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European Cells and Materials Vol. 11. Suppl. 2, 2006 (page 17)
ISSN 1473-2262
Wax Up Failures in the Removable Partial Dentures Technology
Using Light
Curing Materials
Cristina Bortun, Liliana Sandu, S. Porojan
Victor Babes University of Medicine and Pharmacy, Timisoara,
Romania
University School of Dentistry, Specialization of Dental
Technology
INTRODUCTION: The wax patterns of the
metallic frameworks of the removable partial
dentures could be made directly on the cast, using
profiled waxes like: Ti-Light or LiWa (light
curing waxes). This study intends to describe the
problems, failures of this new technology.
METHODS: The study was made at the
Department of Removable Partial Dentures
Technology, Specialization Dental Technology,
University School of Dentistry, Timisoara,
Romania, between 2004 and 2006, on 30 casts with
different edentation types [4]. The wax patterns of
removable partial dentures metallic frameworks
were made directly on the cast using profiled
waxes like:Ti-Light(Ti Research GbR,
Mainbernheim, Germany) and LiWa(WP Dental
GmbH Bevern/Hamburg).
RESULTS: Light-curing waxes are sticky (to casts
and instruments) and difficult to use (Fig. 1a).
Therefore they need precision in profiles applying.
Even the wax patterns seem to have a great
elasticity (Fig. 1b), their removing from the cast
have to be made with great patience, not producing
materials cracks or fractures (Fig 1c, d, 2a, b).
Fig. 1. Light curing wax up:a. LiWa sticky to
instruments, b. elasticity testing for both materials,c. cracks
al Ti-Light, d. cracks at LiWa.
Fig. 2. Statistics of cracks: a. for Ti-Light, b. forLiWa.
DISCUSSION & CONCLUSIONS:
1. Using light curing waxes is a novelty in the field
of removable partial dentures technology [1,2,3,4].
2. Reducing the working time and economizing
some materials used for intermediary stages are
major qualities that will impose this materials in
practice.
3. Even if not all of these biomaterials details are
known, the system could be completed, that will
modify the working system in the field of
removable partial dentures technology.
REFERENCES:1
C. Hafner (2003) Metacon
Lichtwachs, Helioform-Bote, Ausgabe 25, pp 5 .2
A. Hoffmann (2003) Erfahrungen mit dem
Lichthrtenden Wachs Metacon, Quintessenz
Zahntech, no.2, pp. 202-216.3
M. Palanuwech
(2003) The fatigue resistance of commercially pure
titanium (grade II), titanium alloy (Ti6Al7Nb) and
conventional cobalt-chromium clasps, Mnchen. 4
C. Bortun, L. Sandu,T. Susan, C.L. Negrut: (2005)
Utilizarea Ti Light o noumetodde machetarea componentei metalice
a protezelor scheletate.
Revista Romn de Medicin Dentar, vol. VIII,
no. 2, pp. 95-99.
a. b.
c. d.
a.
b.
3 cracks
2 cracks
1 crack
uncracked
3 cracks
2 cracks
1 crack
uncracked
