Effect of Pre-treatment with Chlorhexidine on the Retention of Restorations: A Randomized Controlled Trial

Brazilian Dental Journal

Anelise Fernandes Montagner¹  Ana Paula Perroni¹  Marcos Britto Corrêa¹  Alexandre Severo Masotti¹  Tatiana Pereira-cenci¹  Maximiliano Sérgio Cenci¹ 

关键词: chlorhexidine;    MMP inhibitor;    adhesive system;    controlled clinical trial;    dental restoration;    non-carious cervical lesions;   

DOI  :  10.1590/0103-6440201300009

来源: SciELO

【 摘 要 】

This study aimed to evaluate the effect of chlorhexidine (CHX) application on etched dentin on the 6-month retention of restorations placed on non-carious cervical lesions (NCCLs). A randomized controlled split-mouth and triple blind trial was carried out. Patients (n=42) with at least two non-carious cervical lesions were included. NCCLs were randomly assigned to two groups: control (placebo solution) or test group (2% CHX solution for 60 s after acid etching and before the adhesive application). Class V restorations (n=169) were performed with an etch-and-rinse adhesive system and composite resin by 10 trained operators. A calibrated examiner evaluated the restorations at 1 week (baseline) and at 6 months using the FDI criteria. The primary outcome was retention of the restorations. The analysis of factors associated to failure of restorations was carried out by Fisher's exact test (α=0.05). After 6 months of follow-up, 3.4% (CI 95% 1.3-7.3) of the restorations failed. There was no statistically significant difference between control and CHX (p=0.920). Regarding the cavity variables, deeper (p=0.04), wider (p=0.004) and wedge-shaped (p=0.033) cavities failed more. Both treatments provided acceptable clinical performance of the restorations. The use of CHX as a adjuvant in dentin adhesion did not influence the retention of Class V restorations after 6 months of follow-up.

【 授权许可】

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