Avaliação clínica e histológica dos efeitos do laser de baixa potência (GaAIAs) na cicatrização de gengivoplastia em humanos / CLINICAL AND HISTOLOGICAL EVALUATION OF THE EFFECTS OF LOW-LEVEL LASER (GaAlAs) ON WOUND HEALING FOLLOWING GINGIVECTOMY IN HUMANS

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

The main goal of this research was to clinically and histologically evaluate the effects of Aluminum Gallium Arsenate laser – 670nm in acceleration of wound healing after gingivoplasty in 13 patients. After surgery the right side of the patient (test group), received a laser dose of 4J/cm², in 48-hour intervals, during one week, totalizing 4 sessions. The left side (control group) did not receive irradiation. Five blind observers evaluated the clinical aspect of wound healing through photography of the treated areas at post surgical periods of 7, 14, 21, 30, 60 days. There was a tendenc y of choosing sometimes one side, sometimes the other as better healed until 21 days, and for the following periods both sides were considered equal. For histological analysis, incisional biopsies were performed on the mesial papilla of canines on both sides. Specimens were taken at 7, 14, 21 and 60 days post surgically. Morphometric analysis was carried out at epithelium and connective tissue and revealed normal healing parameters for both sides. For clinical evaluation the Sign and Kappa tests were used as statistical analysis. There was little agreement between examiners (mean Kappa values of 0,17 to 0,36). For the morphometric study, differences between the control group and experimental group were analyzed using the Student’s paired t-test with a confidence interval of 5% (p<0,05). The results obtained did not show statistically significant differences between the groups suggesting that clinically and histologically the laser therapy did not influence the healing of oral mucosa.

ASSUNTO(S)

cicatrização laser gengivoplastia

ACESSO AO ARTIGO

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