also differed significantly from ProRoot MTA in coronal dentin. Bond failure

was predominantly adhesive in Biodentine and ProRoot MTA, while BioAggregate showed predominantly mixed failure.

ProRoot MTA (158.52 HV) showed significantly higher microhardness and BioAggregate (68.79 HV) showed the lowest

hardness. CONCLUSION: Biodentine and ProRoot MTA showed higher bond strength and microhardness compared to

BioAggregate.

Page 8: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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5. Al-Thobity AM, Farooq I, Khan SQ. Effect of software facilitated teaching on final grades of dental students in a dental morphology course. Saudi Med J. 2017;38(2):192-195. Indexing Status: Scopus: Web of Science: PubMed: Abstract

OBJECTIVES: To evaluate differences in students' performance in a dental morphology course after the

introduction of a 3D software-teaching program. Methods: This retrospective study took place at the College of

Dentistry, University of Dammam, Dammam, Kingdom of Saudi Arabia, from August 2013 to January 2016. The

study included 3 groups of students taking the course during 3 different academic years: group 1, 2013-14 control;

group 2, 2014-2015; and group 3, 2015-2016. The total sample size was 294 (n = 294; group 1 = 94; group 2 = 100;

and group 3 = 100). Group 1 =students did not receive teaching facilitated by a software program, but groups 2 and

3 students were provided with the program's CDs. The final examination grades of the students were statistically

analyzed, retrospectively. Results: The results demonstrated that the students who received software-facilitated teaching (groups 2 and 3) performed better than the students who did not receive it (group 1). Within the same

year for groups 2 and 3, the number of students achieving good grades (greater than 80%) was significantly higher

than the students who achieved average grades (less than 79%), with p-values of 0.012 for group 2 and 0.009 for

group 3. Conclusion: There is a positive correlation between the use of a teaching software program for students

and their performance in final examinations. The addition of computer-based learning, as one of the teaching

methods, could demonstrably boost students' learning.

6. Haji IU, Sodhi SP, Al-Jandan B, Jaber M. Guerin sign in midfacial fractures. Br J Oral Maxillofac Surg.

2017;55(2):185-186.

Indexing Status: Scopus: Web of Science: PubMed:

Abstract

We report a patient with multiple fractures of the midface and Guerin sign bilaterally after maxillofacial trauma. To

the best of our knowledge, this is the first time that this rare presentation of Guerin sign has been published.

7. Bahammam MA, Kayal RA, Alasmari DS, Attia MS, Bahammam LA, Hassan MH, Alzoman HA, Almas K, Steffens JP.

Comparison Between Dexamethasone and Ibuprofen for Postoperative Pain Prevention and Control After Surgical

Implant Placement: A Double-Masked, Parallel-Group, Placebo-Controlled Randomized Clinical Trial. J Periodontol.

2017;88(1):69-77.

Indexing Status: Scopus: Web of Science: PubMed:

Abstract

BACKGROUND: Postoperative pain is a potential adverse side effect of oral surgeries, and attempts should be

made to prevent or minimize it. This study compares efficacy of preemptive ibuprofen and dexamethasone

protocols for pain prevention or control after surgical implant placement. METHODS: This prospective, double-

masked, parallel-group, placebo-controlled, randomized clinical trial included 117 patients with planned dental

implant placement. Patients were assigned to receive one of three different protocols: 1) 600 mg ibuprofen 1 hour

before surgery and another 600 mg 6 hours after the first dose; 2) 4 mg dexamethasone 1 hour before surgery and another 4 mg 6 hours after the first dose; or 3) placebo. Rescue medication (1,000 mg acetaminophen) was made

available to each patient, and they were instructed to take it as necessary. Pain intensity was evaluated via a 101-

point numeric rating scale and a visual analog scale, and discomfort was evaluated using a four-point verbal rating

scale hourly for the first 8 hours after surgery and three times daily for the following 3 days. RESULTS: Ibuprofen

and dexamethasone significantly reduced pain (Kruskal-Wallis; P <0.05) up to 3 days after surgery and discomfort

(P <0.05) up to 2 days after surgery compared with placebo treatment. Both treatments reduced the number of

painkillers taken and increased time before the first painkiller was taken (P <0.01). CONCLUSION: Steroidal

dexamethasone is as effective as non-steroidal ibuprofen for preventing or controlling postoperative pain and

afaaa

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discomfort after surgical implant placement.

