نتایج جستجو برای: deciduous dentition
تعداد نتایج: 29370 فیلتر نتایج به سال:
Failure of eruption of primary teeth can be considered rare, especially in maxillary anterior teeth. The problem can be either mechanical obstruction of eruption or a failure of the eruption mechanism. This case report presents failure of eruption of the maxillary right deciduous central incisor in a 4-year-old girl. The unerupted primary tooth was removed surgically. The histological finding r...
Developmental anomalies can occur as a result of conjoining or twinning defects. These include fusion, gemination and concrescence. Such anomalies occur more often in the deciduous than in the permanent dentition and only a few cases involving molar and premolar teeth have been reported in the literature. Cases of bilateral double teeth are less frequent than unilateral and prevalence seems to ...
BACKGROUND The aim of this study was to evaluate the efficacy of intensive application of sodium fluoride varnish in prevention of caries in molars in children between 6 and 7 years and to evaluate the caries status in molars before and after application of fluoride varnish (Cavity Shield). MATERIALS AND METHODS Two hundred fifty children (6-7 years) randomized into varnish and control groups...
BACKGROUND Traumatic dental injuries present complex injuries of the dentoalveolar system. Aim of this study was to investigate the frequency and patterns of traumatic dental injuries in a University dental emergency service over four years. METHODS A retrospective investigation on all dental trauma patients presenting at the dental emergency service of the University Medical Center Mainz, Ge...
BACKGROUND The aim of this randomised clinical trial was to assess the effect of early orthodontic treatment in contrast to normal growth effects for functional unilateral posterior crossbite in the late deciduous and early mixed dentition by means of three-dimensional digital model analysis. METHODS This randomised clinical trial was assessed to analyse the orthodontic treatment effects for ...
OBJECTIVE This study aimed at evaluating buccal and lingual bone plate changes caused by rapid maxillary expansion (RME) in the mixed dentition by means of computed tomography (CT). METHODS The sample comprised spiral CT exams taken from 22 mixed dentition patients from 6 to 9 years of age (mean age of 8.1 years) presenting constricted maxillary arch treated with Haas-type expanders. Patients...
AIM The purpose of this report is to present two cases of totally impacted maxillary deciduous molars, considered a rarity in dental practice. BACKGROUND Primary tooth impaction is quite rare during the development of primary dentition. Various factors contribute to the impaction of a deciduous tooth, including anklyosis, congenitally missing permanent teeth, defects in the periodontal membra...
epidermolysis bullosa (eb) is an inherited disorder, which is characteristically presented as skin blisters developing in response to minor injury. junctional variety of eb is also associated with enamel hypoplasia. amelogenesis imperfecta presents with abnormal formation of the enamel both in deciduous and permanent dentition. this article describes a previously unreported case of amelogenesis...
The objective of this study was to evaluate children's respiratory patterns in the mixed dentition, by means of acoustic rhinometry, and its relation to the upper arch width development. Fifty patients were examined, 25 females and 25 males with mean age of eight years and seven months. All of them were submitted to acoustic rhinometry and upper and lower arch impressions to obtain plaster mode...
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