Introduction: Many epidemiological studies have been conducted to determine the prevalence of the various types of the dental anomalies. The aim of the present study was determination of developmental and acquired dental anomalies in patients attending the faculty of dentistry in Rasht, Iran. Materials and Methods: In this retrospective cross-sectional study, 1224 digital panoramic ra-diographs...

Introduction: The number, size, shape, and structure of teeth in humans show very wide variation among different populations and sometimes within the same population. The aim of the present study was to determine the prevalence of developmental dental anomalies among patients attending the faculty of dentistry in Rasht, Iran over a period of seven months. Materials and methods: This cross-se...

Kleefstra syndrome (KS) is a rare genetic disorder ( prevalence < 1 / 000 ) characterised by autistic spectrum (ASD), childhood hypotonia, and seizures. A typical facial appearance includes microcephaly, arched eyebrows, synophrism, hypertelorism, short nose, ...

A tooth displaced down into alveolar bone is an intrusive luxation. This injury usually is accompanied by comminution of alveolar fracture. The dislocation is frequently axial and radiographic examination reveals absence of periodontal space. The primary site for luxation injuries is the maxillary anterior region in the primary and permanent dentition with frequency higher in the primary dentit...

Trauma to the primary incisors may, by their displacement, cause developmental disturbances in the root formation of the permanent incisors. To verify this hypothesis, dental radiographs of 34 children, whose primary incisors had been previously injured, were evaluated. Only 6 children showed disturbances in root development of maxillary permanent incisors. Three cases in which trauma to the pr...

INTRODUCTION Inverted tooth impaction is a rare occurrence. Third molar impaction is the most extensively studied, and only eight cases of inverted third molars have been reported in a literature search of 40 years from 1973 to 2013. In a study, 43.4% of the premaxillary supernumeraries were inverted and 21.1% were transversely oriented, while occasional inverted central incisors have been ment...

Aim The aim of the present study was to report the frequency of developmental disturbances in permanent teeth as a result of intrusive injuries to the primary predecessors and relate this to the degree of intrusion, the age of the child, the developmental stage of permanent germ and the treatment given. Methods Seventy children with previous intrusive trauma of their maxillary primary incisors ...

•In situ rotation surgery was performed for 2 inversely impacted maxillary incisors.•Incisor with dilacerated root spontaneously erupted after surgery.•For the in surgery, unfavorable positions were changed immediately.•Treatment durations greatly shortened.•The developing grew and maintained normal pulp vitality. Treatment of an incisor a is challenging clinicians because position incisor, abn...

Introduction: The aim of this study was to compare digital and conventional radiography in determining the working length of dilacerated canals.Methods: Thirty nine human extracted single-rooted teeth with root curvature more than 35 degrees were included in this study. After access preparation, a file was inserted into the canal and advanced until the file tip was visualized at the foramen. Wi...

introduction: many epidemiological studies have been conducted to determine the prevalence of the various types of the dental anomalies. the aim of the present study was determination of developmental and acquired dental anomalies in patients attending the faculty of dentistry in rasht, iran. materials and methods: in this retrospective cross-sectional study, 1224 digital panoramic ra-diographs...