The variation of P3 in extant Ochotona of the alpina-hyperborea group is analyzed. An absence of sexual differences in the pattern of enamel loops of the tooth crown is observed. Dental variation is mainly accounted for by the size comp... А. А. Lissovsky,NV Serdyuk - 《Paleontological ...
Dentalafdaekning for use in manufacturing a ceramic-metal dental restoration, for example. a dental crown and dental crown with such dentalafdaekningA dental coping (10) for use in preparing a ceramo-metal dental restoration upon which a ceramic veneer is applied and fired comprising a metal ...
To determine whetherScarus spinuscould access theOstreobium-rich layer under live CCA crusts, we measured two variables: bite depth and CCA crust depth. Prior to scraping the bitecores for microscopy and DNA sampling, photographs of bite marks were taken with a Nikon Stereoscopic microscope (SMZ ...
Panoramic radiography is a tool widely used by dentists to establish the detailed overview of a person’s dental structure that constitutes a large number of anatomical structures made of the hyoid bone, maxillary sinuses, and the temporomandibular joint (TMJ) of an individual’s face. The technol...
To compare the exactness of simulated clinical impressions and stone replicas of crown preparations, using digitization and virtual three-dimensional analy... ASK Persson,A Odén,M Andersson,... - 《Dental Materials Official Publication of the Academy of Dental Materials》 被引量: 127发表: 2009年...
However, the greater number of microwear features in Palaeotherium, may result from a diet containing more abrasive material such as seeds from fruit. The additional evidence in Plagiolophus of crown cementum and a shallower occlusal angle, suggests that it may have eaten tougher but less ...
One of the major adaptation directions in mammoth evolution was the decrease in enamel thickness of dental plates, which at the same time was followed by increase of plate frequency and decrease of plate length of the molar crown. The observed morphological changes in molars were caused by ...
The hypodigm has been examined for evidence of intraspecific phyletic evolution, with particular emphasis on the areas best represented in the fossil record, namely the teeth and mandible. The results of this examination of 55 mandibular and dental variables which uses the gamma test statistic for ...
boisei sensu stricto hypodigm resemble the latter taxon in some features, but differ from it in aspects of cranial morphology. There is insufficient fossil evidence of the earlier taxon to tell whether it changes through time, but when trends of 47 mandibular and dental variables are assessed ...
It was found that molar crown formation times in bovids are highly correlated with gestation length once the effects of body mass have been removed. This differs from primates and indicates similarities in pre- and postnatal growth rates in these mammals. Closed-habitat species exhibit relatively ...