Document Detail


Oral streptococci growth on aging and non-aging esthetic restorations after radiotherapy.
MedLine Citation:
PMID:  20976386     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The aim of this study was to examine Streptococcus mutans biofilm growth on both aged and non-aged restorative dental resins, which were submitted to therapeutic irradiation. Sixty-four disks of an esthetic restorative material (Filtek Supreme) were divided into 2 groups: aged group (AG) and a non-aged group (NAG). Each group was subdivided into 4 subgroups: non-irradiated and irradiated with 10Gy, 35Gy, and 70Gy. The biofilms were produced by Streptococcus mutans UA159 growing on both AG and NAG surfaces. The colony-forming units per mL (CFU/mL) were evaluated by the ANOVA and the Tukey LSD tests (α=0.05). AG presented smaller amounts of CFU/mL than the NAG before irradiation and after 10Gy of irradiation (p<0.05). AG irradiated with 35 and 70Gy showed increased amount of bacterial biofilm when compared to non-irradiated and 10Gy-irradiated disks (p<0.05). The exposure to ionizing radiation at therapeutic doses promoted changes in bacterial adherence of aged dental restorative material.
Authors:
Adriana D da Cruz; Karina Cogo; Cristiane de C Bergamaschi; Frab N Bóscolo; Francisco C Groppo; Solange M de Almeida
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Brazilian dental journal     Volume:  21     ISSN:  1806-4760     ISO Abbreviation:  Braz Dent J     Publication Date:  2010  
Date Detail:
Created Date:  2010-10-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9214652     Medline TA:  Braz Dent J     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  346-50     Citation Subset:  D    
Affiliation:
Department of Oral Diagnosis, Area of Dental Radiology, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil.
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