Results 51 to 60 of about 1,196,714 (201)

非均荷载下齿向应力与轮齿变形的数值模拟

open access: yesJixie chuandong, 2010
Based on the considerable effect to numerical simulation of exact modeling,APDL-Matlab parametric modeling programming is used.Exactly gear teeth model is built by tooth profile curve derivation.A simulation method that contact load is linear before ...
符双学, 周长江, 程秀全
doaj  

PDLSC-CM targets HAPLN1 in macrophages to reduce root resorption in delayed replanted teeth

open access: yesStem Cell Research & Therapy
Background Tooth avulsion is the most serious dental trauma, mainly affecting anterior teeth in adolescents. Delayed tooth replantation is the most common situation in clinical, but root resorption is a common complication that can lead to tooth loss. As
Lu Jia   +14 more
doaj   +1 more source

Sharp Curvature of Premolar Resulting in External Apical Root Resorption of the Neighbouring Molar

open access: yesCase Reports in Dentistry, 2011
This case report describes an external apical root resorption resulted from the unusual root morphology of the neighbouring tooth. A 28-year-old female was referred to the department of endodontics with a complaint of intense pain in her maxillary second
Özgür İlke Atasoy Ulusoy
doaj   +1 more source

Cross Section of Tooth Root

open access: yes, 2022
SLIDE LABEL INFO: Hand 1: Cross sec. Tooth Root FROM INDEX CARD: Collection: N/A Spec #: N/A Species: N\A Common Name: N/A Element: femur Side: N/A Notes: N/
Foote, James S., M.D.
core  

ROOT CANAL TREATMENT CAN SAVE INFECTED TOOTH FROM BEING EXTRACTED [PDF]

open access: yes, 2016
KUBANG KERIAN, KELANTAN, 10 June 2016 – When bacteria (germs) invade the centre of a tooth called the root canal system which is filled with soft dental pulp made up of nerves and blood vessels, it causes severe pain and/or swelling to the tooth, to ...
MPRC, Pusat Media & Perhubungan Awam
core   +1 more source

Síndrome do dente rachado [PDF]

open access: yes, 2012
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.As principais causas da perda dental, mesmo com a evolução da odontologia, ainda são a cárie e a doença periodontal. A fratura dental vem em terceiro lugar
Menegassi, Richard
core  

Human life history evolution explains dissociation between the timing of tooth eruption and peak rates of root growth.

open access: yesPLoS ONE, 2013
We explored the relationship between growth in tooth root length and the modern human extended period of childhood. Tooth roots provide support to counter chewing forces and so it is advantageous to grow roots quickly to allow teeth to erupt into ...
M Christopher Dean, Tim J Cole
doaj   +1 more source

The role of BMP4 in HERS during tooth root development

open access: yes, 2008
Tooth development is regulated by reciprocal interactions between epithelial and mesenchymal cells. Several morphological studies suggest that growth factors secreted from these cells regulate tooth development.
Jung, HS, Kim, JY, Cho, SW, Hosoya, A
core   +1 more source

Coronal restoration in root-filled and non root-filled teeth : studies on periapical status, tooth survival, subsequent treatments and treatment decisions

open access: yes, 2019
The overall aim of this thesis was to study the following aspects of direct and indirect coronal restoration, primarily of root-filled teeth, with special reference to: • periapical health • the natural course of root-filled teeth, particularly ...
Dawson, Victoria, Dawson, Victoria,
core   +1 more source

METHODOLOGICAL APPROACHES FOR THE BACTERIOME ANALYSIS OF THE ROOT CANAL SYSTEM OF A TOOTH AFFECTED BY APICAL PERIODONTITIS

open access: yes, 2023
Introduction, aim: Apical periodontitis (AP) is an inflammatory disease of the dental periradicular tissues caused by a bacterial infection. Various methodological approaches are used to determine the bacteria inhabiting the root canals, however, the ...
D Száraz   +4 more
core   +1 more source

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