Avaliação do uso do laser de baixa intensidade pelos cirurgiões dentistas na cidade de Salvador/BA / Assessment of the use of low intensity laser by dentists in the city of Salvador/ Bahia

Com o intuito de minimizar o desconforto, a inflamação, o edema e a dor durante e após procedimentos odontológicos, o laser de baixa intensidade (LBI) foi incorporado às diversas especialidades. Dentre elas, a patologia bucal, periodontia, disfunção temporomandibular (DTM) e dor orofacial, dentística e cirurgia e traumatologia bucomaxilofacial (CTBMF). O objetivo dessa pesquisa foi avaliar o uso do LBI nas diferentes especialidades odontológicas na cidade de Salvador/BA, no período de abril de 2015. Para isso, foi elaborado e aplicado um questionário autoexplicativo para 50 cirurgiões dentistas, sendo os resultados da pesquisa expressos em gráficos e valores percentuais. Dessa forma, observou-se que entre os cirurgiões dentistas que responderam ao questionário, apenas 10, ou seja, 20% fazem o uso do laser, sendo essa a amostra real do trabalho. De um modo geral, o laser foi mais utilizado para os tratamentos de hipersensibilidade dentinária e ulceração aftosa recorrente, com 61,53% nas duas situações; foi menos utilizado para cicatrização de bolsas periodontais após o tratamento convencional, com 7,69%. Em relação às especialidades, os maiores índices da utilização do LBI foram obtidos em cirurgia e traumatologia bucomaxilofacial, disfunção temporomandibular e dor orofacial. Esta prática integrativa e complementar ainda é escassa nos consultórios odontológicos, mesmo com os benefícios que o LBI vem proporcionando aos tratamentos. Cabe aos profissionais um estudo mais acurado e interesse em ampliar o conhecimento acerca do tema, com o intuito de ampliar a utilização de tal prática (AU).

In order to minimize discomfort, inflammation, swelling, and pain during and after dental procedures, low level laser therapy (LLLT) has been incorporated into various specialties. Among them are oral pathology, periodontics, temporomandibular disorder (TMD) and orofacial pain, dentistry and oral maxillofacial surgery and traumatology. The aim of this study was to evaluate the use of LLLT in different dental specialties in the city of Salvador, Bahia, in the period of April 2015. For this purpose a self-explanatory questionnaire was developed and applied to 50 dentists, and the research results expressed in graphics and percentages. It was observed that among the dentists who responded to the questionnaire, only 10, this is, 20% use the laser in their practice, being this actual research sample. In general, LLLT has been mostly used for dentinal hypersensitivity treatment and recurrent aphthous ulcerations, 61.53% in both cases; it was less used for periodontal pockets healing after conventional treatment with 7.69%. Regarding the specialties, the highest rates of LLLT use were obtained in surgery and oral maxillofacial traumatology, temporomandibular disorders and orofacial pain. This integrative and complementary practice is still scarce in the dental office, even with the benefits that the LLLT has been providing to treatments. It is up to professionals to carry on a more accurate study and to have interest in expanding their knowledge on the subject, in order to expand the use of such practice (AU).

Orthokeratinized odontogenic cyst: a report of two cases in the mandible / Cisto odontogênico ortoqueratinizado: relato de dois casos em mandíbula

PURPOSE: To describe the behavior clinical and pathological features of two cases of odontogenic cyst orthokeratinized. CASE DESCRIPTION: In case 1, a 17-year-old woman presented hard and painless swelling in the left posterior mandible. Radiographically, a radiolucent area with a radiopaque was observed. A clinical diagnosis of ameloblastoma or odontogenic keratocystic tumor was established. The histopathological examination revealed an orthokeratinized odontogenic cyst. In case 2, a 23-year-old woman presented a radiolucent lesion surrounded by radiopaque halo symmetrically distributed on both partially erupted lower third molars. A clinical diagnosis of bilateral dentigerous cyst (DC) was rended. The histopathological examination showed bilateral orthokeratinized odontogenic cyst. CONCLUSION: Orthokeratinized odontogenic cyst should be considered in the differential diagnosis of lesions occurring in the jawbones associated with an impacted tooth, particularly those cases simulating dentigerous cyst. In addition, we observed the importance of radiographs taken prior to orthodontic treatment as an important tool in the diagnosis of oral pathologies. Performing routine radiograph is of high clinical value, especially before orthodontic treatment.

OBJETIVO: Descrever os aspectos clinicopatológicos de dois casos de cisto odontogênico ortoqueratinizado e a compará-los a relatos anteriores. RELATO DO CASO: No caso 1, uma mulher de 17 anos de idade, apresentou edema endurecido e indolor na mandíbula posterior esquerda. Radiograficamente, uma área radiolúcida com uma radiopacidade foi observada. O diagnóstico clínico de ameloblastoma ou tumor odontogênico ceratocístico foi estabelecido. O exame histopatológico revelou um cisto odontogênico ortoqueratinizado. No caso 2, uma mulher de 23 anos apresentou duas lesões radiolúcidas circundadas por halos radiopacos simetricamente distribuídas, associada aos terceiros molares inferiores irrompidos. Um diagnóstico clínico de cisto dentígero bilateral (DC) foi estabelecido. O exame histopatológico mostrou ser um cisto odontogênico ortoqueratinizado. CONCLUSÃO: Cisto odontogênico ortoqueratinizado deve ser considerado no diagnóstico diferencial das lesões que ocorrem na mandíbula associado com dentes impactados, especialmente aqueles casos que simulem o cisto dentígero. Além disso, observamos a importância de tomadas radiográficas antes do tratamento ortodôntico no diagnóstico de patologias bucais.

Effect of LED phototherapy (λ700 ± 20 nm) on TGF-ß expression during wound healing: an immunohistochemical study in a rodent model.

OBJECTIVE: The aim of the present investigation was to evaluate transforming growth factor ß (TGF-ß) expression on cutaneous wounds in rodents treated or not treated with LED light. BACKGROUND: TGF-ß is a multifunctional cytokine that presents a central action during tissue repair. Although several studies both in vitro and in vivo have shown that LED phototherapy influences tissue repair, a full understanding of the mechanisms involved in its usage, such as in the modulation of some growth factors, remains unclear. MATERIALS AND METHODS: Under general anesthesia, 24 young adult male Wistar rats weighing 200-250 g had one excisional wound created on the dorsum of each, and were randomly distributed into two groups: G0 (Control) and G1 (LED, λ700 ± 20 nm, 16 mW, SAEF = 5 J/cm(2), Illuminated Area = 2 cm(2), 8 mWcm(2), 626 s) Each group was subdivided into three subgroups according to the animal death timing (2, 4, and 6 days). LED phototherapy started immediately after surgery and was repeated every other day during the experimental time. Following animal death, specimens were removed, routinely processed to wax, cut and immunomarked with polyclonal anti-TGF-ß, and underwent histological analysis by light microscopy. The mean area of expression of each group was calculated. The data were statistically analyzed using ANOVA and Tukey's test. RESULTS: The area of the expression of TGF-ß on LED-irradiated animals was significantly smaller than on controls at day 2 (p = 0.013). No significant difference was found at later times. It is concluded that the use of LED light, at these specific parameters, caused an inhibition of the expression of TGF-ß at an early stage of the healing process.