Results 61 to 70 of about 90,751 (167)

Root resorption and tooth development [PDF]

American Journal of Orthodontics and Dentofacial Orthopedics, 2020
Madhur Sharma, Mukesh Kumar, Amandeep Kaur, Manish Goyal   +3 more
openaire   +3 more sources

XXXVII.—On a reptilian tooth with two roots [PDF]

Annals and Magazine of Natural History, 1893
n ...
openaire   +3 more sources

渐开线少齿数齿轮齿形系数和应力修正系数的实验研究

Jixie chuandong, 2007
Experiment reseach about involute gear’s tooth form factor and stress correction factor by applying 30o tangent method is carried out. Tooth profile generating experiment to teeth number is carried out, measury tooth root chord at the critical section ...
孙伏, 张杰, 陈应舒
doaj  

Effect of root length over alveolar bone on fracture resistance: Detection by cone-beam computed tomography

Journal of Oral and Maxillofacial Radiology, 2019
Background/Aim: The aim of this study was to investigate the influence of root length over alveolar bone to the occurrence of root fracture using cone-beam computed tomography (CBCT).
Fumi Mizuhashi, Ichiro Ogura, Yoshihiro Sugawara, Makoto Oohashi, Hirokazu Sekiguchi, Hisato Saegusa   +5 more
doaj   +1 more source

Case of Pulp Regeneration Following Autologous Transplantation of an Incompletely Rooted Tooth

Case Reports in Dentistry
Autologous tooth transplantation is a procedure that involves the replacement of a natural tooth with another at a new site or a surgically created recipient wound.
Hiroyuki Kimura, Tsuyoshi Kumano, Taro Eida   +2 more
doaj   +1 more source

Modification of Differential Gear based on Multi-objective Optimization

Jixie chuandong, 2020
In order to reduce vibration and noise， the modification of the tooth profile of the planetary gear and the eccentric helix are studied. The influence of tooth profile modification，helix modification， helix modification factorⅠand helix modification ...
Qiqi Feng, Tao Wang, Liangmo Wang, Hanguan Xia, Yi Dong, Yaozu Wang   +5 more
doaj  

A cone-beam computed tomography study of orthodontic apical root resorption

Journal of Dental Sciences, 2013
Background/purpose: Root resorption is an important problem in orthodontic treatment. Basically, the root resorption is evaluated by using two-dimensional images (e.g., periapical films, panoramic films, and cephalometric films). However, the use of such
Jian-Hong Yu, Kuang-Wei Shu, Ming-Tzu Tsai, Jui-Ting Hsu, Hsin-Wen Chang, Kuan-Ling Tung   +5 more
doaj   +1 more source

A Comparative Analysis between Width and Length Variables in Kvaal′s and Cameriere′s Methods of Age Estimation in a Specific Populace of Andhra Pradesh

Advances in Human Biology, 2016
Context: Comparison between ante- and post-mortem dental records and radiographs produces results with a high degree of reliability and relative simplicity. Kvaal et al.
Mohammed Arif Dar, A Ravikiran, Abhishek Singh Nayyar, Anand B Babu   +3 more
doaj   +1 more source

Several Questions about Gear Single Tooth Pulsating Bending Fatigue Test

Jixie chuandong, 2017
The methods of the tooth root bending fatigue test both at home and abroad are introduced,and several questions about single tooth pulsating test are explained and discussed,such as ensure the load distribution along tooth length direction,clamped tooth ...
Liu Ziqiang, Chen Liang, Wan Wenming
doaj  

Vertical root fracture: a case report and review of the literature

Giornale Italiano di Endodonzia, 2017
Aim: Vertical root fracture is one of the most complicated conditions in dental practice as the diagnosis of such cases is challenging. Many etiological factors contribute to vertical root fracture including excessive masticatory force and iatrogenic ...
Abdullah Alsani, Abdulrahman Balhaddad, Muhammad Ashraf Nazir   +2 more
doaj   +1 more source