objectives: it is essential for clinicians to have adequate knowledge about root canal configurations; although its morphology varies largely in different ethnicities and even in different individuals with the same ethnic background. the current study aims to review the root canal configurations of mesiobuccal roots of maxillary first molars in an iranian population based on different epidemiol...

of maxillary molar extrusion in vertical facial development.1,2 Other reports followed,3-5 along with a cephalometric analysis centered around vertical diagnosis.6 Subsequent studies identified treatment modalities that could be used to control and, to a limited extent, reduce the vertical dimension during conventional orthodontic treatment. No investigator has published in this field as long a...

Caries is a tooth surface disease characterized by demineralization caused acids produced bacteria during the metabolism of sugar food. Molars are primary teeth that most prone to caries. One causes caries poor dental and oral hygiene. Preschoolers have lower awareness adherence hygiene, increasing risk The objective this study was examine description molars as well effect health education on h...

AIM The present report describes and discusses root canal variations in the internal morphology of maxillary molars. BACKGROUND Dental internal anatomy is directly related to all the technical stages of the endodontic treatment. Even though, in some situations a typical anatomical characteristics can be faced, and the professional should be able to identify them. CASE DESCRIPTIONS This clin...

OBJECTIVES The aim of this study was to determine the prevalence of root dilaceration in a Turkish dental patient population, considering factors such as dental localization and the relationship between the sexes in this anomaly. STUDY DESIGN A retrospective study was performed using periapical radiography of 2,124 patients, who ranged in age from 15 to 65 years old. All data (age, sex and sy...

OBJECTIVE To compare dentoalveolar and skeletal changes produced by the pendulum appliance (PA) and the distal screw appliance (DS) in Class II patients. METHODS Forty-three patients (19 men, 24 women) with Class II malocclusion were retrospectively selected for the study. Twenty-four patients (mean age, 12.2 ± 1.5 years) were treated with the PA, and 19 patients (mean age, 11.3 ± 1.9 years) ...

INTRODUCTION The aim of this study was to describe the canal shaping properties of a novel nickel-titanium instrument, the self-adjusting file (SAF), in maxillary molars. METHODS Twenty maxillary molars were scanned by using micro-computed tomography at 20-μm resolution. Canals were shaped with the SAF, which was operated with continuous irrigation in a handpiece that provided an in-and-out v...

The purpose of this study was to compare the effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors during leveling phase. Twenty-three subjects with Class I and Class II malocclusion were treated with first premolars extraction using preadjusted appliances (MBT 0.022-inch brackets). The leveling phase was performed with stainless ste...

OBJECTIVES The success of endodontic treatment is based on cleaning and shaping of the root canals. The root canals have complex morphology and wide individual variations. The objective of this study was to analyze root canals morphology and existence of extra canals in maxillary molars in Saudi subpopulation. METHODS Freshly extracted maxillary first molars (n=100) were included in this stud...

The purpose of this study was to determine if the surgical operating microscope and/or dental loupes could enhance the practitioner's ability to locate the second mesiobuccal canal (MB2) canal of maxillary molars in an in vivo, clinical setting. The participating endodontists documented 312 cases of root canal therapy on maxillary first and second molars. Participants that used the microscope o...