نتایج جستجو برای: teeth morphology
تعداد نتایج: 180826 فیلتر نتایج به سال:
Dental anatomy is the study of morphology of various teeth in human dentitions. The application of dental anatomy in clinical practice is important, and dentist should have a thorough knowledge regarding the morphology of the teeth. At times as a result of genetic variation, environmental factors, diet of an individual and race, variations in the morphology of the teeth can be observed. These v...
The presence of supernumerary teeth (ST) is a dental developmental anomaly of patterning and morphogenesis. Its variability of morphology, location and developmental timing can shed light on its etiology. In this work we report ST patterns. Orthopantomograms of 1,166 pediatric subjects were examined and the morphology, location and timing of the formation of ST were determined. The frequency of...
the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...
OBJECTIVE The objectives of the present study were to investigate the prevalence and characteristics of supernumerary teeth in a patient sample of Nepalese children. STUDY DESIGN A survey was performed on 2684 patients (1829 females and 1035 males) ranging in age from 6 to 14 for the presence of supernumerary teeth. For each patient with supernumerary teeth the demographic variables (age and ...
Retreatment is common in endodontics. The purpose of this article was to classify the different clinical situations encountered in retreatment cases and relate them to the outcome after an observation period of 24 months. A total of 425 patients (452 teeth) from 451 patients, consecutively admitted for root-canal retreatment, were monitored during a 24-month period. All teeth (254 molars, 107 p...
to evaluate the interfacial morphology and the bond strength produced by the three-step, two-step and single-step bonding systems in primary teeth.occlusal surfaces of 72 extracted human deciduous teeth were ground to expose the dentin. the teeth were divided into four groups: (a) scotchbond multipurpose (3m, espe), (b) adh se (vivadent), (d) optibond all-in-one (kerr) and (e)futurabond nr (voc...
background successful endodontic treatment is dependent on the knowledge of root canal anatomy. objectives this study aims to investigate the root canal anatomy of mandibular first molars in an iranian population. materials and methods one hundred human mandibular first molars were collected and stored in 5.25% naocl. radiographic images of the teeth were taken in mesial, distal, and buccal asp...
BACKGROUND Supernumerary teeth are developmental anomaly. There are various theories explaining their occurrence. Maxilla is more commonly affected and males have higher predilection than females for having supernumerary teeth. CASE DETAILS The present case is presented with three permanent central incisors, all of them with normal morphology. On clinical and radiographic examination, it was ...
BACKGROUND AND AIMS A through knowledge of the root canal morphology is required for successful endodontic ther-apy. The aim of this study was to investigate the root and canal morphology of mandibular third molars in Kerman, a prov-ince in southeast of Iran. MATERIALS AND METHODS One-hundred-fifty extracted mandibular third molars were collected randomly from different dental clinics in Kerm...
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