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Objective The aim of this study was to evaluate the effect of three different macrodesigns and two different insertion devices on the accuracy of static computer‐assisted implant surgery (sCAIS). Materials and Methods Ninety implant replicas with three different macrodesigns: Soft tissue level (TL), bone level (BL), and bone level tapered (BLT) were placed in 30 dental models with two implant insertion devices: Guided adapter and guided screwed‐in mount. Preoperative and postoperative positions of implants were compared and the mean angular deviation, crestal, and apical three‐dimensional (3D) deviation were calculated for each implant macrodesign and each insertion device. Data were analyzed using analysis of variance, post hoc t‐tests and Bonferroni‐Holm's adjustment method. P values less than .05 were considered statistically significant. Results BLT implants had lower mean 3D deviation values at the crest and the apex when compared with 3D deviations with BL and TL implants (P < .05). Also, BLT implants had lower angular deviations, when compared with BL and TL Implants, however, angular deviations were not statistically significant (P > .05). Considering the insertion device method, no significant differences were noted between insertion devices irrespective of the deviation analyzed. Conclusion The macrodesign of dental implants may have an influence on the accuracy of sCAIS, with tapered designs offering slightly better positional accuracy than parallel‐walled macrodesigns independent on the method of insertion used.

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Younger and educated females had better awareness of the association between periodontal diseases and PTLBW. Hence, efforts to educate the general female population on this association could contribute toward the reduction of the risk of PTLBW.

Although temporomandibular joint ankylosis is one of the most restrictive musculoskeletal disorder in the maxillofacial region, there is little information on the form and function of jaw muscles in this condition. This study evaluates thickness and cross-sectional areas of jaw elevator muscles and indicates that muscle hyperactivity might be associated with ankylosis, thereby providing a probable hypothesis on the etiopathogenesis of this condition.

Objectives: Fixed orthodontic appliances (FOAs) may cause a temporary deterioration of oral hygiene with corresponding gingival inflammatory changes. Optimal oral hygiene and dietary changes are essential in order to avoid periodontal inflammation. The present study investigates to what extent the recommendations made by the orthodontist are followed by young patients. Materials and methods:A total of 67 adolescent patients with FOA were examined and interviewed. The control group consisted of 70 patients of the same age who had not undergone any orthodontic treatment. A specific questionnaire (assessing dietary habits, oral hygiene measures) was used and comprehensive oral findings along with oral hygiene status were evaluated. Results:The analysis of the data showed that despite intensive oral hygiene and dietary advice in the patients with FOA, there was no change in diet or oral hygiene habits. There were significantly higher signs of gingival inflammation and amount of dental plaque in FOA patients. Nutritional recommendations and oral hygiene measures for young people with FOA were not adequately enforced. Conclusion:The findings indicate that frequent recalls should be scheduled with repeated reinforcement of oral hygiene and dietary modifications in FOA patients. Keywords

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