Cleide Gisele Ribeiro

Dental implant rehabilitation of a patient with down syndrome: a case report.

Implant-supported rehabilitations show higher patient satisfaction when compared with conventional prostheses. Systemic conditions, however, can affect treatment planning of dental implant supported rehabilitations. The oral structures that are commonly affected in patients with Down syndrome include the tongue (macroglossia), teeth (number and shape), and poor quality alveolar and jaw bones (osteoporotic-like). This clinical case presents an interdisciplinary team approach aimed at achieving functional, phonetic, and esthetic outcomes in a patient with Down syndrome.

An Alternative Approach for Augmenting the Anterior Maxilla Using Autogenous Free Gingival Bone Graft for Implant Retained Prosthesis

Numerous factors may keep surgeons from placing implants in the anterior maxilla in order to avoid suboptimal restorative outcomes. This paper describes a technique of an autogenous-free gingival-bone block graft, which allows bone and gingival augmentation and a primary seal to be achieved simultaneously. Additionally, it describes a technique for achieving primary soft tissue closure of maxillary extraction sockets using a rotated pedicle palatal connective tissue flap.

Development of estimation models of bone height considering the potential presence of anterior extension of the mandibular canal.

Purpose:To evaluate the presence of the anterior extension (AE) of the mandibular canal and to measure the bone height (BH) at different points along the extension. Materials and Methods:Cone-beam computed tomography examinations of 108 patients were bilaterally evaluated regarding the presence of the AE, and linear measurements of the AE and BH were obtained. For comparisons between sides and genders, Student t test was applied. Variations in BH measurements were assessed by a 2-way analysis of variance. Through a simple linear regression analysis, formulas were determined for calculations of the BH in the AE. Results:A right AE was detected in 76.9% and left AE in 77.8% of the samples. In the majority of the cases, the extension was of the rectilinear type. The mean length of the AE was 8.5 mm, and there was no statistically significant difference observed in relation to gender or side. It was observed that the BH increases as it approaches the midline. Conclusion:The AE of the mandibular canal must be evaluated during presurgical planning. The formulae presented in this study provide a method to calculate BH values in the interforaminal region and can be used to assist in presurgical planning, especially in the cases in which the identification of the hipodense site, which corresponds to the AE, is not evident.

Three-dimensional analysis of impacted maxillary third molars: A cone-beam computed tomographic study of the position and depth of impaction

Purpose The classification of impacted maxillary third molars (IMTMs) facilitates interdisciplinary communication and helps estimate the degree of surgical difficulty. Thus, this study aimed to develop a 3-dimensional classification of the position and depth of impaction of IMTMs and to estimate their prevalence with respect to gender and age. Materials and Methods This cross-sectional retrospective study analyzed images in sagittal and coronal cone-beam computed tomography (CBCT) sections of 300 maxillary third molars. The proposed classification was based on 3 criteria: buccolingual position (buccal, lingual, or central), mesial-distal position (mesioangular, vertical, or distoangular), and depth of impaction (low, medium, or high). CBCT images of IMTMs were classified, and the associations of the classifications with gender and age were examined using analysis of variance with the Scheffé post-hoc test. To determine the associations among the 3 classifications, the chi-square test was used (P<.05). Results No significant association of the classifications with gender was observed. Age showed a significant relationship with depth of impaction (P=.0001) and mesial-distal position (P=.005). The most common positions were buccal (n=222), vertical (n=184), and low (n=124). Significant associations among the 3 tested classifications were observed. Conclusion CBCT enabled the evaluation of IMTMs in a 3-dimensional format, and we developed a proposal for a new classification of the position and depth of impaction of IMTMs.