Publicação: Effect of the Clinical Application of the GaA1As Laser in the Treatment of Dentine Hypersensitivity
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2003-10-01
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Objective: The aim of this study was to evaluate the effectiveness of the clinical use of the gallium-aluminum-arsenium (GaAlAs) laser at the maximum and minimum energies recommended by the manufacturer for the treatment of dentine hypersensitivity. Background Data: Dentine hypersensitivity (DH) is a response to a stimulus that would not usually cause pain in a healthy tooth. It is characterized by sharp pain of short duration from the denuded dentin. Its etiology is unknown. The dentin only begins to show sensitivity when exposed to the buccal environment. This exposure can result after removal of the enamel and/or dental cement, or after root denudation. Different treatments are proposed for this disorder. Materials and Methods: In this study, 25 patients, with a total number of 106 cases of DH, were treated with GaAlAs low-level laser therapy (LLLT). 65% of the teeth were premolars; 14% were incisors and molars; 6.6% were canines. The teeth were irradiated with 3 and 5 J/cm 2 for up to six sessions, with an interval of 72 h between each application, and they were evaluated initially, after each application, and at 15 and 60 days follow-up post-treatment. Results: The treatment was effective in 86.53% and 88.88% of the irradiated teeth, respectively, with the minimum and maximum energy recommended by the manufacturer. There was a statistically significant difference between DH and after a follow-up of 60 days for both groups. The difference among the energy maximum and minimum was not significant. Conclusion: The GaAlAs low-level laser was effective in reducing initial DH. A significant difference was found between initial values of hypersensitivity and after 60 days follow-up post-treatment. No significant difference was found between minimum (3 J/cm 2) and maximum (5 J/cm 2) applied energy.
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Dentine hypersensitivity, Dentistry, Gallium compounds, Irradiation, Patient treatment, Tooth enamel, Lasers, aluminum, arsenic, gallium, adolescent, adult, canine tooth, dentin, female, human, hypersensitivity, incisor, laser, low level laser therapy, major clinical study, male, molar tooth, premolar tooth, tooth root, treatment outcome, visual analog scale, Adolescent, Adult, Dentin Sensitivity, Dose-Response Relationship, Radiation, Female, Humans, Laser Therapy, Low-Level, Male, Middle Aged, Treatment Outcome
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Inglês
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Journal of Clinical Laser Medicine and Surgery, v. 21, n. 5, p. 291-296, 2003.