8. Al-Mahalawy H, Al-Aithan H, Al-Kari B, Al-Jandan B, Shujaat S. Determination of the position of mental foramen

and frequency of anterior loop in Saudi population. A retrospective CBCT study. Saudi Dent J. 2017;29(1):29-35.

Indexing Status: Scopus: Web of Science: PubMed:

Abstract

OBJECTIVES: To determine the position of mental foramen (MF) and frequency of anterior loop (AL) using dental

cone beam computed tomography (CBCT). MATERIALS AND METHODS: The study involved the evaluation of 302

CBCT scans (196 males, 106 females). The position of MF was determined with respect to adjacent teeth, nearest

root apex of adjacent teeth and mandibular borders. MF position was also assessed based on gender and age. In

addition, prevalence of anterior loop was evaluated by categorizing the inferior alveolar canal (IAC) patterns into

linear, perpendicular and anterior looping. RESULTS: The study revealed that the most common position of MF

was below the apex of 2nd premolar accounting for a total of 52.8% of scans whereas, only 29.6% observed MF

between 1st and 2nd premolar (p > 0.05). 38.7% of MF were located at a distance of 1-3 mm from the nearest root

apex (2nd premolar), followed by a distance of less than 1 mm in 17.05 of cases. 63.2% of foramen on left side of

the mandible were observed below the apex of 2nd premolar in females (p = 0.023). Statistically significant

findings were observed with regards to position of MF in different age groups (p < 0.05). The most common IAC

pattern observed was linear in nature which accounted for 46.2% of cases followed by perpendicular pattern

(38.6%). AL was found only in 15.2% of cases. CONCLUSIONS: Our sample population most commonly exhibited

MF below the apex of 2nd premolar with linear IAC pattern. AL was regarded as the least common pattern in Saudi

population.

9. Alnassar T, Vohra F, Abunalsaud H, Al-Thobity AM, Flinton RJ. Efficacy of Novel Cleansing Agent for the

Decontamination of Lithium Disilicate Ceramics- A Shear Bond Strength Study. J Adhes Sci Technol. 2017;31(2):

202-210.

Indexing Status: Scopus: Web of Science: PubMed:

Abstract

Purpose: To investigate the efficacy of Ivoclean as a ceramic cleansing agent, by assessing shear bond strength of

pre-etched lithium disilicate (LD) ceramic to resin cement. Materials and Methods: Seventy LD discs (10 × 10 × 4

mm) were fabricated and etched using 5% hydrofluoric acid (HF) for 20 s. Ten specimens were not exposed to

saliva and silicone disclosing medium (negative control). The other 60 specimens, divided into six groups (n = 10),

were exposed to saliva for 20 s and silicone disclosing medium for 3 min. Following contamination, 10 specimens

were not cleansed (positive control). The remaining five groups were exposed to one of the five different cleansing

agents: 96% isopropanol, 37% phosphoric acid-30 s, 5% HF acid- 20 s, 5% HF acid- 120 s, and Ivoclean paste-20 s.

All specimens were treated with primer and bonded to a self-curing resin cement. Before shear bond strength

testing, all specimens were thermocycled (3000 cycles; 5–55°). Results: Contamination of pre-etched LD ceramic

specimens significantly reduced the shear bond strength values from 22.39 ± 0.38 MPa (negative control) to 6.54 ±

0.90 MPa (positive control) (p < 0.05). Cleansing of contaminated ceramic specimens with 5% HF acid [20 s (19.28

± 1.06 MPa) and 120 s (20.04 ± 1.09 MPa)] and Ivoclean (18.30 ± 0.97) provided significantly higher bond strength

values than other cleansing methods with 37% phosphoric acid and 96% isopropanol (p < 0.05). Conclusion:

Ivoclean and 5% HF acid were found to be effective in cleansing of LD ceramic surface by demonstrating maximum

increase in shear bond strength values as compared to contaminated LD ceramics.

10. Alyousef YM, Borgio JF, AbdulAzeez S, Al-Masoud N, Al-Ali AA, Al-Shwaimi E, Al-Ali AK. Association

of MBL2 Gene Polymorphism with Dental Caries in Saudi Children. Caries Res. 2017;51(1):12-16.

