RESUMO
ABSTRACT: The pigmented lesions of the oral cavity may be endogenous or exogenous. Endogenous lesions are benign and usually caused by melanin, and they are called gingival melanin pigmentations. Among the options for depigmenting these areas, laser therapy stands out for being a minimally invasive procedure. This study aims to report a clinical case of the gingival depigmentation technique using a high-power diode laser in the anterior maxillary region, for the ablation of the pigmented tissue to improve gingival aesthetics. The patient had an aesthetic complaint of the darkened aspect of the gingiva in the anterior maxillary and mandibular portions. After local anesthesia, we started depigmentation with high-power diode laser and performed ablation from the attached gingiva toward the free marginal gingiva. The patient returned after 30 and 180 days presenting healthy gingiva and absence of melanin repigmentation. Thus, we concluded that the diode laser was a good alternative for melanin depigmentation because it is a procedure with lower morbidity and satisfactory postoperative results.
RESUMEN: Las lesiones pigmentadas de la cavidad oral pueden ser endógenas o exógenas. Las endógenas son benignas y generalmente causadas por la melanina, denominándose pigmentaciones melánicas gingivales. Entre las opciones para la despigmentación de estas regiones, se destaca la laserterapia, por ser un procedimiento poco invasivo. Este trabajo tuvo como objetivo relatar un caso clínico de la técnica de despigmentación gingival utilizando láser de diodo de alta intensidad en la región anterior de los maxilares para ablación del tejido pigmentado con la finalidad de mejorar la estética gingival. El paciente presentaba como queja estética el aspecto oscurecido de la encía en la región anterior de la maxila y de la mandíbula. Tras aplicar anestesia local, se inició la despigmentación con láser de diodo de alta intensidad, siendo que la ablación se realizó a partir de la encía insertada hacia la encía marginal libre. El paciente regresó tras 30 y 180 días, presentando encía saludable y con ausencia de repigmentación melánica. Así fue posible concluir que el láser de diodo mostró ser una buena alternativa para la despigmentación melánica, ya que se presentó como un procedimiento con menor morbidad y buen resultado postoperatorio.
Assuntos
Humanos , Masculino , Adulto , Terapia a Laser/métodos , Lasers de Estado Sólido/uso terapêutico , Doenças da Gengiva/cirurgia , Melanose/cirurgia , Brasil , Técnicas Cosméticas/instrumentação , Consentimento Livre e EsclarecidoRESUMO
This study conducted a randomized clinical trial in 15 patients, who sought care at the Dental Clinic of the University of Passo Fundo, in order to compare the use of low-level laser and botulinum toxin in the treatment of myofascial pain and whether they alter the mouth opening of patients with temporomandibular disorder. The patients were divided into two groups: the Laser group received low-level GaAlAs laser, 100mW of power at a wavelength of 830nm in continuous light emission; and the Toxin group received 30U of botulinum toxin type A (BTX-A) in the first session, and 15U after fifteen days. The assessments were performed by measuring pain with Visual Analogue Scale (VAS), and mouth opening with a digital caliper. Data were submitted to Student's t test at 5% significance level. Regarding pain symptoms, the results indicate that groups treated with laser and toxin registered 7U in VAS, at day 5 the scores were 4.75 and 4.86U, respectively. The laser worked faster (day 12) at 2.75U, and the group treated with BTX-A registered 2.86U at day 30. Both therapies investigated were effective in reducing pain, but the effect of low-level laser was faster than the use of BTX-A. Both treatments showed no statistically significant improvement in mouth opening.