1. In VitroAdhesion of Streptococcus sanguinisto Dentine Root Surface After Treatment with Er:Yag Laser, Ultrasonic System, or Manual Curette.
- Author
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Claudia Ota-Tsuzuki, Fernanda L. Martins, Ana Paula O. Giorgetti, Patrícia M. de Freitas, and Poliana M. Duarte
- Subjects
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BACTERIAL adhesion , *LASERS in dentistry , *STREPTOCOCCUS , *DENTIN , *CURETTES , *TOOTH root planing , *BIOFILMS , *PROFILOMETER , *SURFACE roughness - Abstract
AbstractObjective:The purpose of this in vitrostudy was to evaluate the dentine root surface roughness and the adherence of Streptococcus sanguinis(ATCC 10556) after treatment with an ultrasonic system, Er:YAG laser, or manual curette. Background Data:Bacterial adhesion and formation of dental biofilm after scaling and root planing may be a challenge to the long-term stability of periodontal therapy. Materials and Methods:Forty flattened bovine roots were randomly assigned to one of the following groups: ultrasonic system (n= 10); Er:YAG laser (n= 10); manual curette (n= 10); or control untreated roots (n= 10). The mean surface roughness (Ra, μm) of the specimens before and after exposure to each treatment was determined using a surface profilometer. In addition, S. sanguiniswas grown on the treated and untreated specimens and the amounts of retained bacteria on the surfaces were measured by culture method. Results:All treatments increased the Ra; however, the roughest surface was produced by the curettes. In addition, the specimens treated with curettes showed the highest S. sanguinisadhesion. There was a significant positive correlation between roughness values and bacterial cells counts. Conclusion:S. sanguinisadhesion was the highest on the curette-treated dentine root surfaces, which also presented the greatest surface roughness. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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