Indexing Status: Scopus: Web of Science: PubMed:

Page 10: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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Abstract

The high prevalence of dental caries in children worldwide is a major oral health problem which requires

early intervention. Dental caries is mainly caused by the action of acids produced by bacteria in addition

to many other factors. Recent genetic studies have reported that a number of genes are associated with

the susceptibility to dental caries. The majority of these genes are associated with inflammation,

increased susceptibility to infection, and dentine matrix formation. Using the TaqMan assay and direct

DNA sequencing, the prevalence of 6 single-nucleotide polymorphisms (SNPs) in MMP9, MBL2, MMP2,

and TIMP2 genes was determined in 102 children with caries and in 100 age-matched caries-free

controls. Out of the 6 SNPs tested in the 4 selected genes, only rs11003125 in the MBL2 gene was shown

to be associated with a high prevalence of caries in our cohort. In addition, haplotype analysis of the 6

SNPs tested revealed that certain haplotypes, namely GT of rs11003125G and rs7501477T and GT of

rs7096206G and rs7501477T, were found to be associated with a high prevalence of dental caries in our

cohort, while haplotype AG of rs17576A and rs7501477G was found to have a protective effect

against dental caries. In conclusion, the data indicate that rs11003125 in the MBL2 gene was shown to be

associated with a high prevalence of caries in our cohort, and 2 haplotypes are also involved in the

increased susceptibility to dental caries.

11. Mohammed MG. Evolution of Denture Repair and a Review of New Era. Open Access Journal of

Dental Sciences 2017;2(2):000125.

Indexing Status: Scopus: Web of Science: PubMed:

Abstract

Mini review. No Abstract available.

12. Nazir MA, Almas K. Awareness about the effects of tobacco consumption on oral health and the

possibility of smoking behavior among male Saudi schoolchildren. Eur J Dent. 2017;11(1):29-35.

Indexing Status: Scopus: Web of Science: PubMed:

Abstract

Objective: To investigate an association between the awareness about the effects of tobacco consumption on oral

health and the likelihood of smoking among male schoolchildren. Materials and Methods: A cross sectional study

was conducted using a multistage random sampling technique. The participants (ages 15–19 years) were recruited

from male public high schools in Greater Dammam in Saudi Arabia. A pretested questionnaire inquired

participants' awareness about the effects of smoking on oral health. SPSS (Released 2013, IBM SPSS Statistics for

Windows, Version 22.0. Armonk, NY: IBM Corp) was used to calculate unadjusted and adjusted odds ratio (OR) and

95% confidence interval (CI). Multiple logistic regression and interaction analyses were performed to identify the

factors associated with the probability of smoking behavior among children. Results: More than 69.9% (n = 277) of

participants were aware of the adverse effects of tobacco consumption on oral health which included poor oral

health, bad taste and breath, periodontal disease, dental caries, oral ulcers, and oral cancers. The odds of smoking

were 22%–47% lower among schoolchildren who were aware of the consequences of smoking on oral health than

those who were unaware of these complications. The students who believed that smoking can cause oral ulcers and

negatively affects oral health had a lower probability of smoking (OR: 0.414; CI: 0.201–0.50) and (OR: 0.433; CI:

0.194–0.965), respectively in comparison with those who thought that smoking had no such negative impacts.

Conclusions: Schoolchildren with increased awareness of smoking effects on oral health were less likely to smoke.

Educating students about the complications of smoking on oral health should be the part of smoking cessation

programs and policies.

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IN PRESS PUBLICATIONS

13. Alkhamees OA, Al-Roujayee AS, Abuohashish HM, Ahmed MM. Anti-osteoporotic effects of an

antidepressant tianeptine on ovariectomized rats. Biomed Pharmacother. 2017;87:575-582.

