Microtensile Bond Strength of Self-Adhesive Resin Cements to CAD/CAM Resin-Matrix Ceramics Prepared with Different Surface Treatments.

Autor:	Bayazıt EÖ
Jazyk:	angličtina
Zdroj:	The International journal of prosthodontics [Int J Prosthodont] 2019 Sep/Oct; Vol. 32 (32), pp. 433-438.
DOI:	10.11607/ijp.6268
Abstrakt:	Purpose: To investigate the effects of different combinations of self-adhesive resin cements and surface treatments on the microtensile bond strength (μTBS) of different CAD/CAM resin-matrix ceramics. Materials and Methods: Two different types of CAD/CAM resin-matrix ceramics (LAVA Ultimate [LU] and Vita Enamic [VE]) were used. Slices 5 mm in thickness were obtained from each CAD/CAM material. Samples of each ceramic were randomly separated into the following surface treatment groups: (1) Control group with no surface treatment; (2) 9.5% hydrofluoric acid (HF) + universal adhesive (UA, Single Bond Universal, 3M ESPE); and (3) Sandblasting with 50-μm aluminum oxide particles (SN) + UA. Two different types of recently developed resin cement (RelyX U200, 3M ESPE; SET PP, SDI Dental Limited) were applied to the treated ceramic slices in each group. After 24 hours, parallel sections were removed from the specimens, and microbeam-shaped sticks (1.0 × 1.0 × 10 mm) were prepared. The μTBS test was performed, and the data were statistically analyzed. Results: Statistical analyses revealed differences among the study groups (P < .05). The control groups of each resin cement exhibited lower μTBS values than the groups that received surface treatment (P < .05). The effect of surface treatment on μTBS (partial eta-squared [ηp 2 ] = 0.381) was more significant than the effects of ceramic (ηp 2 = 0.267) and self-adhesive resin cement (ηp 2 = 0.184). Conclusion: Surface treatment is the most important factor affecting the μTBS of resin cement to CAD/CAM materials, followed by the type of resin-matrix ceramic and the type of resin cement, respectively.
Databáze:	MEDLINE
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