نتایج جستجو برای: characterization of human teeth

تعداد نتایج: 21323624  

Journal: :Wiley interdisciplinary reviews. Developmental biology 2013
Andrew H Jheon Kerstin Seidel Brian Biehs Ophir D Klein

Teeth are unique to vertebrates and have played a central role in their evolution. The molecular pathways and morphogenetic processes involved in tooth development have been the focus of intense investigation over the past few decades, and the tooth is an important model system for many areas of research. Developmental biologists have exploited the clear distinction between the epithelium and t...

Journal: :IP international journal of periodontology and implantology 2022

Human being is creature that blessed with a knowledge and curiosity. The human recognized by body varies genotypically but somewhat similar phenotypically. gaining of the reflected in form speaking ,and this mainly function tongue teeth. Gums are structure surrounds teeth dental terminology, gums called as gingiva. These utmost importance both from oral health point view systemic view. In short...

Background and purpose: Dental and skeletal features, unlike soft tissues, remain unchanged in events where most body tissues are destroyed such as car accidents, plane crash, crimes, etc. Panoramic and lateral cephalometric radiographs can provide useful information about dental and cephalometric indicators in human identification. Materials and methods: A cohort retrospective study was carri...

Journal: :journal of dentistry, tehran university of medical sciences 0
k. ashofteh yazdi a. jafari

statement of problem: knowledge of internal anatomy of tooth plays an important role in a successful endodontics treatment. for a proper endodontic treatment, it is not only important to know the form of normal anatomy of tooth’s interior but one must also be acquainted with the possible diverse forms. purpose: a thorough understanding of the internal anatomy of human mandibular incisors (centr...

2016
NAN ZHANG BAOXING CHEN WEI WANG CHAO CHEN JIE KANG SAMUEL QINNAN DENG BIN ZHANG SHUWEI LIU FABIN HAN

The aim of the present study was to isolate stem cells from human exfoliated deciduous teeth (SHEDs) and identify their phenotypes and multi‑lineage differentiation potential. Three SHED cell strains were successfully isolated from three exfoliated deciduous teeth from different human subjects using the outgrowth method. Flow cytometric analysis indicated that SHEDs displayed high expression of...

Journal: :journal of dentistry, tehran university of medical sciences 0
f. mazhari m. mehrabkhani m. talebi m. gharaghahi

objective: loss of tooth structure due to dental caries and cavity preparation can reduce fracture resistance, especially in endodontically treated teeth. the aim of the present study was to evaluate fracture resistance of pulpotomized primary molar teeth restored with extensive multisurface amalgam restorations. materials and methods: eighty extracted carious human primary molar teeth were sel...

A Ghaznavi, A Iranparvar, A Yarahmadi, AR Talayi Pour , L Hafezi, L Sahabi,

Background and Aim: Clinical and radiographic diagnoses of dental root fractures have always been difficult and require high accuracy in dental care and treatment. The aim of this study was to compare the diagnostic accuracy of intraoral digital radiography (PSP) and CBCT in the detection of horizontal and vertical root fractures (HRF and VRF). Materials and Methods: For this experimental stud...

Journal: :Nihon Hotetsu Shika Gakkai Zasshi 1981

ژورنال: مجله دندانپزشکی 2006
شفیعی, فرشته , مرتضوی, مهران , معمارپور, مهتاب ,

Background and Aim: Although the use of adhesive systems can be effective in decreasing microleakge, it is still a major problem in composite resin restorations. The aim of the present study was to evaluate the marginal sealing ability of resin composite restorations using four dentin bonding systems in both primary and permanent teeth. Materials and Methods: In this experimental study, one hun...

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