https://repositorio.ufba.br/handle/ri/1420 Sun, 03 May 2026 05:39:49 GMT 2026-05-03T05:39:49Z https://repositorio.ufba.br/handle/ri/17513 Título: Radicular dens invaginatus in a mandibular premolar: cone-beam computed tomography findings of a rare anomaly Autor(es): Neves, Frederico Sampaio; Pontual, Andréa dos Anjos; Campos, Paulo Sérgio Flores; Frazão, Marco Antônio Gomes; Almeida, Solange Maria de; Ramos Perez, Flávia Maria de Moraes Abstract: Dens invaginatus is a rare developmental anomaly and its etiology remains controversial. Radicular dens invaginatus is an unusual dental anomaly. The aims of this paper are to report the radiographic and tomographic findings of a case of radicular dens invaginatus and to discuss the relevant features associated with this dental anomaly. A 16-year-old female was referred to a private oral radiology clinic for orthodontic evaluation. Radiographically, a morphological alteration to the root portion of the right mandibular first premolar and the presence of a discrete radiolucent periapical lesion were observed. The diagnosis was only elucidated after cone-beam computed tomography (CBCT). The CBCT images revealed enlargement of the root, and a dilated invagination with limited enamel that had its open site along the lateral portion of the root without evidence of buccal and lingual expansion. The diagnosis of radicular dens invaginatus was then established. Tipo: Artigo de Periódico Tue, 01 Jan 2013 00:00:00 GMT https://repositorio.ufba.br/handle/ri/17513 2013-01-01T00:00:00Z https://repositorio.ufba.br/handle/ri/17512 Título: Density of mast cells and microvessels in minor salivary gland tumors Autor(es): Vidal, Manuela Torres Andion; Araújo, Iguaracyra Barreto de Oliveira; Gurgel, Clarissa Araújo Silva; Pereira, Francisco De Assis Caldas; Vilas Bôas, Deise Souza; Ramos, Eduardo Antônio Gonçalves; Agra, Ivan Marcelo Gonçalves; Gonçalves, Ivan Marcelo; Freitas, Valéria Souza; Santos, Jean Nunes dos Abstract: The aim of this study was to investigate the density of mast cells and microvessels in minor salivary gland tumors. Forty-one cases of minor salivary gland tumors (pleomorphic adenoma, n = 10; adenoid cystic carcinoma, n = 11; mucoepidermoid carcinoma, n = 10; and polymorphous low-grade adenocarcinoma) were investigated using immunohistochemistry for mast cell tryptase and von-Willebrand factor. Density of mast cells was higher in mucoepidermoid carcinoma; however, no differences in the number of these cells were observed between the different types of tumors (p > 0.05). The number of mast cells was higher in periparenchymal areas in all tumors, but the difference was not significant (p > 0.05). Mucoepidermoid carcinoma showed the largest number of periparenchymal mast cells, whereas pleomorphic adenomas showed the smallest number of intraparenchymal mast cells (p > 0.05). The highest microvessel density was observed in mucoepidermoid carcinomas, being this difference statistically significant when mucoepidermoid carcinoma was compared to pleomorphic adenoma (p = 0.0034) and polymorphous low-grade adenocarcinoma (p = 0.004). Microvessel density was significantly higher in adenoid cystic carcinoma when compared to pleomorphic adenoma (p = 0.0406) and polymorphous low-grade adenocarcinoma (p = 0.0123). Comparison of mast cells and microvessel densities showed no significant difference between tumors. A quantitative difference in mast cells and microvessels was observed, particularly in mucoepidermoid carcinoma, a finding supporting the aggressive behavior of malignant salivary gland tumors without myoepithelial differentiation. Further studies are needed to determine the role of mast cells in angiogenesis, as well as in the development and biological behavior of these tumors. Tipo: Artigo de Periódico Tue, 01 Jan 2013 00:00:00 GMT https://repositorio.ufba.br/handle/ri/17512 2013-01-01T00:00:00Z https://repositorio.ufba.br/handle/ri/16721 Título: Surgical prediction of skeletal and soft tissue changes in treatment of Class II Autor(es): Lira, Ana de Lourdes Sá de; Moura, Walter Leal de; Artese, Flávia; Bittencourt, Marcos Alan Vieira; Nojima, Lincoln Issamu Abstract: Introduction: The purpose of this study was to study the treatment outcomes and the accuracy of digital prediction and the actual postoperative outcome with Dolphin program on subjects presenting Class II malocclusions. Methods Forty patients underwent surgical mandibular advancement (Group 1) and 40 underwent combined surgery of mandibular advancement and maxillary impaction (Group 2). The available pre surgical (t1) and a minimum of 12 months post surgical (t2) cephalometric radiographs were digitized. Predictive cephalograms (t3) for both groups were traced. Results At all times evaluated, Group 1 displayed a shorter mandibular length and Group 2 had a longer lower face. In both groups the surgical interventions (t2) were greater than initially predicted. There was no significant difference between groups with regards to overjet, overbite and soft tissue measurements. Conclusions In both groups surgeries were more extensive than planned. Facial convexity and the distance of the lips to cranial base presented similar values between t2 (post surgical) and t3 (predicted). Tipo: Artigo de Periódico Tue, 01 Jan 2013 00:00:00 GMT https://repositorio.ufba.br/handle/ri/16721 2013-01-01T00:00:00Z https://repositorio.ufba.br/handle/ri/16663 Título: Brachycephalic, dolichocephalic and mesocephalic: is it appropriate to describe the face using skull patterns? Autor(es): Franco, Fernanda Catharino Menezes; Araújo, Telma Martins de; Vogel, Carlos Jorge; Quintão, Cátia Cardoso Abdo Abstract: The use of a standardized terminology in the medical sciences is essential for both clinical practice and scientific research. In addition to facilitating communication between professionals, it enhances the reliability of comparisons made between studies from different areas, thereby contributing to a higher level of scientific evidence. Examples of attempts made to standardize the terminology in other areas dedicated to the study of craniofacial morphology can be found in the literature. On the other hand, one can find in the orthodontic literature a variety of terms that render the consensus and communication between orthodontists and other researchers even more problematic. As an example, one could cite the use of the terms brachyfacial, mesofacial and dolichofacial, which form part of a cranial index terminology used to describe facial types. Thus, a reflection on the origin and differences of the terms used to describe the human facial phenotype may pave the way toward a consensus regarding the meaning that best represents the craniofacial patterns. Tipo: Artigo de Periódico Tue, 01 Jan 2013 00:00:00 GMT https://repositorio.ufba.br/handle/ri/16663 2013-01-01T00:00:00Z