Title of article :
Evaluation of silver methenamine method for nanoleakage
Author/Authors :
Mario Fernando de Goes، نويسنده , , Marcos Antonio Japiass? Resende Montes، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
8
From page :
391
To page :
398
Abstract :
Objectives: The aim of this study was to evaluate nanoleakage patterns following silver methenamine staining of restorations bonded with a total-etch single bottle system, a self-etching primer system and a total-etch single bottle system after collagen depletion. Methods: The dentin bonding systems used in this study were Prime and bond 2.1 (PB) and Clearfil SE Bond (CSEB). Cavities were made in grounded labial surfaces of 15 extracted bovine lower incisors, randomly divided into 3 Groups. Group 1 (PB), Group 2 (CSEB) and Group 3 (PB/SH) PB after collagen depletion with sodium hypochlorite (SH). The specimens were restored, sectioned and submitted to silver methenamine staining, polished and observed with low-vacuum back-scattered SEM. One way ANOVA and multiple-comparison Tukeyʹs test were used for statistical analysis of the leakage scores. Results: PB presented significantly greater silver deposition and a distinct pattern when compared to CSEB. No silver deposition was detected for PB after collagen depletion. Significance: The dentine bonding systems tested were unable to prevent nanoleakage when used according to the manufacturersʹ instructions; however, CSEB presented a lower level of silver deposition. Collagen depletion prior to PB application may prevent nanoleakage occurrence in dentine walls. Silver methenamine staining may be a useful method for detection of nanoleakage in dentine when the collagen fibrils remain exposed within the hybrid layers.
Keywords :
Nanoleakage , Silver , Methenamine , Dentinbonding , Hybrid layer , Collagen depletion
Journal title :
Journal of Dentistry
Serial Year :
2004
Journal title :
Journal of Dentistry
Record number :
507321
Link To Document :
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