نتایج جستجو برای: fused teeth
تعداد نتایج: 64655 فیلتر نتایج به سال:
As newly synthesized glycoproteins move through the secretory pathway, the asparagine-linked glycan (N-glycan) undergoes extensive modifications involving the sequential removal and addition of sugar residues. These modifications are critical for the proper assembly, quality control and transport of glycoproteins during biosynthesis. The importance of N-glycosylation is illustrated by a growing...
background: since there has been no published report on the impact of permanent canines in shiraz population, this study was conducted to investigate the prevalence and the location of the impacted permanent canines in patients referred to the department of radiology of shiraz dental school in 2012. materials and methods: this was an analytic cross-sectional study on 1012 panoramic radiographs....
a case of a compound odontoma which caused delayed eruption of right maxillary central incisor in a ten year old girl is presented with clinical and radiographic findings. the patient presented with complaint of a hard painless swelling in the right anterior region of the maxilla and absence of right maxillary central incisor. after clinical examination, periapical and occlusal radiographs of t...
Several studies have shown the possible applications of different types of lasers in dentistry clinics, as for example, in the inhibition of carious lesions (Stern et al., 1966, 1972; Yamada, 1996), as well as in their removal (White et al., 1993), in the oral mucous (Taylor et al., 1965), and in gum healing (Chomette et al., 1987), among others. The scanning electron microscope has shown the d...
The development of aesthetic and adhesive dentistry and the availability of reliable new dental materials have changed the daily practice of dentistry because these advances have led to more conservative cavity design and preservation of maximum sound dental tissues. The objective of this study is to compare the bond strength and microleakage of Compomer with Composite and Glass ionomer (conven...
Changes in tooth shape have played a major role in vertebrate evolution with modification of dentition allowing an organism to adapt to new feeding strategies. The current view is that molar teeth evolved from simple conical teeth, similar to canines, by progressive addition of extra "cones" to form progressively complex multicuspid crowns. Mammalian incisors, however, are neither conical nor m...
Aim: To investigate the prevalence of eight morphological and numerical anomalies in the southern Chinese permanent dentition and to compare these with studies from different populations. Materials and Methods: The material used in the study consisted of study models and panoramic radiographs collected from 725 randomly selected 12-year-old children (358 males and 367 females). The anomalies we...
Abstract A new species of Characidium is described from the tributaries rio Tocantinzinho, Tocantins basin, located in southern portion Chapada dos Veadeiros, at about 1,200 meters elevation, Goiás, Brazil. The can be diagnosed by an unusual combination two apomorphic features present distinct clades Characidium, presence a scaleless isthmus allied to with single row dentary teeth. Additionally...
The purpose of this study was to investigate the anatomical features of C-shaped root canal system in mandibular second molars using micro-computed tomography (microCT). Fifty-eight extracted mandibular second molars with fused roots were collected from a native Chinese population. The teeth were scanned into layers of 0.5-mm thickness by microCT and measurements were made at eleven levels. The...
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