ABSTRACT
O adenoma pleomórfico, que é uma neoplasia mista de glândula salivar, é uma morbidade relativamente comum. Apresenta prevalência dominante como neoplasia em glândula parótida, podendo acometer também glândulas salivares menores. É derivado de uma mistura de elementos ductais e mioepiteliais. O tumor geralmente é solitário e apresenta umcrescimento lento e indolor, como massa nodular única, independentedo sítio de origem. Quando intraoral é mais comum em palato duro e lábio superior, sendo relativamente incomum em mucosa jugal. Nesse trabalho, relata-se um caso clínico de adenoma pleomórfico em mucosa jugal, apresentando sete anos de evolução, com completa resolução após o tratamento cirúrgico conservador.
The pleomorphic adenoma, which is a mixed salivary gland neoplasm, is a relatively common disease. It has dominant prevalence such as neoplasm on parotid gland may also affect the minor salivary glands. It is derived from a mixture of ductal and myoepithelial elements. The tumor is usually solitary and presents a slow and pain less growth, being a single mass, independent of site of origin. When intraoral, it is more common onthe hard palate and upper lip. It is relatively uncommon on the buccal mucosa. In this paper, we report a case of pleomorphic adenoma in the buccal mucosa, with seven years of evolution, with complete resolution after conservatory surgical treatment.
ABSTRACT
Context: Osteoporosis is a skeletal disorder characterized by low bone mass and microarchitectural deterioration of bone tissue. It may affect the craniomaxillofacial complex and result in less bone-implant contact. Aims: The objective of this study was to measure the endosseous integration of titanium implants using the removal torque test in low-mineral density experimental animal models. Materials and Methods: Thirty female New Zealand white rabbits were divided into two groups: control (n=14), sham-operated; and test (n=16), ovariectomized. All animals received 2.2 mm Χ 4.0 mm titanium implants in the right tibia, 120 days after ovariectomy or sham surgery. Animals were killed at 7 and 14 weeks of postimplant insertion, when implants were removed by reverse torque rotation using a digital torque meter. Statistical analysis used was Student's t-test. Results and Conclusion: At the 7-week period, the mean torque values for the control and test groups were 11.6 Ncm and 10.4 Ncm, respectively, with no statistical significance. Implant removal torque analysis showed statistically lower values (P<0.05) for the test group at the 14-week period (control=16.7 Ncm and test=9.7 Ncm). The results of this study indicate that hormonal privacy compromise implants biomechanical performance.