To evaluate functional and periodontal aspects in patients with unilateral or bilateral congenitally missing maxillary lateral incisors, treated with either implants or space closure and tooth re-contouring. The sample consisted of 68 volunteers, divided into 3 groups: SCR - space closure and tooth re-contouring with composite resin (n = 26); SOI – implants placed in the area of agenesis (n = 20); and CG - control group (n = 22). A modified Helkimo questionnaire and the Research Diagnostic Criteria for Temporomandibular Disorders were used by a single, previously calibrated evaluator to assess signs and symptoms of temporomandibular joint disorder. The periodontal assessment involved the following aspects: plaque index, bleeding upon probing, pocket depth greater than 3 mm, gingival recession, abfraction, periodontal biotype and papilla index. The data were analyzed using Fisher's exact test and the nonparametric Mann-Whitney and Kruskal-Wallis tests (α=.05). No differences in periodontal status were found between treatments. None of the groups were associated with signs and symptoms of temporomandibular joint disorder. Both treatment alternatives for patients with congenitally missing maxillary lateral incisors were satisfactory and achieved functional and periodontal results similar to those of the control group.
Introduction: The present pilot study aims to compare the condylar translation between patients with hyperdivergent and hypodivergent facial pattern. Methods: after analysis of photographs and cephalometric data, sample obtained was divided into two groups: hyperdivergent (n = 12) and hypodivergent (n = 12). For evaluation of condylar translation, temporomandibular joint planigraphys with maximum mouth opening and maximum intercuspal were performed. Subsequently, the tracing of maximum mouth opening in the articulation of each planigraphy was carried out. Metric values were obtained from the measurement of the distance between the point in the lower region of the articular eminence and the point in the most anterior superior mandibular condyle. Results: no statistically significant differences were found between the groups compared. However, the values obtained for horizontal translation performed by the right mandibular condyle were 6.00 mm for the hyperdivergent group, and 3.25 mm in the hypodivergent group. For condyle on the opposite side the horizontal translation averages were 5.66 mm for the hyperdivergent group, and of 4.50 mm for the hypodivergent group. Conclusions: the divergence between the means suggests that hyperdivergent patients show higher condylar translation in both condyles when compared with hypodivergent patients. Further studies should be conducted aiming to elucidate the relationship among facial pattern, cortical thickness condylar and condylar translation.
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