LASERS IN MEDICAL SCIENCE

Acesso restrito: Texto completo.Esthetics is an important factor for patients seeking orthodontic treatment, and not always is the orthodontist able to make adjustments on the gingival contour, and this aspect is neglected. Many orthodontists are familiar with the name laser. However, there is a lack of information regarding their application on the orthodontic practice. There are several options for the use of CO2 lasers on surgical procedures of interest to orthodontists, especially on soft tissues. There is no evidence that the use of the CO2 laser has any side effect or contraindication on surgical procedures. This paper reports a series of surgical procedures carried out on orthodontic patients. It is concluded that the carbon dioxide laser not only allows surgeons to enhance current surgical options for treatment but also have contributed to the evolution of a variety of new procedures that are now commonplace in oral surgery, and its use shows several benefits for the orthodontic patient

Revista Clínica de Ortodontia Dental Press

p. 54-58A presença de acessórios nos aparelhos ortodônticos fixos favorece o acúmulo de biofilme bacteriano. Além disso, a negligência com a higiene bucal, por parte dos pacientes, faz com que a hiperplasia gengival ocorra com freqüência. O tratamento desta, além da gengivectomia convencional, pode ser realizado com laser de dióxido de carbono. Por um lado, as vantagens do uso deste laser são: proporcionar uma excelente hemostasia, resultante do vedamento de pequenos vasos sangüíneos, possibilitando uma excelente visualização do campo operatório; diminuição da contração e formação de cicatrizes; redução do edema, da dor pós-operatória e da possibilidade de difusão de células anormais, devida ao vedamento de vasos linfáticos. Por outro lado, as desvantagens são o custo elevado, o tamanho do equipamento e a necessidade de pessoal especializado. Neste artigo, demonstrou-se as vantagens desta técnica na remoção de lesões de hiperplasia gengival em pacientes portadores de aparelho ortodôntico fixo

Dental Press Journal of Orthodontics

p. 1-6INTRODUCTION: Laser applications have increased in a variety of dental procedures, especially in surgeries of soft tissues. Radiation is not invasive and is very well tolerated by tissues. CO2 laser acts in small vessels promoting blood coagulation, making it possible to work in a controlled way. Patients undergoing fixed orthodontic therapy often present injuries of gingival hyperplasia, originating esthetical and functional problems. OBJECTIVE: This study aimed at evaluating the CO2 laser effectiveness in removal of hyperplasia lesions in gingival papilla regions of patients with fixed orthodontic appliances. For this, ten patients were chosen and in these 75 teeth with gingival hyperplasia were identified. Measures from the papilla to incisal edge were performed with the use of a digital caliper. Besides that, the individuals were submitted to previous examinations to the surgical procedure with laser: Full blood count, blood coagulation profile and fasting blood glucose. After this, patients were submitted to the surgery for lesion removal, carried out at the Laser Center of FOUFBA, utilizing a CO2 laser machine (Sharplan 20C, Tel Aviv, Israel). RESULTS: It was showed that laser provided a significant increase (p<0,001) in the distance from the papilla to the incisal edge of the teeth, with no tissue contraction, aspects which were maintained for over two months. CONCLUSION: It can be concluded that CO2 laser has proved to be effective in removal of papillary gingival hyperplasia lesions

Revista Dental Press de Ortodontia e Ortopedia Facial

P. 146-156,maio/jun.INTRODUÇÃO: os modelos de estudo são fundamentais no diagnóstico e planejamento do tratamento ortodôntico, uma vez que, através deles, pode-se visualizar os arcos dentários em três dimensões. Além de servirem de referência para avaliação da condução do tratamento nas mais diferentes fases, são considerados uma das formas de registro legal. OBJETIVO: este artigo apresenta uma técnica de recorte, acabamento e polimento de modelos ortodônticos.Maring

Photomedicine and Laser Surgery

p.214-219Objective: The present study aimed to assess the effect of the use of the CO2 iaser on the treatment of gingivai hyperpiasia in orthodontic patients wearing fixed appiiances. Background Data: Gingivai hyperpiasia is a condition very frequent in patients undergoing fixed orthodontic treatment. Amongst the treatments avaiiabie for this is the use of surgicai iasers. Methods: Ten patients entered this study and signed an informed consent. Seventy-five anterior teeth with gingivai hyperpiasia were seiected for iaser surgery. Prior to surgery, the iength of the crowns were measured using a digitai caiiper, and depth of the pocket was probed. The hyperpiasic gingivai was removed with a CO2 iaser under iocai anesthesia. immediateiy after surgery, measurement of the iength of the crowns and probing were carried out and were repeated. Results: The resuits were statisticaiiy anaiyzed and significant differences were detected regarding the iength of the crown (p = 0.000) and depth of the gingivai suicus (p = 0.000). Conclusion: it is conciuded that the use of the CO2 iaser was effective in the treatment of gingivai hyperpiasia

Effectiveness of CO2 laser in removal of papillary gingival hyperplasia

INTRODUCTION: Laser applications have increased in a variety of dental procedures, especially in surgeries of soft tissues. Radiation is not invasive and is very well tolerated by tissues. CO2 laser acts in small vessels promoting blood coagulation, making it possible to work in a controlled way. Patients undergoing fixed orthodontic therapy often present injuries of gingival hyperplasia, originating esthetical and functional problems. OBJECTIVE: This study aimed at evaluating the CO2 laser effectiveness in removal of hyperplasia lesions in gingival papilla regions of patients with fixed orthodontic appliances. For this, ten patients were chosen and in these 75 teeth with gingival hyperplasia were identified. Measures from the papilla to incisal edge were performed with the use of a digital caliper. Besides that, the individuals were submitted to previous examinations to the surgical procedure with laser: Full blood count, blood coagulation profile and fasting blood glucose. After this, patients were submitted to the surgery for lesion removal, carried out at the Laser Center of FOUFBA, utilizing a CO2 laser machine (Sharplan 20C, Tel Aviv, Israel). RESULTS: It was showed that laser provided a significant increase (p<0,001) in the distance from the papilla to the incisal edge of the teeth, with no tissue contraction, aspects which were maintained for over two months. CONCLUSION: It can be concluded that CO2 laser has proved to be effective in removal of papillary gingival hyperplasia lesions

Photomedicine and Laser Surgery

6 p.Objectives: The aim of this research was to investigate the influence of low-power laser on tooth movement in rats. Background: Tooth movement is closely related to the process of bone remodeling. The biologic result, with the application of a force to the tooth, is bone absorption on the pressure side and neoformation on the traction side of the alveolar bone. The laser photobiomodulation is capable of providing an increase in cellular metabolism, blood flow, and lymphatic drainage. Methods: Thirty young-adult male Wistar rats weighing between 250 and 300 g were divided into two groups, control and experimental, containing 15 animals each. The animals received orthodontic devices calibrated to release a force of 40 g/F, with the purpose of moving the first upper molar mesially. Low-intensity laser, wavelength 790 nm, was used in the experimental group; the dose was 4.5 J/ cm2 per point, mesial and distal, on the palatal side, 11 J/cm2 on the buccal side, and this procedure was repeated every 48 h, totaling nine applications. The active movement was clinically evaluated after 7, 13, and 19 days. Results and conclusion: The results showed no statistically significant difference, p¼0.079 (T0–T7), p¼0.597 (T7–T13), and p¼0.550 (T13–T19) between the laser and control groups on the amount of tooth movement in the different times evaluated. It may be concluded that laser phototherapy, with the parameters in the present study, did not significantly increase the amount of tooth displacement during induced orthodontic movement in rodents