<div><p class="Body1"><strong>Objective</strong>: This <em>in vitro</em> study was to evaluate micro-strains around of implant, under the influence of angulations and vertical misfit in three-element implant-supported fixed partial dentures during axial loading by using strain gauge analysis. <strong>Materials and Methods</strong>: Three external hexagon implants with straight configuration and three external hexagon implants with angled (17°) configuration were inserted into two polyurethane blocks. To measure micro-strain, four strain gauges were bonded onto the surface of each block. Plastic copings were adapted to a standard wax pattern and cast. An axial load of 30 kgf was applied on the center of each implant for 10 seconds, using a load application device. The vertical misfit was measured at six different points by using a stereo microscope with 100-X magnification. <strong>Results:</strong> The results showed that the values for different implant angulations were significant (<em>P</em>= 0.0086). The Pearson’s correlation test between micro-strain and vertical misfit revealed no correlation between angled configuration (<em>P</em>= 0.891) and straight configuration (<em>P</em>= 0.568). <strong>Conclusion</strong>: The micro strain was higher for angled implants; no correlation was found between the vertical misfit and the micro strain values.</p></div>

The simplified fixed prosthesis evaluated presents biomechanical behavior similar to an anatomical prosthesis in the implants and in the surrounding bone structure.

The aim of the present study was to radiographically evaluate the effect of smoking on bone loss resulting from chronic periodontitis. Periapical radiographs were analyzed of 80 patients with chronic periodontitis (40 current or former smokers and 40 never-smokers) that attended a private periodontal practice. The smokers or former-smokers with a minimum consumption of 10 cigarettes/day for a period of over 10 years were selected. Interproximal radiographic bone loss was considered as the distance between the cementum-enamel junction and the alveolar bone crest. Bone loss for smokers was higher than that observed in never-smokers (p < 0.05) (3.33 +/- 1.09 mm and 2.24 +/- 0.76 mm; mean +/- standard deviation for smokers and non-smokers, respectively). When each region of the mouth was comparatively evaluated, it was observed that the smokers' incisors presented the highest bone loss when compared with the other groups of teeth (p < 0.01). Within the limits of the present investigation it can be concluded that smoking enhances the bone loss resulting from periodontitis and that the incisors are the teeth most affected.

Accurate color selection of direct or indirect dental restorations is a subjective task. Mobile phones are tools that may minimize color assessment errors. Objective: To use photographs taken with smartphones to guide the dental surgeon in choosing the right color in oral rehabilitation. Material and Methods: A tooth was photographed for color assessment and the VITA Toothguide 3D-MASTER® shade guide was used. Photographs were submitted to an image editing software for full saturation removal. Images of the tooth and scale in black and white were compared. Results: This method allowed to select the tooth’s value, which is considered the most subjective dimension in color choice. Conclusion: Although it is an auxiliary and complementary method to traditional methods, smartphones are tools capable of reducing the range of color possibilities and minimizing possible failures.KeywordsColor; Photograph; Smartphone.

Cem indivíduos com idades entre 18 e 25 anos, estudantes de Odontologia, não pacientes, foram entrevistados e examinados clinicamente com o objetivo de se avaliar a prevalência e o grau de severidade de Disfunção Craniomandibular. Para tal, foram utilizados índices que constam de avaliações subdivididas em três classificações diferentes: índice anamnético, disfunção clínica e oclusal, levando-se em consideração variáveis como sexo, faixa etária e o fato de terem sido submetidos, ou não, a tratamento ortodôntico. Os resultados obtidos mostraram que 42% dos indivíduos apresentaram sintomas subjetivos leves e nenhum indivíduo apresentou sintomas subjetivos severos. Dos indivíduos, 56% apresentaram algum índice de disfunção clínica, sendo 25% de grau médio ou severo. As mulheres apresentaram um índice mais elevado, com significância estatística. Dos indivíduos 66%, apresentaram um índice oclusal de grau leve e 11% de grau severo. O sexo, faixa etária e tratamento ortodôntico não mostraram diferenças significativas quanto à presença, ou não, de má oclusão.