Search

This case report presents the clinical features and periodontal findings in a patient with a horizontally impacted maxillary central incisor that had been exposed and aligned after a closed-eruption surgical technique. By combining 3 treatment stages-maxillary expansion, crown exposure surgery, and induced eruption-the horizontally impacted incisor was successfully moved into proper position. The patient finished treatment with a normal and stable occlusion between the maxillary and mandibular arches, and an adequate width of attached gingiva, even in the area surrounding the crown. The 5-year follow-up of stability and periodontal health demonstrated esthetic and functional outcomes after orthodontically induced tooth eruption. Clinical evaluation showed that the treated central incisor had periodontal clinical variables related to visible plaque, bleeding on probing, width of attached gingiva, and crown length that resembled the contralateral incisor.

This study evaluated the effect of low-level infrared laser on removal torque values of implants with poor initial stability inserted in rabbit tibias.It is important to analyze the effects of laser radiation on bone repair when low-quality bone and implants with poor initial stability are used.Thirty male white New Zealand rabbits (Oryctolagus Cuniculus) about 2 mo old and weighing 1.5-2.0 kg were used. Machined implants with poor initial stability were inserted in the tibia of each animal. Animals were randomly divided into two groups: laser irradiated and laser nonirradiated. Each group was further divided into three subgroups, according to the day the animals were killed: 15, 30, or 45 d. Torque values were measured with an axial digital torquemeter that applied counter-torque. The Student's t-test was used to calculate means and standard deviations for the comparisons between laser and control groups.A significant increase (p = 0.050) in removal torque values was found in the group of laser-irradiated implants at 15 and 30 d when compared with the control groups. At 45 d, no significant differences were found.In this study, low-level laser therapy promoted the osseointegration of implants with poor initial stability, particularly in the initial stages of bone healing.

The surgical treatment of impacted teeth, especially the third molars, is one of the most usual surgeries in dental offices. The locati¬on of the incisions and the choice of the kind of flap for these kinds of surgeries are deter¬mined according to the desired access and related anatomic structures. The aim of this study was to compare the angled incisions with mesial relieving or dis¬tal relieving of the second molar, the envelo¬pe incisions and the "V" incision, in relation to healing, wound dehiscences and indicati¬ons. Thirty-four patients who had the lower third molars impacted were assisted. The patients were divided in four groups, according to the different flaps. At the end of the studies, it was observed that the degree of impact influences on the kind of flap chosen., O tratamento cirúrgico de dentes retidos, especialmente os terceiros molares, é uma das atividades cirúrgicas realizadas com maior freqüência nos consultórios odontológicos. A localização das incisões e a escolha do tipo de retalho são determinadas em função do acesso desejado e das estruturas anatômicas relacionadas. O objetivo do presente trabalho foi comparar quanto à cicatrização, deiscência de sutura e indicações, as incisões angulares com relaxante na mesial do segundo molar ou na distal do segundo molar, a incisão em envelope e a incisão em V. Foram atendidos 34 pacientes que possuíam terceiros molares inferiores retidos. Os pacientes foram divididos nos quatro grupos de diferentes retalhos. Ao final do estudo, observou-se que o grau de retenção influencia no tipo de retalho escolhido.