Indexing Status: Scopus: Web of Science: PubMed:

Abstract

In the current investigation, the potential alleviating effects of tianeptine against bone loss induced in

ovariectomized (OVX) rats was determined. Two weeks following a bilateral ovariectomy operation, tianeptine

treatment (12.5 and 25mg/kg/twice/d) was initiated and continued for twenty-eight consecutive days. Changes in

serum and urinary bone turnover biomarkers and osteoclastogenesis-inducing factors were estimated. The femoral

bone mineral content was estimated using inductively-coupled-plasma mass spectrometry. Morphometric

alterations of distal femoral bones were observed in the cortical and trabecular structures using micro-CT. Finally,

femur bones were assessed for histopathological changes. The lack of estrogen significantly increased the levels of

bone turnover biomarkers and inflammatory mediators. Mineral concentrations in the femoral bones were

reduced in the OVX group. Furthermore, the femoral bone micro-architecture determined using micro-CT and

histopathology were significantly altered by estrogen deficiency. Tianeptine, particularly the higher dose, corrected

the elevated levels of bone metabolic products and pro-inflammatory cytokines. Tianeptine also improved mineral

concentrations in femoral bones and the disturbed morphometric and histopathological features in OVX rats. In

conclusion, tianeptine alleviated the osteoporotic changes in OVX animals, which may be via inhibition of the

hypothalamic-pituitary-adrenal axis stress and osteoclastogenesis-provoking factors, suggesting attenuation of

bone matrix degradation and osteoclast stimulation.

1. Muhammad Ashraf Nazir. Prevalence of periodontal disease, its association with systemic diseases and

prevention. International Journal of Health Sciences 2017; In Press.

2. Al-Harbi FA, Ayad NM, ArRejaie AS, Bhagat HA, Baba NZ. Effect of Aging Regimens on Resin Nanoceramic

Chairside CAD/CAM Material. J Prosthodont. 2017; In Press.

3. El Tantawi M, Sadaf S, AlHumaid J. Using gamification to develop academic writing skills in dental

undergraduate students. Eur J Dent Educ 2017; In Press.

4. Adel AlAgl. Periodontal abcess as a possible oral clinical sign in the diagnosis of undiagnosed Diabetes mellitus

in a dental clinical set up – A 7 year cross sectional study. Journal of Investigative and Clinical Dentistry 2017; In

Press.

5. Ahmad M Al-Thobity. Fabrication of an Implant-Supported Fixed Provisional Prosthesis Using a Duplicate

Denture: An Alternative Technique. Journal of Prosthodontics 2017; In Press.

6. Ahmad M. Al-Thobity, Talal Alnassar, Robert J Flinton. Conservative Approaches to Replace Congenitally Missing Lateral Incisor. New York State Dental Journal 2017; In Press.

7. A. ArRejaiei, H. Alalawi, F. Al-Harbi, R. Abualsaud, AM. Al-Thobity. Internal Fit and Marginal Gap Evaluation

of Zirconia Copings Using MicroComputerized Tomography: An in-vitro Analysis. International Journal of

Periodontics & Restorative Dentistry 2017; In Press.

8. Kellesarian SV, Yunker M, Malmstrom H, Almas K, Romanos GE, and Javed F. Male infertility and dental health

status: the missing link? A systematic review. American Journal of Men's Health 2017; In Press.

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IN PRESS PUBLICATIONS

9. Almas K, Koci E. Laser applications in dentistry: an evidence-based clinical decision-making approach. Book

Chapter: Lasers in Dentistry. Hindawi Publications 2017; In Press.

10. Abdullah A Alsani, AbdulRahman BalHaddad, Muhammad Ashraf Nazir. Vertical Root Fracture: A Case

Report and Review. Italian Journal of Endodontics 2017; In Press.

11. Irfan Ahmed. Altered Passive Eruption & Active Secondary Eruption: Differential diagnosis and management.

International Journal of Esthetic Dentistry 2017; In Press.

12. Al-Thobity A, Kutkut A, Almas K. Microthreaded Implants and Crestal Bone Loss: A Systematic Review. J Oral

Implantol. 2017; In Press.

13. Badr A. Al-Jandan, Faiyaz Ahmed Syed, Ahed Zeidan, Hesham F. Marei , Imran Farooq. Pharyngeal pack

placement in minor oral surgery: A prospective randomized controlled study. Ear, Nose & Throat journal 2017; In

Press.

14. Abdul Samad Khan. Vibrational Spectroscopy of Selective Dental Restorative Materials. Applied Spectroscopy

Reviews 2017; In Press.

