introduction: dental trauma is a very significant problem in primary dentition. it has a physical, esthetic and psychological impact on the child and his/her parents. the purpose of this study was to assess the prevalence of traumatic inju ries to the anterior primary teeth and deter mining factors in 2-5-year-old children in rasht, 2012. materials and methods: this research was a cross-section...

single rooted primary mandibular first molar is a rare developmental anomaly. literatures reveal that failure of invagination of hertwig's epithelial root sheath leads to this unusual root form. thorough knowledge of root canal morphology and anatomical variations of primary teeth can help a pediatric dentist in successful root canal treatment. hereby, we describe two cases of primary mandibula...

objective: taurodontism is a dental anomaly characterized by elongation of root body and apical displacement of the pulp chamber floor associated with shortening of roots and their narrowing at the cementoenamel junction (cej). due to having a dilated apical one-third, these teeth may cause complications during extraction, locating canal orifices and instrumentation. this study aimed to assess ...

OBJECTIVES The purpose of the present study was to evaluate mandibular talon cusps distribution from the comprehensive literature search and proposal of new classification Material and Methods: The study was a review of articles published in the English language from January 1960 to December 2013. The PubMed/MEDLINE/Google Scholor databases were searched electronically using 'talon cusp', 'dens...

introduction: the objective of this study was to gather information about normal occlusion and arch dimensions in the primary teeth of the children belonging to an iranian population. methods: this descriptive cross-sectional study was performed on 68 children from the city of mashhad in the 3-5 age range. dental arch dimensions, interrelationships of primary canine and second molars, overbite ...

background and aims. predicting the teeth eruption time is a valuable tool in pediatric dentistry since it can affects scheduling dental and orthodontic treatments. this study investigated the relationship between the eruption time of first primary and permanent teeth and the variation in the eruption time considering socioeconomic status (ses) in a 9-year population- based cohort study. materi...

background and aims. the objectives of the present study were to investigate the prevalence and the position of enamel defects of primary teeth and hence to estimate the approximate time of an insult. material and methods. 121 children aged 3 to 5 years were included in the study. the modified developmental defects of enamel index was used to diagnose and classify the defects. the defects were ...

although the delayed exfoliation of primary teeth among children is a common dental problem, simultaneous presence of primary teeth and corresponding successors is a rare feature in adults. this paper reports an unusual case in which both permanent teeth (molars, premolars, and canines) and primary teeth were present simultaneously. this report describes questions concerning the etiology of ove...

dentinogenesis imperfecta (di) is a hereditary dentin defect caused by an autosomal dominant mutation in dentin sialophosphoprotein gene. defective dentin development results in discolored teeth that are prone to wear and fracture. early diagnosis and proper treatment are necessary to achieve better functional and esthetic results and minimize nutritional deficiencies and psychosocial distress....