Clinical Aspects of Combination of Ceramic and Acrylic Occlusal Surfaces

Z. Ozhohan, Andrii Biben

Abstract


The objective of the research was to develop and substantiate the methods of constructing the occlusal surfaces when manufacturing aesthetic fixed restorations through the combination of different materials.

Materials and methods. The study included 65 patients with ceramic and acrylic occlusal surfaces of aesthetic fixed dental prostheses. Group I included 21 patients with a combination of ceramic and acrylic occlusal surfaces. Group II included 22 patients with a combination of ceramic occlusal surfaces. Group III included 22 patients with a combination of acrylic occlusal surfaces. The patients were observed 3, 6 and 12 months after prosthetic repair.

Results. The greatest increase in the occlusal contact surface area of fixed restorations was observed in Group I, that is, when combining dental prostheses with ceramic and acrylic occlusal surfaces. Considering uneven abrasion of the occlusal surfaces, we do not recommend to combine different materials when veneering the occlusal surface of the antagonistic teeth.

Conclusions. This study demonstrated the important role of the correct combination of materials when veneering the occlusal surfaces. Physical and chemical properties of materials, namely the abrasion resistance play a significant role in the long-term denture functioning.

The smallest increase in the occlusal contact surface area was observed in Group II when combining ceramic occlusal surfaces. It was due to a good abrasion resistance of ceramics as compared to acrylic resin as well as the presence of the glazed layer which prevents the premature abrasion of the occlusal surfaces of the antagonistic teeth due to lower surface roughness.

The combination of acrylic resin and ceramics when constructing the occlusal surfaces of fixed restorations in Group I demonstrated the highest rate of the increase in the occlusal contact surface area – 9.93%. It was due to a low hardness of acrylic resin and its high surface roughness. In addition, there was observed an uneven abrasion of the occlusal surfaces resulting in periodontal tissue overload, thereby negatively affecting denture functioning.


Keywords


prosthetic appliances; occlusal surfaces; acrylic resin; ceramics

Full Text:

HTML PDF

References


Zholudev DS. Ceramic materials in prosthetic dentistry; Ceramic based on aluminum oxide. Problemy stomatologii. 2012;5:8–15

Bida BI. Pryntsypy ortopedychnoho likuvannia patolohii zuboshchelepnoii systemy pry znyzhenni vysoty prykusu, yoho prohnozuvannia ta profilaktyka: avtoref. dys. na zdobuttia nauk. stupenia d-ra med. nauk: spets. 14.01.22. “Stomatolohiia”. Kyiv: 2003. 31 p

Mitin NE, Nabatchikova LP, Vasilyeva TA. The analysis of contemporary methods of occlusion estimation and registration on the stage of orthopedic dentistry treatment. Ros mediko-biol vestn im akad IP Pavlova. 2015;3:134–139

Yang X, Sun YF, Tian L, et al. Precision of digital impressions with TRIOS under simulated intraoral impression taking conditions. Beijing Da Xue Xue Bao. 2015;47(1):85–89

Bragareva NV. [Metody kontrolya pri vosstanovlenii okklyuzii na ortopedicheskom prieme]. Problemy stomatologii. 2013;5:45–49




DOI: http://dx.doi.org/10.21802/gmj.2017.1.8

Copyright (c) 2017 Z. Ozhohan, Andrii Biben

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.


IFNMU Logo

Free counters!