15. Alagl A, Bedi S, Hassan K. Usage of platelet rich plasma for regeneration in non-vital immature permanent

teeth: Clinical and cone-beam computed tomography evaluation. Journal of International Medical Research 2017;

In Press.

16. AbdulKhalek AMG, El Kateb MA, AbdelAziz WE, El Tantawi M. Effect of Papacarie and Alternative Restorative

Treatment on pain reaction during caries removal among children: A Randomized Controlled Clinical Trial. J Clin

Pediatr Dent. 2017; In Press.

17. El Tantawi M, Hamza MA, Sabry MM. Dentists' perception of primary health care services in different health

care systems in Alexandria, Egypt. Eastern Mediterranean Health Journal 2017; In Press.

18. Hussein YA, El-Tekeya MM, Dowidar KL, El Tantawi M. Differences between children with early childhood

caries and caries free children in oral health habits: a case control study. Alex Dent J 2017; In Press.

19. Eman Bakhurji, Thayer Scott, Thomas Mangione, Wossung Sohn. Dentists' Perspective about Dental Amalgam:

Current Use and Future Direction. Journal of Public Health Dentistry 2017; In Press.

20. Hassan U, Farooq I, Moheet IA, AlShwaimi E. Cutting efficiency of different dental materials utilized in an air

abrasion system. International Journal of Health Sciences 2017; In Press.

21. Ahmed Salah Ashour. Gross anatomy course delivery via team based learning. International Journal of

Learning and Development 2017; In Press.

22. Ahmed Salah Ashour. Reversible effect of maijuana on rat hippocampus. International Journal of Medical

Research Professionals 2017; In Press.

23. Mohammed Gad, Shaimaa Fouda, Aws ArRejaie, Ahmad Al-Thobity. Comparative Effects of Different

Polymerization Techniques on the Flexural and Surface Properties of Acrylic Denture Bases. Journal of

Prosthodontics 2017; In Press.

24. El Tantawi M, AlAgl A. Association between gingivitis severity and lifestyle habits in young Saudi

males. Eastern Mediterranean Health Journal 2017; In Press.

25. L. Al Dehailan. Fluoride Concentration in Saliva and Biofilm Fluid Following the Application of Three Fluoride Varnishes. Journal of Dentistry 2017; In Press.

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26. Hassan U, Farooq I, Moheet IA, AlShwaimi E. Cutting efficiency of different dental materials utilized in an air

abrasion system. International Journal of Health Sciences 2017; In Press.

27. Nazir MA. Prevalence of periodontal disease, its association with systemic diseases and prevention.

International Journal of Health Sciences 2017; In Press.

28. Ahmed Salah Ashour. Glance at pathological consideration of peri-operative peripheral nerve injuries and

anatomical aspects of prevention strategy. International Journal of Applied Research 2017; In Press.

29. Adel Alagl, Sumit Bedi, Khalid Hassan, Jehan AlHumaid. Use of platelet-rich plasma for regeneration in non-

vital immature permanent teeth: Clinical and cone-beam computed tomography evaluation. Journal of

International Medical Research 2017; In Press.

30. Al-Thobity AM, Gad M, ArRejaie A, Alnassar T, Al-Khalifa K. Immersion impact of denture cleansing solutions

on some properties of different denture base materials: An in-vitro study. Journal of Prosthodontics 2017; In Press.

31. Hamad Al-Saleh, Thamir Al-Houtan, Khalid Al-Odaill, Basel Al-Mutairi, Mohammed Al-Muaybid, Tameem Al-

Falah, Muhammad Ashraf Nazir. Role of community pharmacists in providing oral health advice in the Eastern

Province of Saudi Arabia. The Saudi Dental Journal 2017; In Press.

32. Ahmed S. Ashour, Dina Khairy. Reversible effect of Marijuanaon the Rat Hippocampal tissue. International

Journal of Medical Research Professionals 2017; In Press.

33. Neveen Ayad, Hala A. Bahgat, Eman Hussain Al Kaba, Maryam Hussain Buholayka. Food-Simulating Organic

Solvents for Evaluating Crosslink Density of Bulkfill Composites resin. International Journal of Dentistry 2017; In

Press.

34. AlShwaimi E. Cyclic fatigue resistance of a novel rotary file manufactured using controlled memory Ni-Ti

technology compared to a file made from M-wire file. Int Endod J. 2017; In Press.

