نتایج جستجو برای: dental pulp cavity

تعداد نتایج: 220158  

2002
Elżbieta Żądzińska Andrea G. Drusini Nicola Carrara E. Żądzińska A. G. Drusini N. Carrara

From among age estimation procedures we chose two for comparison. One of them is the standard method based on root dentin transparency; the other one is based on coronal pulp cavity heigth. The material consisted of X-ray photographs and longitudinally sectioned teeth of 276 individuals (174 males and 102 females) of known age. The comparison shows that the poorly known TCI method is at least a...

2014
Maryam Raoof Mohammad Mehdi Yaghoobi Ali Derakhshani Ali Mohammadi Kamal-abadi Behnam Ebrahimi Mehdi Abbasnejad Noushin Shokouhinejad

BACKGROUND Dental pulp stem cells can be used in regenerative endodontic therapy. The aim of this study was to introduce an efficient method for dental pulp stem cells isolation. MATERIALS AND METHODS In this in-vitro study, 60 extracted human third molars were split and pulp tissue was extracted. Dental pulp stem cells were isolated by the following three different methods: (1) digestion of ...

Journal: :Journal of dental research 2007
R Yasuhara T Suzawa Y Miyamoto X Wang M Takami A Yamada R Kamijo

Dental preparation sometimes causes transient congestion, edema, and necrosis of the pulp. We hypothesized that nitric oxide (NO) is involved in the pathophysiological changes in pulp after preparation. The mRNA and protein expression of the inducible isoform of NO synthase (iNOS) was examined in murine pulp after dental preparation. The effects of NO on the proliferation, mineralization, and a...

Journal: :The Bulletin of Tokyo Dental College 2010
Hiroko Agematsu Hidetoshi Someda Masatsugu Hashimoto Satoru Matsunaga Shinichi Abe Hee-Jin Kim Taisuke Koyama Hiroyoshi Naito Ryo Ishida Yoshinobu Ide

We investigated three-dimensional decrease in the volume of the pulp chamber caused by age-related secondary dentin formation using micro-CT and evaluated the applicability of the results to evaluation of age taking into account sex, age and tooth type. Decrease was slightly higher in females than in males, and a higher correlation between decrease and aging was observed in females. A compariso...

2012
Isauremi Vieira de Assunção Pinheiro Boniek Castillo Dutra Borges Kenio Costa de Lima

OBJECTIVE This study aimed to evaluate in vivo the occurrence of secondary caries and dentin characteristics in permanent molars after traditional amalgam restorations, by means of clinical visual examination, radiographs and laser-induced fluorescence (LF) (DIAGNOdent). METHODS Thirty first permanent molars of 30 schoolchildren in the 7 to14 year-old age group were included. Caries was remov...

Objective- Due to its specific position, the canine tooth is more exposed to the injuries, fractures and pulp necrosis. In these cases, the damaged teeth are usually pulled out. The root of this tooth is very large and sometimes extends over the premolar teeth. To extract it, a large amount of alveolar bone tissue should be harvested. Moreover, the cavity remains very large, wh...

2012
Hakan Çolak Ahmet Arif Çelebi M. Mustafa Hamidi Yusuf Bayraktar Tuğba Çolak Recep Uzgur

OBJECTIVE The aim of this study was to determine the prevalence of pulp stones (PS) in a Turkish dental patient population with respect to sexes and dental localization in relation between sex and this anomaly. MATERIALS METHODS A retrospective study was performed using bitewing radiographs of 814 patients ranging in age from 15 to 65. All data (age, sex, and location) was obtained from the f...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2008
M Demirci K-A Hiller C Bosl K Galler G Schmalz H Schweikl

OBJECTIVES Polymerized dental resin materials release residual monomers that may interact with pulp tissues. We hypothesized that dental adhesives might cause cytotoxicity in pulp cells via the generation of reactive oxygen species (ROS), which may also contribute to genotoxic effects in vitro. METHODS For cytotoxicity testing, transformed human pulp-derived cells were exposed to extracts of ...

Journal: :The Bulletin of Tokyo Dental College 2001
T Tanaka Y Kaneko

The viability of dental pulp depends largely on regional blood flow, as in other organs. Measurement of absolute pulpal blood flow (PBF) and comparisons with blood flow in other organs allow the prediction of microvascular regulation in dental pulp. In previous studies, PBF was measured in dogs mainly with radioactive microspheres. However, this established technique is inaccessible to many inv...

Journal: :Journal of applied physiology 1996
G Raimondi J M Legramante F Iellamo G Frisardi S Cassarino G Peruzzi

The main purpose of this study is to examine whether the stimulation of an exclusively pain-sensing receptive field (dental pulp) could determine cardiorespiratory effects in animals in which the cortical integration of the peripheral information is abolished by deep anesthesia. In 15 anesthetized (alpha-chloralose and urethan) rabbits, low (3-Hz)- and high-frequency (100-Hz) electrical dental ...

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