Regional odontodysplasia (RO) is a rare nonhereditary developmental condition usually affecting maxilla and female patients. A few number of articles have used the cone beam computed tomography (CBCT) to describe imaging findings in RO. Thus, this article aims to report unusual imaging findings in a Brazilian child who presented with mandibular RO. A healthy 8-year-old boy was referred for evaluation of an anterior mandibular gingival enlargement. Radiographically, all right mandibular teeth showed wide pulp chambers and shortened roots with thin dentinal walls and open apices, featuring a “ghost teeth“ appearance, which indicated a diagnosis of RO. Missing teeth and altered radiopacity were observed. Cone beam computed tomography provided great insight into RO, allowing to identify gubernaculum tracts (GTs) associated with RO teeth. Fractal analysis of the bone surrounding RO teeth revealed an altered trabecular pattern.Clinical significanceThis case describes a rare developmental teeth-related pathology in a boy who showed unusual features on imaging exams. The CBCT provided the observation of RO tooth-related GTs, probably a new finding added to the international literature regarding RO, as well as the pulp chamber volume characterization of an affected tooth not published yet. In addition, it was observed an altered fractal pattern of the mandibular bone adjacent to RO teeth, which has not been described to date.How to cite this article: de Sa Cavalcante D, Fonteles CSR, Ribeiro TR, Kurita LM, Pimenta AVM, Carvalho FSR, Costa FWG. Mandibular Regional Odontodysplasia in an 8-year-old Boy showing Teeth Disorders, Gubernaculum Tracts, and Altered Bone Fractal Pattern. Int J Clin Pediatr Dent 2018;11(2):128-134.

Objectives: To summarize the evidence on the feasibility of maxillomandibular imaging exams-related fractal dimension (FD) in screening patients with osteoporosis. Methods: This registered systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses of Diagnostic Test Accuracy statement. High sensitivity search strategies were developed for six primary databases and grey literature. Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) items evaluated the risk of bias, and the GRADE approach assessed the evidence certainty. Results: From 1034 records initially identified through database searching, four studies were included (total sample of 747 patients [osteoporosis, 136; control group, 611]). The meta-analysis showed that the overall sensitivity and specificity of the FD were 86.17 and 72.68%, respectively. In general, all studies showed low RoB and applicability concern. The certainty of the evidence was very low to moderate. Conclusions: This systematic review showed that the jaw-related FD presented sensitivity and specificity values higher than 70%, and its sensitivity in osteoporosis screening was a better parameter than specificity.

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The present study aimed to analyze cephalometric predictors of abnormal sella turcica (ST) in Sheehan Syndrome (SS) patients. An observational case-control study was performed with SS volunteers from the Endocrinology and Diabetology Service of the Walter Cantídio University Hospital (Brazil). The sample was composed of 32 patients allocated in two groups: case group (16 adult women diagnosed with SS) and control group (16 healthy individuals matched by sex and age). Analyzes of the linear dimensions (length, diameter, and depth) of the ST on lateral teleradiographies were made using the Radiocef Studio 2 software. The morphological pattern (anterior oblique wall, double floor contour, bridged, irregularities of the dorsal face, pyramidal) was also assessed. The subjects mean age was 65.47 ± 10.19 years. SS patients had lower mean length (p <0.001), width (p <0.001) and height (p = 0.033) compared to the control group. The presence of morphological alteration of the ST was statistically significant (p = 0.009) compared to the controls. The most frequent morphological changes were irregularities of the dorsal face (37.5%; p = 0.018), oblique anterior wall (12.5%), double floor contour (6.3%), and bridged appearance (6.3%). Our study found smaller dimensions and morphological variations of ST in Brazilian SS individuals, highlighting the importance of ST-related imaging screening.

A utilização da termografia infravermelha (TI) vem se tornando uma ferramenta auxiliar no diagnóstico emonitoramento das intervenções terapêuticas, sendo um exame de imagem complementar na avaliação da temperatura corporal com base naemissão de radiação infravermelha através dos tecidos. O objetivo do presente trabalho é realizar uma revisão de literatura na aplicação da TI na endodontia. Para tal propósito foi realizado um levantamento na base de dados Pubmed, Google Scholar e Web Of Science com os descritores: “Thermography” AND “Endodontic” AND “Diagnostic” sendo encontrados 34 artigos dos últimos 10 anos, incluindo relatos de caso, ensaios clínicos e estudos in vitro, e excluídos revisões de literatura. Após a leitura de títulos e resumos foram selecionados 11 artigos. A revisão mostrou que as vantagens da termografia são inúmeras, entre elas a possiblidade de avaliar alterações do órgão dental e tecidos periféricos sem o uso de radiação ionizante, ideal para o controle de infecções. A endodontia tem explorado essa tecnologia para avaliar a vitalidade pulpar, pois a TI é capaz de detectar a reação inflamatória ainda durante a fase pré-clínica. Todavia, a utilização da TI ainda sofre algumas limitações: alta faixa de preço das câmeras de qualidade, a necessidade do estudo detalhado da técnica, pois sem ela há redução na resolução das imagens. Portanto, estudos que esclareçam a utilização da Termografia Infravermelha como vantajosa na endodontia, são fundamentais.