S.

No.

PI Participants Title

1. Dr. Abdul Samad Khan Mr. Lindsey Mateo Characterization of Dental Restorative

Materials.

2. Dr. Badr AlJandan Dr. Hesham Amrei

Dr. Haytham AlMahalawy

Effects of Sunitinib targeted

chemotherapy on the osseointegration of

titanium implants

3. Dr. Abdul Samad Khan Dr. Imran Farooq

Lindsey Mateo

Jim Santender

Remineralization potential of novel

bioctive glass containing toothpastes

- An in-vitro study

4. Prof. Amr Mahrous Dr. Amal Nawasrah In Vitro Effect of Tooth brushing

Simulation on Shade Stability of

Extrinsically Stained Cercon High

Translucency Restorative Material

5. Dr. Abdul samad Khan Lindsey Mateo Characterization of dental Restorative

Materials

6. Dr. Fahad AlHarbi Dr. Maha El Tantawi Factors Affecting the number and

distribution of dentists and dental visits: a

study of dental workforce; Saudi Arabia.

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14

For further information and comments, please contact

Vice Deanship for Postgraduate Studies and Scientific Research

College of Dentistry, University of Dammam Kingdom of Saudi Arabia

Tel: 013-33-31510 Email: [email protected]

S.

No.

PI Intern(s) Title

1. Dr. Abdul Samad Khan Abdulelah AlSubaie

Abdulmohsen Alessa

Abdulhadi Alali

Hassan Alsubaie

Effect of Experimental Dentifrice on

Dental Restorative. An In Vitro study

2. Dr. Imran Farooq Hamed alali

Mojtaba Hussain

Abullah AlShahab

Ali Alabdulmohsen

Ahmed AlHazoom

Effect of bristle stiffness of manual

toothbrushes on normal and

demineralized human enamel- An in vitro

study

3. Dr. Mohammed Nazir Ali Alshammrani

Abdulwahab aljughaiman

Abdullah Althumairi

Abdulaziz Alshammari

Patient satisfaction with orthodontic

treatment received in private and public

clinic in the Eastern province of Saudi

Arabia

4. Dr. Eman Bakhurji Hassan Alsaif

Khalid Alghamdi

Mohammed Alshehri

Anticipatory guidance: attitude of Saudi

Arabia dentists in the eastern province,

Saudi Arabia

5. Dr. Abdul Samad Khan Abdulelah Al-Subaie

Hassan Al-Subaie

Abdulmohsen Al-Essa

Abdulhadi Al-Ali

Effect of Experimental Dentifrice on

Dental Restorations. An in vitro study

S.

No.

PI Student(s) Title

1. Dr. Mohammad Gad Danah Almaskin

Masoumah Qaw

Tahani Abu Showmi

Zahra Alzaher

Effect of nanozirconia addition and repair

surface treatment on the shear bond

strength of repaired polymethyl

methacrylate denture bases

2. Dr. Muhammad Ashraf

Nazir

Alaa Al-Shaia

Alanoud Al-Dubayan

Sarah Al-Urifan

Shahad Al-Ammar

The attitude and willingness of patients

and dentists towards chair-side screening

for medical conditions in dental settings

in Dammam, Saudi Arabia

3. Dr. Maha El-Tantawi Hassan Al-Mahrous

Mohammed Al-Abbad

Ali Al-Dajani

Bander Al-Karri

Maithem Mahfoud

Preferences of teenagers toward dentist

attire and dental clinic

For further information and comments, please contact

Vice Deanship for Postgraduate Studies and Scientific Research College of Dentistry, Imam AbdulRahman Bin Faisal University

Kingdom of Saudi Arabia Tel: 013-33-31510

Email: [email protected]

Page 15: Vol 4, Issue 1 (Jan-Mar 2017) · 2017-05-31 · 1 of Dentistry, Dr. Abdul Majeed Research Bulletin Vol 4, Issue 1 (Jan-Mar 2017) Vice Deanship of Postgraduate Studies and Scientific

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What is seen

- Published paper

What actually happens

- Innovative idea

- Planning

- Hard work

- Execution

- Data analysis

- Writing

- Proof reading

- Submission

- Rejections

- Persistance

- Success

PUBLICATION IS LIKE

AN ICE BERG