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OBJECTIVE: The aetimology of temporomandibular disorders is
complex, and individual etiologic factors are not sufficiently defined.
Bruxism, in its centric or eccentric form, is becoming a frequent
problem for dentists. The purpose of this study is to show factors of
the condyle leading in patients with bruxism by optoelectronic
pantography, and to establish the possibility of using optoelectronic
pantography in the diagnostic procedure of TMD.
METHODS: Patients were selected (N = 42), with incomplete sets
of teeth, without prosthodontic appliances and with traces and
Men (29%)
Women
RENATA KEVILJ GOSPIC MSC.D.M.D.1
1 Dental Clinic Zagreb, Zagreb, Croatia
of teeth, without prosthodontic appliances and with traces and
symptoms of TMD. After completing the specific history
questionnaire (Helkim's index), a clinical check up (Bumann's
manual functional diagnostics) and plaster cast analysis in totally
adaptive articulator CAR (Dentron), patients with bruxism (N = 22)
and without bruxism (N=20) were selected. During the study
optoelectronic String-condylocomp LR3, Dentron, D-Höchberg
(software JAWS 30) was used.
RESULTS: This study showed the possibility of applying
optoelectronic pantography in TMD diagnostics and compares
0
20
40
18-24 25-44 45-64 65+
Patients
(%)
Age
Women (72%)
Fig1. Patients distribution by sex and age
optoelectronic pantography in TMD diagnostics and compares
history, clinical and condylographic parameters in TMD patients
with and without bruxism. It was also confirmed that patients with
bruxism have more frequent muscular disorders (neuromuscular
discoordination), while those without bruxism have more frequent
disorders of the disk-condyle complex (dorsal, dorsocranial
compression and anteromedial dislocation without repositioning)
and finally differences exist in the symptomatics of TMD patients
with and without bruxism.
CONCLUSION: Optoelectronic pantography enables us, by using
0
10
20
30
40
50
Oth
er
Neuro
musc
ula
r …
Myofa
cia
l pain
Muscle
spasm
Pro
tective
muscle
…
Muscle
contr
action
Hypert
hro
ph
y Mio
sitis
Patients
(%
)
Patients with bruxism
Patients without bruxism
CONCLUSION: Optoelectronic pantography enables us, by using
relatively easy methods, to determine a more accurate
diagnosis, highly important when choosing therapeutic methods and
control of the aforementioned disorders.
Neuro
musc
contr
action
Hypert
hro
ph
1 Kevilj R., Mehulic K., Dundjer A. : Temporomandibular disorders and bruxism-part 1. Minerva Stomatologica 2007; 56:393-98.
2 Kevilj R., Mehulic K., Dundjer A. : Diagnostic methods for detection of signs and symptoms of temporomandibular disorders-part 2 . Minerva Stomatologica 2007; 56:399
3 Mehulic K., Kevilj Gospic R., Dundjer A., Skrinjaric T., Stefancic S., Vojvodic D. and Perinic M. : Optoelectronic Pantography Diagnostics of Temporomandibular Disorders in Patients with Bruxism. Coll.Antropol. 2009;3:849
4 Wadhwa S., Kapila S. TMJ disorders: Future Innovations in Diagnostics and Therapeutics. J Dent Educ. 2008;72(8):930-47.
5 Probert TC, Wiesenfeld D., Reade PC. Temporomandibular pain dysfunction disorder resulting from road traffic accidents – An Australian study. Int J Oral Maxillofac Surg. 1994;23(6 pt1):338
6 Bedi S., Sharma A., Management of temporomandibular disorders associated with bruxism. J Indian Soc Pedod Prev Dent 2009;27(4):253-5.
Fig3. Distribution of primary diagnosis
according to muscle condition
Men (29%)
DOMINA RELJANOVIC PROTEGA D.M.D.1
Dental Clinic Zagreb, Zagreb, Croatia
Fig2. Condyle movement on mouth opening,
diagnostics with String Condylocomp LR3
Patients with
Patients without
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Oth
er
Ante
rom
edia
l dis
cus
dys
location w
ith …
Ante
rom
edia
l dis
cus
dys
location w
ith …
Ante
rom
edia
l dis
cus
dys
location w
ith …
Ante
rom
edia
l dis
cus
dys
location w
ithout …
Ante
rom
edia
l dis
cus
dys
location w
ithout …
Ante
rom
edia
l dis
cus
dys
location w
ithout …
Excentr
ic d
iscus
dys
location
Patients
(%
)
Patients with bruxism
Patients without bruxism
01020304050607080
Oth
er
Dyn
am
ic …
Dyn
am
ic …
Dors
al &
…
Dors
al &
…
Dors
al &
…
Dors
al &
…
Late
ral tr
ansla
tion
Media
l tr
ansla
tion
Ventr
al tr
ansla
tion
Caudal fr
action
Isom
etr
ic tensio
n
Patients
(%)
Patients with bruxism
Patients without bruxism
Late
ral tr
ansla
tion
Media
l tr
ansla
tion
Ventr
al tr
ansla
tion
Address for correspondence:
Renata Kevilj Gospic MSC.D.M.D
Dental Clinic Zagreb
Department of Orthodontics
Perkovceva 3, 10000 Zagreb, Croatia
Email: [email protected]
2 . Minerva Stomatologica 2007; 56:399-404.
y Diagnostics of Temporomandibular Disorders in Patients with Bruxism. Coll.Antropol. 2009;3:849-56.
stralian study. Int J Oral Maxillofac Surg. 1994;23(6 pt1):338-41.
Fig4. Distribution of primary diagnosis
according to disc condition
Fig5. Distribution of primary diagnosis
according to joint condition
