807 Influence of chlorhexidine digluconate on clinical performance of cervical restoration

Friday, March 23, 2012: 2 p.m. - 3:15 p.m.
Presentation Type: Poster Session
L.D. CARVALHO1, G. LOPES2, N. SARTORI3, S. STOLF1, S. SILVA4, M. BECKER4, and G. ARCARI4, 1Dentistry, Universidade Federal De Santa Catarina, Florianopolis, Brazil, 2Universidade Federal De Santa Catarina, Lagoa da Conceicao Florianopolis SC, Brazil, 3Universidade Federal de Santa Catarina, Florianopolis, Santa Catarina, Brazil, 4Universidade Federal De Santa Catarina, Florianopolis, Brazil
Objective: The purpose of this randomized clinical trial was to evaluate the effect of 2% chlorhexidine digluconate under composite resin restoration.

Method: After the approval of the Ethics and Informed Consent Committee, 70 non-carious cervical lesions were selected and randomly assigned to two groups. Control group: restored with a two-step etch-and-rinse adhesive (Adper Single Bond 2, 3M ESPE) following manufacturers instructions; experimental group: restored in the same way of control group, however was applied a 2% chlorhexidine digluconate solution (30s) after etching and prior the adhesive application. All lesions were restored with Filtek Supreme (3M ESPE) and cured with a light-curing unit operating at 600 mW/cm2. Clinical performance was recorded after 1 week, 2, 6, 12, 36 and 48 months in terms of retention, post-operative sensitivity, marginal discoloration, marginal integrity, and secondary caries incidence. Data were analyzed using Chi-Square tests at p<0.05.

Result: At 48 months evaluation control group has a success rate of 84% in comparison to 76% of experimental group, although this difference was not statistically significant. No other statistical differences were observed between groups for criteria post-operative sensitive, marginal discoloration, marginal integrity, and secondary caries incidence.


Conclusion: The application of 2% chlorhexidine digluconate after etching and prior adhesive do not increase the bonding effectiveness in non-carious cervical lesions after 48 months

Keywords: Adhesion, Clinical trials and Composites