Influence of chlorhexidine application at longitudinal push-out bond strength of fiber posts

被引：34

作者：

Branco Leitune, Vicente Castelo ^{[1
]}

Collares, Fabricio Mezzomo ^{[1
]}

Werner Samuel, Susana Maria ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Sch Dent, Dent Mat Lab, BR-90035003 Porto Alegre, RS, Brazil

来源：

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY | 2010年 / 110卷 / 05期

关键词：

ENDODONTICALLY TREATED TEETH; RESIN-DENTIN BONDS; ROOT-CANAL DENTIN; IN-VIVO; COLLAGEN DEGRADATION; ADHESIVE SYSTEMS; HYBRID LAYERS; MICROTENSILE; CONVERSION; GLASS;

D O I：

10.1016/j.tripleo.2010.04.046

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Objective. The objective of this study was to evaluate the influence of chlorhexidine application after dentin phosphoric acid etching at immediate and long-term bond strength of a fiber post cemented to root dentin. Study design. Seventy-two single-rooted, human upper teeth were selected. After phosphoric acid etching, each group received a different dentin treatment: no pretreatment or chlorhexidine 0.2% or 2.0%. Three-step etch-and-rinse adhesive and dual-cured resin cement was used to cementation procedure. Half of the teeth were submitted to push-out bond strength test after 24 hours and the other half after 6 months. Data were analyzed by 2-way ANOVA and Tukey. Results. Chlorhexidine application had no influence on bond strength when teeth were stored at the same aging time (P > .05). The storage time significantly decreased the bond strength values of 24 hours to 6 months in all groups (P < .05). Conclusion. After 6 months, chlorhexidine application did not effectively arrest bond strength degradation of fiber posts cemented in human roots. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010;110:e77-e81)

引用

页码：E77 / E81

页数：5

共 35 条

[1] Microtensile bond strength of a dual-cure resin core material to glass and quartz fibre posts [J].