نتایج جستجو برای: tooth structure

تعداد نتایج: 1632769  

Journal: :Dentistry today 2010
Douglas A Terry Markus B Blatz

Adhesive and restorative success for any indirect restoration begins and ends at the restorative-tooth interface. The bonded restorative complex includes the outer layers of the substrate, the adhesive layer, and the restorative material. Any biomaterial when properly joined to the tooth substrate is able to provide an improved marginal seal while reducing marginal contraction gaps, microleakag...

Journal: :journal of dentistry, tehran university of medical sciences 0
behnam bolhari associate professor, dental research center, dentistry research institute, department of endodontics, school of dentistry, tehran university of medical sciences, tehran, iran salma pirmoazen assistant professor, department of endodontics, school of dentistry, tehran university of medical sciences, international campus, tehran, iran ensieh taftian ِdds, department of surgery, school of medicine, tehran university of medical sciences, tehran, iran somayeh dehghan assistant professor, department of endodontics, school of dentistry, alborz university of medical sciences, karaj, iran.

trauma to primary teeth can lead to devastating sequels in development of permanent successors. the disturbance may range from enamel hypoplasia and/or hypo-calcification to arrest of dental bud development. crown dilaceration of permanent teeth is one of the consequences of trauma to deciduous teeth mainly due to intrusion or avulsion. this report presents a mandibular central incisor with dil...

2014
Steven W. McCormack Ulrich Witzel Peter J. Watson Michael J. Fagan Flora Gröning

Orthodontic tooth movement occurs as a result of resorption and formation of the alveolar bone due to an applied load, but the stimulus responsible for triggering orthodontic tooth movement remains the subject of debate. It has been suggested that the periodontal ligament (PDL) plays a key role. However, the mechanical function of the PDL in orthodontic tooth movement is not well understood as ...

Journal: :Bioelectromagnetics 2011
Yunan Han Chuanlin Liu Dong Zhou Fashen Li Yong Wang Xiufeng Han

The teeth of the Polyplacophora Chiton Acanthochiton Rubrolinestus contain biomineralized magnetite crystallites whose biological functions in relation to structure and magnetic properties are not well understood. Here, using superconducting quantum interference device (SQUID) magnetometry, we find that the saturation magnetization (σ(s)) and the Verwey transition temperature (T(v)) of tooth pa...

Journal: :Postgraduate medical journal 1951
G J PARFITT

Caries can be controlled by the early treatment of the carious lesion, by alteration of conditions upon the tooth surface and by dietary means during the period of tooth formation. The incidence of dental caries is influenced by a large number of factors. After the teeth have erupted, local conditions on the surface of the teeth have the greatest influence, but tooth structure is of considerabl...

2014
Kentaro Ishida Masamitsu Oshima Takashi Tsuji

Tooth loss or damage, such as that caused by dental caries and periodontal disease, can cause fundamental problems with oral functions. The development of regenerative therapy for tooth tissue repair and whole-tooth replacement is currently considered a novel treatment with the potential to fully recover tooth function. Several mesenchymal stem cell-like cell types have been identified in oral ...

2015
Yasushi Shimada Alireza Sadr Yasunori Sumi Junji Tagami

Optical coherence tomography (OCT) is a noninvasive technique providing cross-sectional images of a tooth structure. This review describes the use of OCT for detecting dental caries, tooth fractures, and interfacial gaps in intraoral restorations. OCT can be a reliable and an accurate method and a safer alternative to X-ray radiography.

Journal: :Journal of human evolution 2006
Frank P Cuozzo Michelle L Sauther

The ring-tailed lemurs at Beza Mahafaly Special Reserve, Madagascar, exhibit a high frequency of severe wear and antemortem tooth loss. As part of a long-term study, we collected dental data on 83 living adult ring-tailed lemurs during 2003 and 2004. Among these individuals, 192 teeth were scored as absent. The most frequently missing tooth position is M1 (24%). As M1 is the first tooth to erup...

2017
Mehrsa Zakershahrak Amirabbas Moshari Mehdi Vatanpour Zohreh Khalilak Afsoon Jalali Ara

Autogenous tooth transplantation (ATT) is a simple and reasonable choice for replacing the missing teeth when a proper donor tooth is available. This report presents a case of successful ATT of a maxillary right third molar for replacement of mandibular right second molar with a concomitant endodontic-periodontal disease. The mandibular second molar was believed to be hopeless due to a severe d...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Etsuko Ikeda Ritsuko Morita Kazuhisa Nakao Kentaro Ishida Takashi Nakamura Teruko Takano-Yamamoto Miho Ogawa Mitsumasa Mizuno Shohei Kasugai Takashi Tsuji

Current approaches to the development of regenerative therapies have been influenced by our understanding of embryonic development, stem cell biology, and tissue engineering technology. The ultimate goal of regenerative therapy is to develop fully functioning bioengineered organs which work in cooperation with surrounding tissues to replace organs that were lost or damaged as a result of diseas...

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