Effect of Quality of Dental Restorations and Time Elapsed Since Placement on Biofilm RetentionReportar como inadecuado

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Acta stomatologica Croatica, Vol.47 No.4 December 2013. -

Objective: The aim of this study was to evaluate associations of biofilm retention on resin-restored surfaces of anterior teeth with quality and time elapsed since placement. Methods: The study sample comprised 120 teeth with 230 restored surfaces in 40 patients of both sexes aged 16–60 years. The Plaque Retention and Extension in Restoration Index PRRI was used to measure the degree of biofilm retention, and the surface roughness of the material, cavity type and margins, and external cavity preparation characteristics were also evaluated. Results: Most surfaces analysed had been placed 1–5 years previously. The most prevalent PRRI biofilm retention scores were III and IV, 83.0% of samples presented surface roughness, 46.5% of cavities were class III, 62.2% of surfaces had subgingival margins, and 38.6% retained excessive restorative material. Surface roughness was significantly associated with the degree of biofilm retention and time elapsed since placement both p < 0.01. Three external cavity preparation characteristics over-contouring, lack of restorative material, tooth–restoration interface were also associated significantly with the time elapsed since placement all p < 0.05. Conclusion: The time elapsed since the placement of resin restorations influences surface roughness and the degree of biofilm retention.

Dental Cavity Preparation; Composite Resin; Surface Properties; Biofilms

Autor: Estela S Gusmão - Rodrigo MG Mattos - Tiago FL Fonte - Renata SC Soares - Reanata Cimões - Bruna C Farias -

Fuente: http://hrcak.srce.hr/


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