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CO(2), Er: YAG and Nd:YAG lasers in endodontic surgery

OBJECTIVES: CO(2), Er:YAG and Nd:YAG lasers have been used in endodontic surgery. This in vitro study evaluated 1% Rhodamine B dye penetration using computer-assisted morphometry (ImageTool Software) of 108 endodontically treated human permanent canines. MATERIAL AND METHODS: Teeth were divided into 9 groups according to the technique used: A: 90-degree apicoectomy with bur, root-end cavity preparation with ul...

Analysis of the systemic effect of red and infrared laser therapy on wound repair

OBJECTIVE: To evaluate, using histological analysis, the systemic action and repair process of wounds produced on the back of rats and treated with red, infrared, or both lasers applied directly or indirectly to the wounds. BACKGROUND DATA: Skin tissue repair and wound healing are complex processes that involve a series of dynamic events. Many benefits are associated with biomodulation using laser therapy. ME...

Histologic study of the effect of laser therapy on bone repair

AIM: This study used histologic analysis and HE staining to evaluate laser biomodulation of bone repair in cavities made in the femurs of rats that underwent non-ablative laser irradiation. METHODS AND MATERIALS: Eighteen male Wistar rats weighing 300 to 400 grams were randomly assigned to three groups of six animals each. A surgical defect site was produced with a trephine about 2 mm in diameter under abundan...

Analgesic action of laser therapy (LLLT) in an animal model

OBJECTIVES: To evaluate the analgesic effect of laser therapy on healthy tissue of mice. STUDY DESIGN: Forty-five animals were divided in three groups of 15: A--infrared laser irradiation (830 nm, Kondortech, São Carlos, SP, Brazil); B--red laser irradiation (660 nm, Kondortech, São Carlos, SP, Brazil); C-- ham irradiation with laser unit off. After laser application, the mice remained immobilized for the inje...

Anchorage evaluation of dental implants irradiated with GaAIAs laser (830nm)

The aim of the present study was to evaluate titanium implants fixed with free rotation in rabbit’s tibia and irradiated with GaAlAs laser (4.3Joules/daily, 830nm wavelength, 12mW and 51 seconds) using a digital torquimeter. Thirty male rabbits were divided into two groups (Laser and Control) and subdivided according to their death day 15 (L1 and C1), 30 (L2 and C2) and 45 (L3 and C3) after surgery. A dig...

Análise da fusão dentinária promovida pelo laser Nd:YAG com e sem remoção do de...

Combined treatment by antibiotic therapy and surgery of chronic mandibular oste...

Chronic osteomyelitis of the mandible is usually a difficult pathology to resolve. Treatment has included long-term antibiotics, and surgical debridement, aggressive in some cases. This paper reports a 54-year-old female with an eight-month-mandibular chronic osteomyelitis who was successfully treated with the combination of medication and surgical intervention.

Estudo cefalométrico de valores normativos e dimorfismo sexual em brasileiros a...

The present study aimed to compare the averages measured for adults living in Passo Fundo/RS with the norms suggested by Tweed, and also to evaluate the sexual dimorphism in male and female samples. Twenty men (mean age 22,9 years) and twenty women (mean age 22,7 years) living in Passo Fundo/RS a city of the south at Brazil, were studied. The subjects were caucasians, had esthetically facial profile, complete p...

O Código de Ética da Odontologia Brasileira atende às modernas questões da rela...