Results: 1938

Evaluation of the efficacy of filling material removal and re-filling after different retreatment procedures

Abstract This study analyzed the influence of different retreatment protocols on amount of remaining filling material and amount of new sealer after endodontic retreatment. Forty mandibular molars with curved mesial roots were prepared with ProTaper Universal system, and filled with AH Plus sealer mixed ...

Comparative study of oral and salivary parameters in patients with and without loss of bone mass

Abstract Osteoporosis is an insidious and increasingly prevalent disease that can cause fractures and affect patients' quality of life. The current study comparatively evaluates patients with and without loss of bone mass in terms of salivary calcium, viscosity, and pH. A controlled cross-sectional study...

Accuracy of visual and image-based ICDAS criteria compared with a micro-CT gold standard for caries detection on occlusal surfaces

Abstract The aim of this study was to check the in vitro accuracy of ICDAS criteria on digital images compared to visual examination for the diagnosis of occlusal caries against a micro-CT gold standard. ICDAS was scored in 40 extracted permanent molars by means of visual inspection and stereomicroscopic...

Periodontal parameters in prediabetes, type 2 diabetes mellitus, and non-diabetic patients

Abstract The aim of the present study was to compare the clinical and radiographic periodontal parameters in prediabetes, type 2 diabetes mellitus (T2DM), and non-diabetic patients. Forty-one patients with prediabetes (Group 1), 43 patients with T2DM (Group 2), and 41 controls (Group 3) were included. De...

A novel ultrasonic tip for removal of filling material in flattened/oval-shaped root canals: a microCT study

Abstract The aim of this study was to evaluate the influence of a novel ultrasonic tip as an auxiliary method for removing filling material from flattened/oval-shaped canals. The null hypothesis tested was that this method does not influence removing the filling material in flattened/oval-shaped canals. ...

Serum paraoxonase, arylesterase, and glutathione-s-transferase activities and oxidative stress levels in patients with mushroom poisoning

Clinics; 73 (), 2018
OBJECTIVES: Consumption of toxic species of mushrooms may have detrimental effects and increase oxidative stress. Paraoxonase, arylesterase and glutathione-S-transferase are antioxidants that resist oxidative stress. In this study, we analyzed the changes in these enzymes during intoxication due to mushr...

Performance of the 13C-urea breath test for the diagnosis of H. pylori infection using a substrate synthesized in Brazil: A preliminary study

Clinics; 73 (), 2018
OBJECTIVE: The 13C-urea breath test is the main non-invasive test for the diagnosis of Helicobacter pylori infection. The availability of this test throughout the country is limited, mainly due to the difficulty in obtaining the labeled isotope from abroad. Recently, researchers from the Nuclear Energy C...

Applicability of a novel mathematical model for the prediction of adult height and age at menarche in girls with idiopathic central precocious puberty

Clinics; 73 (), 2018
OBJECTIVES: Unfavorable predicted adult height and psychosocial inadequacy represent parameters used to guide therapeutic intervention in girls with central precocious puberty. Gonadotropin-releasing hormone analog is the first-line treatment. The aim of this study was to compare two methods used to pred...

Is subjective sleep evaluation a good predictor for obstructive sleep apnea?

Clinics; 73 (), 2018
OBJECTIVE: To compare subjective sleep evaluation obtained using four questionnaires with polysomnography results for individuals with and without obstructive sleep apnea. METHODS: Observational and analytical study in which individuals underwent polysomnography were studied retrospectively to investiga...

Estimulação transcraniana por corrente contínua: estudo sobre respostas em tarefas de nomeação em afásicos

CoDAS; 30 (5), 2018
RESUMO Objetivo Comparar os resultados nas tarefas de nomeação de pacientes afásicos após AVC dos grupos ativo e controle. Método Estudo duplo-cego, randomizado controlado com 14 pacientes. Os indivíduos foram submetidos a cinco sessões de 20 minutos de 2 mA em dias consecutivos. O catodo foi ...