Nd:YAG laser clinical assisted in class II furcation treatment |
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Authors: | Ana Karina Pinto de Andrade Ilíria Salomão Feist Cláudio Mendes Pannuti Silvana Cai Denise Maria Zezell Giorgio De Micheli |
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Affiliation: | 1. Stomatology Department, Periodontics Discipline, School of Dentistry, University of S?o Paulo (USP), Av Prof Lineu Prestes 2227, Cep 05508-900 Cidade Universitária, S?o Paulo, Brazil 2. Microbiology Department of the Institute of Biomedical Sciences, University of S?o Paulo (USP), Av Prof Lineu Prestes 1374 Ed. Biomédicas II, Cep 05508-900. Cidade Universitária, S?o Paulo, Brazil 3. Centro de Lasers e Aplica??es, Instituto de Requisas Energéticas e Nucleares–IPEN/CNEN-SP, Av Prof Lineu Prestes 2242, Cep 05508-000 Cidade Universitária, S?o Paulo, Brazil
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Abstract: | The Nd:YAG laser efficacy associated with conventional treatment for bacterial reduction has been investigated throughout literature. The purpose of this study was to evaluate the bacterial reduction after Nd:YAG laser irradiation associated with scaling and root planning in class II furcation defects in patients with chronic periodontitis. Thirty-four furcation lesions were selected from 17 subjects. The control group received conventional treatment, and the experimental group received the same treatment followed by Nd:YAG laser irradiation (100 mJ/pulse; 15 Hz; 1.5 W, 60 s, 141.5 J/cm2). Both treatments resulted in improvements of most clinical parameters. A significant reduction of colony forming unit (CFU) of total bacteria number was observed in both groups. The highest reduction was noted in the experimental group immediately after the treatment. The number of dark pigmented bacteria and the percentage of patients with Porphyromonas gingivalis, Prevotella intermedia, and Actinobacillus actinomycetemcomitans reduced immediately after the treatment and returned to values close to the initial ones 6 weeks after the baseline for both groups. The Nd:YAG laser associated with conventional treatment promoted significant bacterial reduction in class II furcation immediately after irradiation, although this reduction was not observed 6 weeks after the baseline. |
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Keywords: | Periodontal diseases/therapy Bacterial reduction Nd:YAG laser |
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