نتایج جستجو برای: shape of teeth

تعداد نتایج: 21178229  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
Peter S Ungar Francis M'Kirera

Worn teeth are a bane to paleobiologists interested in the diets of human ancestors and other fossil primates. Although worn teeth dominate fossil assemblages, their shapes are usually not used to reconstruct the diets of extinct species. The problem is that traditional studies of primate dental functional anatomy have focused on unworn morphology. This has limited most functional analyses to o...

Journal: :Physiological and biochemical zoology : PBZ 2009
Daniel R Huber Julien M Claes Jérôme Mallefet Anthony Herrel

As top predators in many oceanic communities, sharks are known to eat large prey and are supposedly able to generate high bite forces. This notion has, however, largely gone untested due to the experimental intractability of these animals. For those species that have been investigated, it remains unclear whether their high bite forces are simply a consequence of their large body size or the res...

Journal: :Collegium antropologicum 2000
H Brkić J Keros Z Kaić J Cadez

The paper presents the results on hereditary and environmental dental findings in identification of human remains exhumed from mass graves in the Republic of Croatia. The total of 17,880 teeth from all the categories (incisors, canines, premolars and molars) was examined. Hereditary findings of the teeth such as shape, size, position, as well as age were used in all of the cases confirming and ...

Journal: :European journal of orthodontics 2012
Thantrira Porntaveetus Atsushi Ohazama Hong Y Choi Joachim Herz Paul T Sharpe

The correct number and shape of teeth are critical factors for an aesthetic and functional dentition. Understanding the molecular mechanisms regulating tooth number and shape are therefore important in orthodontics. Mice have only one incisor and three molars in each jaw quadrant that are divided by a tooth-less region, the diastema. Although mice lost teeth in the diastema during evolution, th...

2013
Satheesh B. Haralur Ali Saad Al-Qahtani

The loss of anterior teeth has serious functional, esthetic disabilities, in addition to compromising the patients' quality of life. Various etiologies can be attributed to the anterior tooth loss, including trauma, caries, and periodontal diseases. The chronic mouth breathing due to nasal adenoids is known to enhance the gingival and periodontal diseases. The dental literature proves the assoc...

Journal: :Journal of international oral health : JIOH 2014
Rudys Rodolfo de Jesus Tavarez Leticia Machado Goncalves Ana Paula Dias Anna Claudia Pereira Dias Adriana Santos Malheiros Alice Carvalho Silva Matheus Coelho Bandeca

The rehabilitation of patients requiring an esthetic smile demands a multidisciplinary approach. This clinical report describes a treatment plan for recovery aesthetics' smile of anterior teeth using ceramic prosthesis with zirconia structure. Initially, a review of aesthetic parameters, diagnostic waxing, mock-up and provisional restorations was performed. A contextual assessment of aesthetic,...

2008
V. A. Knyaz

Dentistry is a field which has a need for accurate information about teeth shape, their relative position and their appearance in the face. This information is essentially important for various dentistry fields such as orthodontia, teeth treatment, denture production. Existing methods for analyzing mutual teeth arches position (occlusion) use plaster teeth arches casts and a special mechanical ...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1393

چکیده: مقدمه و هدف: آگاهی از آناتومی کانال خصوصاً در آناتومی های پیچیده مثل کانال های c-shape برای انجام یک درمان موفق ضروری می باشد. از آنجا که در کانال های c-shape نحوه ارتباط از کرونال تا آپیکال در نحوه درمان انجام شده مهم است تشخیص وضعیت آناتومیک این کانال ها می تواند اهمیت زیادی داشته باشد. در این مطالعه، مقایسه ای بین پنج روش مختلف برای تشخیص آناتومی c-shape انجام گرفته تا روشی دقیق برای...

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