OBJECTIVE To introduce and evaluate a novel approach in treating horizontally impacted mandibular second and third molars. MATERIALS AND METHODS An orthodontic technique was applied for treatment of horizontally impacted mandibular second and third molars, which included a push-type spring for rotation first, and then a cantilever for extrusion. There were 8 mandibular third molars (M3s) and ...

C-shaped canals are mostly found in mandibular second molars. Studies have shown that frequency ranges from 2.7 to 31%. This study was undertaken to provide further knowledge of the distribution of such canal anatomy, by determining the frequency of C-shaped canals in a sample representing the Lebanese population. Ninety-four mandibular second molars with scheduled endodontic treatment were exa...

OBJECTIVES Incomplete adaptation of stainless steel crown margins leads to microleakage. The aim of this study was to evaluate the effect of tooth preparation on microleakage of stainless steel crowns (SSCs) placed on mesiodistally reduced primary mandibular first molars. MATERIALS AND METHODS In this In vitro study, 60 primary mandibular first molars with reduced mesiodistal dimension were s...

INTRODUCTION Although lip bumpers (LBs) provide significant clinical gain of mandibular arch perimeter in mixed-dentition patients, orthodontists are reluctant to use them due to the possibility of permanent second molar eruptive disturbances. OBJECTIVE The present study was conducted to assess second molar impaction associated with the use of LBs, and to investigate how they can be solved. ...

AIM To evaluate the anatomical features of C-shaped canal systems in Chinese mandibular second molars by cone-beam computed tomography (CBCT). METHODOLOGY A total of 608 patients of Chinese descent with healthy, well-developed mandibular second molars were enrolled. These patients were referred to the West China Hospital of Stomatology and required radiographic examination by CBCT as part of ...

Introduction: There are dissenting opinions regarding the efficacy of prophylactic antimicrobial agents in third molar surgery. Objective: To determine: 1) The efficacy of a prophylactic antibiotic regimen compared with a chlorhexidine mouthwash in reducing postoperative infections in mandibular third molar surgery. 2) The pattern of presentation and the indications for extraction of mandibular...

AIM The aims of this study were to investigate the association between pericoronitis and the angular position, state of eruption, and the depth of impaction of mandibular third molars as well as to compare these findings with similar studies. METHODS AND MATERIALS A total of 242 patients ranging in age from 18 to 41 years of age suffering from pericoronitis were examined. Subjective and objec...

To investigate the commonly affected carious teeth in the early and late mixed dentition period of male and female orthodontic patients. A total of 224 (Male: Female ratio 118: 106) patients were diagnosed in the early mixed and late mixed dentition in 3 age subgroups; 6-7 years, 8-10 years and 11-13 years at the patients were investigated regarding carious lesions in the maxillary and mandibul...

course morphology analysing this in digital panoramic radiographs images. We used 603 digital images from panoramic radiographs. We selected only panoramic radiographs of fully dentate individuals, who had all lower molars bilaterally and with complete root formation. The sample distribution was determined by facial type and sex. The course of the mandibular canal, as seen in the panoramic radi...

introduction: the aim of this study was to evaluate the root canal morphology of mandibular first and second molars using cone-beam computed tomography (cbct) in northern iranian population and also to indicate the thinnest area around root canals. methods and materials: we evaluated cbct images of 154 first molars and 147 second molars. by evaluating three axial, sagittal and coronal planes of...