نتایج جستجو برای: shape of teeth
تعداد نتایج: 21178229 فیلتر نتایج به سال:
In this paper, we propose a type of joint feature with geometric parameters and color moments to represent the speaking-mouth frames for image-based visual speech synthesis systems. Based on FDP around the mouth area, the geometric feature is obtained by computing Euclidean distances to describe the width of the speaking mouth, the height of the outer and inner lips and the distances between th...
objective: in comparison to clinical oral health indices, perceived oral health measures are less applied in large-scale epidemiological oral health studies in iran. the aim of this study was to measure perceived oral health among adults in tehran, iran. methods: in this cross-sectional study, perceived oral health was measured in 1100 adults in tehran by two measures: 1- non-replaced extracted...
Uncovering the origin and nature of phenotypic variation within species is the first step in understanding variation between species. Mouse models with altered activities of crucial signal pathways have highlighted many important genes and signal networks regulating the morphogenesis of complex structures, such as teeth. The detailed analyses of these models have indicated that the balanced act...
The normal and lateral line cycloid scales of a cyprinid fish Rutilus frisii kutum Kamenskii, 1901 have been subjected to scanning electron microscopy technique to study their detailed structure. The scales have the general morphological characteristics of the cycloid scales. In the normal scale located below the dorsal fin, the focus lies on the anterior region with few mucous pores. There is ...
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...
Mammalian tooth form reflects the material properties of foods. Much research has focused on relationships between aspects of dental morphology and diet. Understanding these relationships allows us to infer feeding adaptations from the teeth of fossil forms. Most such studies have focused on unworn (rather than worn) teeth because these are easier to characterize and compare among species. Neve...
The correct execution of teeth preparation for metal-ceramic crowns requires a certain range dental bores, different in shape and cutting properties. However, according to 2014 study, orthopedic dentists tend use reduced set burs their daily practice. research material is the results survey 59 urban clinics, obtained by questionnaire method. Data on frequency hogs various shapes grain size were...
3D Morphable models of the human body capture variations among subjects and are useful in reconstruction editing applications. Current dental use an explicit mesh scene representation model only teeth, ignoring gum. In this work, we present first parametric morphable for both teeth Our uses implicit is learned from rigidly aligned scans. It based on a component-wise each tooth gum, together wit...
In this paper, the authors present results obtained within a complex experimental program that focuses on determining tribological characteristics of active part (tungsten carbide tooth tip) cutter teeth asphalt milling equipment. The experiments are performedunderdifferent testing conditions (in dry environment and in water) to highlight need use water, when coating, with purpose reduce wear t...
Diversity-oriented synthesis of the biologically intriguing imidazo[1,2-a]pyridine-fused isoquinoline systems from readily available starting materials was achieved through the Groebke-Blackburn-Bienaymé reaction followed by a gold-catalyzed cyclization strategy. The synthetic approach is characterized by mild reaction conditions and a broad substrate scope, allowing for the rapid construction ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید