Cephalometric analysis of prediction tracings: A comparison of three different methods

The purpose of this study was to compare-using cephalometric analysis (McNamara, and Legan and Burstone)-prediction tracings performed using three different methods, that is, manual and using the Dentofacial Planner Plus and Dolphin Image computer programs, with postoperative outcomes. Pre- and postoperative (6 months after surgery) lateral cephalometric radiographs were selected from 25 long-faced patients treated with combined surgery. Prediction tracings were made with each method and compared cephalometrically with the postoperative results. This protocol was repeated once more for method error evaluation. Statistical analysis was made by ANOVA and the Tukey test. The results showed superior predictability when the manual method was applied (50% similarity to postoperative results), followed by Dentofacial Planner Plus (31.2%) and Dolphin Image (18.8%). The experimental condition suggests that the manual method provides greater accuracy, although the predictability of the digital methods proved quite satisfactory. © 2013 World Federation of Orthodontists.

Use of cone-beam tomography and digital subtraction radiography for diagnosis and evaluation of traumatized teeth treated with endodontic surgery and MTA. A case report

The aim of this paper was to report the diagnosis and evaluation of periradicular bone repair by using computed tomography and digital subtraction radiography in an endodontic surgery case treated with mineral trioxide aggregate (MTA). The patient had local swelling and fistula 7years after trauma in the upper jaw. Periapical lesion on tooth #12 and root resorption of tooth #11 were detected radiographically. Endodontic therapy and placement of intracanal medication were carried out. After 3months, with no improvement in the clinical signs and symptoms, computed tomography was performed, showing extensive apical bone resorption on tooth #12 and dental resorption promoting communication of the root canal with the periodontium of tooth #11. The patient was referred to endodontic surgery. After surgery and postoperative periods of 15, 30, 60, 90, and 120days, standardized radiographs were taken, digitized, and subjected to digital subtraction of the images using Adobe Photoshop CS software. Four years later, a cone-beam computed tomography was performed, showing bone repair and absence of root resorption at tooth #11. In this clinical case, digital subtraction radiography was effective for early detection of new bone formation and evolution of repair. © 2011 John Wiley & Sons A/S.

Age assessment based on dental calcification in individuals with Down syndrome

It is important to estimate both chronological age (CA) and maturational age of an individual, in order to perform orthopedic treatment or surgery, and in cases of lost documentation. Use of dental age (DA) for these purposes has been widely studied; however, the literature is scarce with regard to individuals with Down syndrome (DS), a prevalent condition worldwide. In this study the chronology of dental maturation was evaluated by analyzing the DA of individuals with DS based on the Chronological Mineralization Table proposed by Nolla (1960). Thus, second molars were evaluated in 57 panoramic radiographs of male and female individuals with DS, between 5 and 16 years-old. These data were compared with a control group of 191 nonsyndromic individuals of the same age group. Correlation between CA and DA was ascertained using Pearson's correlation coefficient (r), and the difference between these variables was measured using Student's t-test for paired samples and the method proposed by Bland and Altman. The difference between DA and CA was compared between the control and DS groups using Student's t-test for independent samples (α=0.05). DA was slightly lower than the CA; however, this difference was only significant for females. The difference between DA and CA was not significant between individuals with DS and control group (both genders, p=0.945; males, p=0.542; females, p=0.381). We concluded that dental maturation in individuals with DS occurs similarly to that of nonsyndromic individuals. © 2013 Elsevier Ltd.

Estudo radiográfico da espessura do esmalte nas faces proximais de dentes anteriores e posteriores

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Alterações cefalométricas do perfil facial decorrentes do crescimento natural e induzidas pelo aparelho de Herbst no tratamento da classe II divisão 1, em fase pré-puberal

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudos por imagem e físico dos membros pélvicos de pacas (Cuniculus paca) criadas em cativeiro

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Osso esponjoso liofilizado de cão utilizado como enxerto puro e associado a plasma rico em plaquetas ou medula óssea em falhas ósseas induzidas em coelhos: estudo experimental

Pós-graduação em Cirurgia Veterinária - FCAV

Pelvimetria radiográfica em diferentes raças de fêmeas caninas adultas (Canis familiaris-LINNAEUS, 1758)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Aspectos radiográficos e tomográficos de felinos (Felis catus - Linnaeus, 1775) adultos acometidos por rinite e sinusite

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação radiográfica da articulação coxofemoral em cães submetidos a exercícios físicos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Desempenho clínico da flurescência, imagens digitais ampliadas e ICDAS na detecção de cárie em superfícies oclusais

Pós-graduação em Ciências Odontológicas - FOAR

Comparação entre a capacidade de desobturação de canais radiculares obturados com cimentos à base de MTA, polímero da mamona e resina epóxica utilizando instrumento manual ou rotatório

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação das alterações radiográficas após tratamento endodôntico de dentes com lesão periapical empregando dois programas de interpretação de imagens

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise radiográfica, tomográfica e microscópica do desenvolvimento da lesão periapical em dentes de cães

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação da eficácia de remoção do material obturador do canal radicular: guta-percha versus real seal, usando duas diferentes técnicas de retratamento endodôntico

Pós-graduação em Odontologia Restauradora - ICT