Fracture localization of composite veneers with different preparation designs exposed to compressive load

Zlatanovska, Katerina and Zarkova - Atanasova, Julija and Longurova, Natasa and Kovacevska, Ivona and Gigovski, Nikola (2017) Fracture localization of composite veneers with different preparation designs exposed to compressive load. In: 22nd Bass Congress, Contemporary Challenges in Dentistry, 4-6 May 2017, Thessaloniki, Greece.

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Abstract

Background: The aim of this in vitro study was to evaluate the localization of fracture of composite veneers with three different incisal preparations. Methods and Materials: 15 extracted human permanent maxillary central incisors were divided into three groups (n=5). Teeth from each group were prepared with different type of preparation for producing veneers. Group 1: feather preparation; group 2: bevel preparation and group 3: incisal overlap-palatal chamfer. Composite veneers were produced using light-curing technical composite In:joy (DeguDent) and bonded to the prepared maxillary central incisors using resin cement RelyX Veneer (3M ESPE). Specimens were loaded to fracture in universal testing machine TRITECH WF 10056 (WykehamFarrance,Milan,Italy). The localization of fracture was recorded and data were statistically analyzed. Results: The most common localization of fracture in group 1 was gingival, group 2 incisal, while in group 3 in two specimens only incisal and three specimens with incisal and gingival localization. Conclusion: Preparation design had a significant effect on the fracture localization. According to the results, the preferred preparation designs is incisal overlap-palatal chamfer. The veneers with this type of preparation exhibited better fracture resistance and superior aesthetic for the patient.

Item Type: Conference or Workshop Item (Poster)
Subjects: Medical and Health Sciences > Clinical medicine
Medical and Health Sciences > Health biotechnology
Divisions: Faculty of Medical Science
Depositing User: Katerina Zlatanovska
Date Deposited: 14 Aug 2017 10:25
Last Modified: 14 Aug 2017 10:25
URI: http://eprints.ugd.edu.mk/id/eprint/18025

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