Bonding of the silane containing multi-mode universal adhesive for lithium disilicate ceramics
이현영, 한금준, 장주혜, 손호현,
소속 상세정보
이현영 ( Lee Hyun-Young ) - Seoul National University School of Dentistry Department of Conservative Dentistry
한금준 ( Han Geum-Jun ) - Seoul National University School of Dentistry Department of Dental Biomaterials Science
장주혜 ( Chang Ju-Hea ) - Seoul National University Dental Hospital Special Care Clinic
손호현 ( Son Ho-Hyun ) - Seoul National University School of Dentistry Department of Conservative Dentistry
KMID : 1034420170420020095
Abstract
Objectives: This study evaluated the influence of a multi-mode universal adhesive (MUA) containing silane (Single Bond Universal, 3M EPSE) on the bonding of resin cement to lithium disilicate.
Materials and Methods: Thirty IPS e.max CAD specimens (Ivoclar Vivadent) were fabricated. The surfaces were treated as follows: Group A, adhesive that did not contain silane (ANS, Porcelain Bonding Resin, Bisco); Group B, silane (S) and ANS; Group C, hydrofluoric acid (HF), S, and ANS; Group D, MUA; Group E, HF and MUA. Dual-cure resin cement (NX3, Kerr) was applied and composite resin cylinders of 0.8 mm in diameter were placed on it before light polymerization. Bonded specimens were stored in water for 24 hours or underwent a 10,000 thermocycling process prior to microshear bond strength testing. The data were analyzed using multivariate analysis of variance (p < 0.05).
Results: Bond strength varied significantly among the groups (p < 0.05), except for Groups A and D. Group C showed the highest initial bond strength (27.1 ± 6.9 MPa), followed by Group E, Group B, Group D, and Group A. Thermocycling significantly reduced bond strength in Groups B, C, and E (p < 0.05). Bond strength in Group C was the highest regardless of the storage conditions (p < 0.05).
Conclusions: Surface treatment of lithium disilicate using HF and silane increased the bond strength of resin cement. However, after thermocycling, the silane in MUA did not help achieve durable bond strength between lithium disilicate and resin cement, even when HF was applied.
키워드
Lithium disilicate; Microshear bond strength; Resin cement; Silane; Universal adhesive
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