نتایج جستجو برای: human tooth

تعداد نتایج: 1718221  

2015
Talaat Abo Hatab Nabil Kochaji Nizar Issa Reem Nadra Manal Saleh Abdulkader Rahmo M. Salem Rekab

The ultimate goal of endodontics therapy is the regeneration of tooth supporting tissues. This case study evaluated whether the transplantation of autologous dental pulp stem cells with chitosan scaffold into pulpless root canals could mediate pulp regeneration in human mature teeth. The dental pulp stem cells isolated from the patient`s pulp tissue. The cells were then seeded onto a chitosan s...

Journal: :Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine 2017
Ker-Kong Chen Nao-Aki Noda Kiyoshi Tajima Yoshikazu Sano Yasushi Takase

Wedge-shaped defects are frequently observed on the cervical region of the human tooth. Previously, most studies explained that improper tooth-brushing causes such defects. However, recent clinical observation suggested that the repeated stress due to occlusal force may induce the formation of these wedge-shaped defects. In this study, therefore, two-dimensional human tooth models are considere...

2004
Anil K. Jain Hong Chen

The human dental atlas contains a detailed description of each tooth in the mouth and their relative positions. Registering a dental radiograph to the dental atlas reveals the position and index of each tooth in the radiograph. This helps in establishing the correspondence of teeth when matching two radiographs for human identification. We propose a hidden Markov model (HMM) as an underlying re...

2013
Wyman Chan Ryan Banks Edward Lynch Martin Grootveld

A multicomponent evaluation of the oxidative consumption of salivary biomolecules by a hydrogen peroxide (H2O2)containing tooth-whitening formulation has been performed using high-resolution proton (H) nuclear magnetic resonance (NMR) spectroscopy. Unstimulated human saliva samples (n = 10) were treated with aliquots of supernatants derived from 1) the H2O2-containing whitening gel, 2) the corr...

2005
ALPHONSE R. BURDI

ALPHONSE R. BURDI and JEROME SUPERSTINE Department of Anatomy (Medical School) and School of Dentistry, University of Michzgan, Ann Arbor, Michigan 48109, USA J Dent Res 56(12): 1468, December 1977. deciduous and permanent dental arches, raw order Early prenatal development of human dentitions correlations indicate a moderate association (r = through the classical stages of tooth development ca...

2015
V Deepak S N Goryawala Yashwanth Reddy R J Chhabra Nandaprasad Nishit Kumar Shah

BACKGROUND Tooth crown dimensions vary between different ethnic groups, providing insights into the factors controlling human dental development. This present study compares permanent mesiodistal (MD) and buccolingual crown dimensions between four ethnic groups, highlighting patterns of tooth size between these groups and considers the findings in relation to genetic and environmental influence...

2016
Zhi-bin Huang Xin Shi Jing Mao Shi-qiang Gong

Controlling and reducing the formation of pathogenic biofilm on tooth surface is the key to the prevention and treatment of the biofilm-associated oral diseases. Antimicrobial peptides (AMPs), considered as possible future alternatives for conventional antibiotics, have been extensively studied for the control of bacterial infection. Due to the rapid dilution and degradation by human saliva, AM...

Journal: :Acta biomaterialia 2010
James J-W Lee Dylan Morris Paul J Constantino Peter W Lucas Tanya M Smith Brian R Lawn

A comparative study has been made of human and great ape molar tooth enamel. Nanoindentation techniques are used to map profiles of elastic modulus and hardness across sections from the enamel-dentin junction to the outer tooth surface. The measured data profiles overlap between species, suggesting a degree of commonality in material properties. Using established deformation and fracture relati...

2011
Javier Catón Nagihan Bostanci Eumorphia Remboutsika Cosimo De Bari Thimios A Mitsiadis

Cell-based tissue repair of the tooth and - tooth-supporting - periodontal ligament (PDL) is a new attractive approach that complements traditional restorative or surgical techniques for replacement of injured or pathologically damaged tissues. In such therapeutic approaches, stem cells and/or progenitor cells are manipulated in vitro and administered to patients as living and dynamic biologica...

2013
Fadil Elamin Helen M. Liversidge

The effect of nutrition on the timing of human tooth formation is poorly understood. Delays and advancements in dental maturation have all been reported as well as no effect. We investigated the effect of severe malnutrition on the timing of human tooth formation in a large representative sample of North Sudanese children. The sample (1102 males, 1013 females) consisted of stratified randomly s...

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