The Influence of Saliva on Gingival Marginal Microleakage of Class II Cavities when Using Universal Bonding Agent in Direct Composite Restoration

Euroinvent ICIR 2018

Stoleriu, S.^1 ; Andrian, S.^1 ; Pancu, G.^1 ; Nica, I.^1 ; Iovan, G.^1

Odontology Periodontology and Fixed Prosthodontics Department, Grigore T. Popa University of Medicine and Pharmacy, Faculty of Dental Medicine, Iasi, Romania^1

关键词: Bonding agent;    Bonding procedure;    Cervical area;    Class II;    Composite restorations;    Hybrid composites;    Microleakage;    Self-etch;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/374/1/012090/pdf
DOI  :  10.1088/1757-899X/374/1/012090

来源: IOP

【 摘 要 】

The aim of the study was to evaluate by microleakage assessment the effect of saliva contamination during bonding procedure when a universal bonding agent applied in two different strategies was used in direct restoration using composite resins.Standardized box-only Class II cavities were prepared on the mesial and distal surfaces of twenty extracted teeth. A hybrid composite resin (Gaenial Posterior, GC Corporation) and a universal bonding agent (G Premio Bond, GC Corporation) applied in two different strategies: etch-and-rinse and self-etch were used for restoration, with or without saliva contamination of the gingival margin of the cavity. Lower leakage was recorded in the cervical area apically than CEJ when universal bonding agent was applied in self etch strategy when compared to etch-and-rinse strategy. On enamel margins (1mm upper than CEJ) universal bonding agents applied in etch-and-rinse technique leaded to lower microleakage. Irrespective of etch-and-rinse or self-etch strategy of applying, the presence of saliva impaired the enamel or dentine leakage of universal bonding agents.