نتایج جستجو برای: secondary dentin formation

تعداد نتایج: 820171  

Journal: :Archives of oral biology 2004
Uri Zilberman Smith Patricia Ari Kupietzky Eliyahu Mass

OBJECTIVE The purpose of this study was to compare tooth components (enamel and dentin) in Familial Dysautonomia (FD) and Down syndrome (DS) in order to assess the extent to which each was affected. DESIGN The design was cross-sectional. The sample consisted of 20 FD patients and 45 DS patients. The control group comprised 250 healthy subjects. Mesio-distal crown width (CW), enamel and dentin...

Journal: :The Journal of Cell Biology 1973
Melvyn Weinstock C. P. Leblond

A peptide that is rich in organically bound phosphorus and contains abundant serine residues has been identified in the dentin of man (1), fetal bovine (2, 3), and rat (4). This phosphoprotein may play a role in mineralization (5-9). Butler et al. (4) reported that the phosphoprotein of rat incisor dentin constituted 10.8% of the proteinaceous material recovered from decalcified incisor teeth w...

2017
Paula Lancaster David Brettle Fiona Carmichael Val Clerehugh

The crown of a human tooth has an outer layer of highly-mineralized tissue called enamel, beneath which is dentin, a less-mineralized tissue which forms the bulk of the tooth-crown and root. The composition and structure of enamel and dentin are different, resulting in different thermal properties. This gives an opportunity to characterize enamel and dentin from their thermal properties and to ...

2013
Ali CEKICI Ilay MADEN Sercan YILDIZ Tangul SAN Gulden ISIK

BACKGROUND Periodontal regeneration is dependent on the uninterrupted adhesion, maturation and absorption of fibrin clots to a periodontally compromised root surface. The modification of the root surface with different agents has been used for better fibrin clot formation and blood cell attachment. It is known that Er:YAG laser application on dentin removes the smear layer succesfully. AIM Th...

Journal: :Nagoya journal of medical science 2009
Yusuke Ando Masaki J Honda Hayato Ohshima Akiko Tonomura Takayuki Ohara Toshimitsu Itaya Hideaki Kagami Minoru Ueda

The purpose of this study was to investigate dentin-bridge formation in teeth following the transplantation of dental pulp-derived cells seeded on hydroxyapatite/tricalcium phosphate (HA/TCP) scaffolds. The dental pulp tissues were removed from the extracted first molar teeth of miniature pigs and single cell populations were subcultured. Second-passage cells that had alkaline phosphatase activ...

2015
In-Woong Um Woo-Jin Cho

1. Kadkhodazadeh M, Ghasemianpour M, Soltanian N, Sultanian GR, Ahmadpour S, Amid R. Effects of fresh mineralized dentin and cementum on socket healing: a preliminary study in dogs. J Korean Assoc Oral Maxillofac Surg 2015;41:119-23. 2. Huggins CB, Urist MR. Dentin matrix transformation: rapid induction of alkaline phosphatase and cartilage. Science 1970;167:8968. 3. Moharamzadeh K, Freeman C, ...

Journal: :Brazilian dental journal 2015
Marina Amaral Priscilla Pessin Coppo Cíntia Gonçalves Carvalho Rosalem Fabricia Ferreira Suaid Selva Maria Gonçalves Guerra

This retrospective study evaluated the clinical outcome of 139 teeth restored with carbon fiber posts after 3 years of placement, considering the amount of remaining dentin as the main variable. Eighty-one patients received the fiber posts within a period of 16 months and were recalled after 3 years. The tooth type, amount of remaining dentin, and prosthetic crown material were evaluated. No lo...

Journal: :Frontiers in dental medicine 2022

Introduction Mineralized pulp (MP) compromises tooth function and its causation is unknown. The hypothesis of this study that mineralization associated with pulpal tissue adaptation, increased mineral densities, decreased permeabilities tubular dentin cementum. Methods will include correlative spatial mapping physicochemical biochemical characteristics pulp, contextualize these properties withi...

2004
MERJA SULKALA Leo Tjäderhane Tuula Salo Markku Larmas

The dentin-pulp complex comprises mineralized dentin and the vital soft tissues encased inside dentin, i.e. odontoblasts and pulp tissue. During caries progression, the dentinal minerals are dissolved and eventually the collagenous organic matrix is degraded. However, the exact mechanisms and enzymes responsible for the organic matrix breakdown remain unknown. Matrix metalloproteinases (MMPs), ...

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