نتایج جستجو برای: dental anomaly
تعداد نتایج: 199327 فیلتر نتایج به سال:
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...
Canine transmigration is a very rare dental anomaly in which an unerupted mandibular canine migrates, crossing the mandibular midline. This unusual condition is most often diagnosed by chance during a routine X-ray examination. The most common clinical signs announcing the presence of this anomaly are over-retention of the deciduous canine and the absence of permanent canine from the dental arc...
Introdution: Dental anomalies are an important category of dental morphologic variations. Their incidence is different between many populations. This study aimed to determine the frequency of dental anomalies and dental health index in patients referred to department of Oral Medicine of Hamadan dental faculty in 2014 Methods: In this descriptive cross sectinal study 772 patients referred...
Background and objectives: Cleft lip palate deformity is one of the highly frequent most difficult problems arising in orthodontic clinics, associated with these deformities dental anomalies presented as defect number eruption process, this study aimed to find prevalence cleft patients Erbil city. Method: One hundred orthopantomograms out 167 examined by a well-trained orthodontist for presence...
taurodontism is a rare dental anomaly in which the involved tooth has an enlarged and elongated body and pulp chamber with apical displacement of the pulpal floor. endodontic treatment of these teeth is challenging, because it is hard to identify the number of root canals. in this article a case of bilateral involvement of maxillary first molars is presented. endodontic treatment of right maxil...
Gemination is defined as an attempt to make two teeth from one enamel organ. Bilateral presentation of this phenomenon is very rare, with prevalence of 0.01% to 0.04% in the primary, and 0.05% in the permanent dentition. This paper describes a rare case of huge bilateral gemination of permanent maxillary central incisors in a nine-year-old Iranian boy with poor aesthetic. The patient did not ha...
Talon cusp is a dental anomaly also known as an eagle's talon. It is an extra cusp on an anterior tooth which arises as a result of evagination on the surface of a crown before calcification has occurred. The exact etiology is unknown. The inci-dence of talon cusp is less than 6%. Commonly involved teeth are maxillary incisors, usually unilateral but in some instanc-es bilateral. The classical ...
Introduction: This study aimed to investigate the relationship between the prevalence of dental anomalies and hypodontia. Materials and Methods: In this retrospective study, the panoramic radiographs of 101 cases with tooth agenesis (except for the third molar) were studied and compared with [Pn1] those of a non-agenesis control group of 182 subjects. The subjects were within the age range of ...
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