نتایج جستجو برای: shape of teeth
تعداد نتایج: 21178229 فیلتر نتایج به سال:
this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...
Dentinal dysplasia type 1 is a rare herediatary disease which is attributed to an automosal dominant trait. It's incidence is about 1: 100.000. Both dentition are affected with, although the involved teeth have a normal size, shape and consistency, and they are occasionally amber. The most common clinical feature, due to their extreme mobility, is malalignement and malpositioning of teeth. Such...
Sea urchins (Echinodermata: Echinoidea) generally possess an intricate jaw apparatus that incorporates five teeth. Although echinoid teeth consist of calcite, their complex internal design results in biomechanical properties far superior to those of inorganic forms of the constituent material. While the individual elements (or microstructure) of echinoid teeth provide general insight into proce...
OBJECTIVES To investigate the prevalence , gender difference , arch , morphology and position within the arch of supernumerary molar (SM) teeth in a referred Italian Caucasian population. STUDY DESIGN Records of 25,186 young patients were evaluated. Only data related to supernumerary teeth in the posterior region of the jaws were analyzed. The diagnosis of hyperdontia was formulated during th...
Background and Aims: Re-application of microbrush may affect the micro tensile bond strength of adhesives to dentin. The aim of this study was to evaluate the effect of re-application of microbrushes on the micro tensile bond strength of an adhesive to dentin.Materials and Methods: Thirty freshly extracted molars teeth were collected and enamel of occlusal surface were removed to expose superfi...
background & aim: regional odonto dysplasia (rod) is an unusual nonhereditary of teeth with significantly clinical and radiographic features. affected teeth usually remain unerupted or semi-erupted with a discolaration and irregular shape. radiographically these teeth have a large pulp chamber and thin layer of enamel and dentin with similar density. this article is introducing a female patient...
899 Abstract The maxillary stylets and maxillary palps of three species of mosquitoes belonging to genus Anopheles, viz., Anopheles culicifacies Giles, Anopheles fluviatilis James Anopheles subpictus Grassi have been studied using scanning electron microscope. The studies reveal the presence of lateral teeth and absence of mesial teeth on the maxillary stylets. The number, shape and size of lat...
Introduction: Physical attraction has a significant effect on all aspects of personal life, and in this category facial appearance is the most important part of the body in prediction of attractiveness. In the face, mouth and specially shape and size of anterior teeth is important to gain dental and facial esthetic. The aim of this study is evaluation of golden proportion from orthodontic view ...
Background: The study was to evaluate the eff ect of Wave One fi le system s and One Shape fi le system on the dentine thickness in the apical area of the root canal. Materials and Methods: In this study, a total of 40 freshly extracted human mandibular fi rst molars were taken. All the teeth were categorized into two groups namely Group I: Wave One, Group II: One Shape. Mesio buccal canal of m...
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