Self-ear cleaning is the insertion of objects into the ear canal to clean it, a widespread practice that has the potential to compromise its integrity as a natural, selfcleansing mechanism, and a risk factor for possible injuries. The practice is common among young adults and highest in university than any other graduates. This study aimed to determine the self-ear cleaning practices and associ...

The aim of this study was to evaluate the influence of the flexion angle of files on the decentralization of root canals during instrumentation. Fifteen lower incisors were instrumented with Protaper Universal files and radiographed in two directions (mesiodistal and buccolingual) before and after instrumentation with a #15 K-file in position for evaluating the flexion angle of files. The speci...

Success in endodontics depends largely on the activity of the irrigation solutions used during canal cleaning and shaping. Sometimes the irrigation solutions should act deep within the dentin, particularly in cases of chronic infectious lesions, in which it has been found that germs can lodge in the depths of the dentinal tubules. The aim of this study was to compare the penetration of methylen...

INTRODUCTION Pulp revascularization may be considered a promising alternative for necrotic immature teeth. Many studies have accomplished passive decontamination associated with an antibiotic paste. To date, there is no report evaluating calcium hydroxide associated with 2% chlorhexidine gel for revascularization therapy. The aim of this case report was to describe a new proposal for pulp revas...

OBJECTIVE The objective was to evaluate the prevalence of human papillomavirus (HPV) in the anal canal of women with cervical intraepithelial neoplasia (CIN) grade III. STUDY DESIGN Two groups were compared. In group I (study group), 40 women who had undergone cervical biopsy with a histopathological result indicating CIN III were evaluated. Group II (control) consisted of 40 women with norma...

BACKGROUND CONTEXT Animals are commonly used to model the human spine for in vitro and in vivo experiments. Many studies have investigated similarities and differences between animals and humans in the lumbar and thoracic vertebrae. However, a quantitative anatomic comparison of calf, pig, and human cervical spines has not been reported. PURPOSE To compare fundamental structural similarities ...

Understanding the complexity of the root canal system and the aim to provide successful endodontic treatment has led to the development of newer techniques, instruments, and materials. These recent developments have greatly enhanced the clinician’s ability to achieve biologically-based objectives of root canal treatment. In order to achieve these objectives, it is imperative to accurately deter...

OBJECTIVE To compare the accuracy of radiography and computed tomography (CT) in predicting implant position in relation to the vertebral canal in the cervical and thoracolumbar vertebral column. STUDY DESIGN In vitro imaging and anatomic study. ANIMALS Medium-sized canine cadaver vertebral columns (n=12). METHODS Steinmann pins were inserted into cervical and thoracolumbar vertebrae base...

introduction: the aim of this study was to evaluate root canal anatomy of mandibular first molars (mfm) in a selected iranian population using clearing technique. methods and materials: a total of 150 extracted mfms were cleared. the root canal morphology (including the root numbers and root length) and the anatomy of the root canal system (including is the number and type of canals based on ve...