Periapical healing outcome following single visit endodontic treatment in patients with type 2 diabetes mellitus

The prevalence of apical periodontitis in diabetes mellitus patients is high. The altered immunity in diabetes affects the healing process of periapical tissue. Single visit endodontic treatment has shown to increase the periapical healing rate with better patient compliance. Hence the present study aims at evaluating the clinical and radiographic healing outcome of single visit endodontic treatment, in type 2 diabetes mellitus patients with periapical disease. Eighty patients with periapical disease were divided into 2 groups of 40 each: Group I, Control subjects and Group II, Type 2 diabetics. Glycosylated hemoglobin levels were assessed preoperatively and at follow up intervals in diabetics. Pre-operative assessment of periapical status was done using CPDR (Clinical periapical diagnosis of root), QLDR (Qualitative radiographic diagnosis of tooth) and QTDR (Quantitative radiographic diagnosis of tooth) criteria. Postoperative healing was evaluated following single-visit endodontic treatment by Strindberg criteria. Group 2 subjects had chronic and exacerbating lesions with significantly larger lesions (p=0.029). 100 % clinical healing outcome in diabetic group was seen in two months. Group 2 showed 85% success in one year on radiographic evaluation. Poor controlled diabetics showed failure compared to fair and good controlled. Type 2 diabetics had chronic and larger sized lesions when compared to control subjects. The periapical lesions in patients with poor diabetic control showed failure. The clinical and radiographic healing outcome of single visit endodontic therapy was delayed in diabetic patients

Evaluation of Lamendin’s age-at-death estimation method in a documented osteological collection (La Plata, Argentina)

Age estimation is one of the main biological parameters to be determined for constructing an individual biologicalprofile. In contexts where bones are poorly preserved, the use of teeth becomes relevant. Translucency of dentine has become relevant in recent decades, since the publication of the method proposed by Lamendin et al. (1992). In the local context, studies validating age-estimation methods from the permanent dentition are lacking. For this reason, it was decided to evaluate the performance of the age-estimation method proposed by Lamendin et al. (1992) in a sample of adult individuals with documented age belonging to the Lambre collection from the Municipal Cemetery of the city of La Plata. It was found that estimated age according to Lamendin et al.?s (1992) method varies by tooth type and age, being age the one that influences the estimates the most. On the other hand, sex has no influence in the estimation of age. The results showed no differences in the estimation in individuals between 35?50 years old, whileexhibiting a tendency to overestimate age in young adults and to underestimate it in older ones.Fil: Garizoain, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Médicas. Departamento de Ciencias Morfológicas. Cátedra de Citología y Embriología A; ArgentinaFil: Petrone, Selene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Médicas. Departamento de Ciencias Morfológicas. Cátedra de Citología y Embriología A; ArgentinaFil: Plischuk, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Médicas. Departamento de Ciencias Morfológicas. Cátedra de Citología y Embriología A; ArgentinaFil: Inda, Ana María. Universidad Nacional de La Plata. Facultad de Ciencias Médicas. Departamento de Ciencias Morfológicas. Cátedra de Citología y Embriología A; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: García, Marcela Nilda. Universidad Nacional de La Plata. Facultad de Ciencias Médicas. Departamento de Ciencias Morfológicas. Cátedra de Citología y Embriología A; Argentin

Evaluation of dentists’ knowledge of the use of oral exfoliative cytology in clinical practice

Oral exfoliative cytology (EC) is a rapid and practical complementary test that can be used in the diagnosis of various diseases. The objectives of this study were to assess dentists'knowledge of EC and to disseminate information on the technique. The study included 240 dentists from the city of Anapolis (Goias, Brazil) who answered a questionnaire regarding demographic data and data relating to EC and who then received information on the technique. The data revealed that 26.92% of the dentists did not know about EC. Among those who reported knowledge of EC, 33.91% did not know the procedures for performing the technique, and 85.38% had no experience with EC. In addition, 54.09% of the answers regarding the instrument used to collect the material and 56.82% of the answers concerning suitable fixatives were inappropriate. Although 73.02% of the dentists adequately identified the pathologies for which EC is recommended, it was concluded that the respondents had poor knowledge of EC. There is a need to increase dentists'awareness of this subject and of EC's use in diagnostic practices.Universidade de Taubaté, Departamento de OdontologiaUniversidade Estadual Paulista, Departamento de Biociências e Diagnóstico Bucal, Instituto de Ciência e Tecnologia de São José dos Campo

A visual complexity learning algorithm for modelling human performance in visual cognitive tests

Visual complexity has been extensively studied in the mathematical, computational sciences. Concurrently, psychological studies have attempted to de ne visual complexity as perceived by humans. The problem lies in that the computational and psychological studies are always explored separately, and thus their de nitions of visual complexity are disjointed. This is evident when attempting to capture human-perceived complexity through computer vision. This research attempts to tackle this problem in the context of cognitive assessments. This context introduces a practical application to the general question of computer, and human perception of complexity: Computerized cognitive assessments regularly employ visual stimuli, and present tasks that test a subject's primal cognitive functions. The di culty of these tasks is not objectively quanti ed, which reduces the e ciency of the tests' administration, and the accuracy of the results' interpretation. This study developed and examined an algorithm that could computationally predict a visual task's humanperceived complexity. The algorithm used a database of visual tasks and subjects' performance in terms of response times. Human subjective evaluation of tasks' complexity were captured for a subset of these tasks. Two types of feature sets were extracted from the visual stimuli presented in the tasks: object-speci c, and whole image features. Several classi ers were implemented, using the features and the subjects' perceived visual complexity labels. The best algorithm con guration yielded a 58 % prediction, for a three-class complexity scale. An analysis of the performance of the algorithm, and the relative visual features' importance values, provided insights which could help bridge the gap between mathematical complexity, and human perceived complexityMT 202

Primary intraosseous carcinoma of mandible: A case report

Primary de novo intraosseous carcinoma is a rare neoplastic lesion which commonly occurs in the jaws. It is an epithelial odontogenic malignancy arising from odontogenic epithelial residues in the bone rather than from a preexisting epithelial lesion. In the present case report, the clinical, radiological and histological features of primary de novo intraosseous carcinoma are discussed and its aggressiveness and local invasiveness are highlighted