Affiliation:
1. ATATÜRK ÜNİVERSİTESİ
2. BOLU ABANT IZZET BAYSAL UNIVERSITY
Abstract
OBJECTIVES: This study investigated the mechanical properties of laminate veneers to determine their resistance to the shear force of three different types of cement used in the restorations.
MATERIAL and METHODS: Laminate veneers were prepared using the standard tooth preparation methods for 30 extracted maxillary central incisors. To standardize the depth, guide burs were used to prepare a depth of 0.5 mm from the buccal angle. The samples were allocated into three randomized groups (n = 10): Group A (resin using the total etch method and Variolink Esthetic DC resin cement; Group B (resin using the PANAVIA F2.0 self-etch method; and Group C (self-adhesion bonded with Rely X U200 resin cement). The prepared specimens were stored in distilled water for one week before a shear test was used to determine the resistance of the veneers to the bonding. The obtained data were evaluated statistically.
RESULTS: The values of the shear bond strength were statistically significant depending on the type of resin cement that was applied (p ˂ 0.05). The specimens that were cemented using the total-etch method (18.79±4.48 MPa) had the lowest shear force value. The obtained data were evaluated statistically by Tukey multiple comparison test (p > 0.05).
CONCLUSIONS: The cement is a highly effective factor in the bonding between fixed prosthetic restorations and the abutment tooth, and the cement used must have sufficient resistance to shear forces.
Reference33 articles.
1. 1. Ahrari F, Heravi F, Rashed R, Zarrabi MJ, Setayesh Y. Which factors affect dental esthetics and smile attractiveness in orthodontically treated patients? J Dent (Tehran, Iran). 2015;12(7):491.
2. 2. Yavuz Ö, Toksavul S, User A. Tüm seramik kronların kırılma dayanıklılıklarının seramometal restorasyonlarla karşılaştırılması. Ege Üniv Diş Hek Fak Derg. 1999;20:102-10.
3. 3. Potiket N, Chiche G, Finger IM. In vitro fracture strength of teeth restored with different all-ceramic crown systems. J Prosthet Dent. 2004;92(5):491-5.
4. 4. Beall AE. Can a new smile make you look more intelligent and successful? Dent Clin North Am. 2007;51(2):289-97.
5. 5. Bailey SJ, Swift Jr EJ. Effects of home bleaching products on composite resins. Quintessence Int. 1992;23(7).