Results 71 to 80 of about 1,721,695 (243)

3D Printing Helps Preserve Dental Pulp In Tooth Transplantation

International Dental Journal
Introduction: This study presents a 3D Printing-Aidded surgical approach to preparing the receiving socket for a mature mandibular third molar donor tooth and try to preserve dental pulp. Case description: A 29-year-old woman developed root resorption of
Qianshu Lv, Jinguo Zheng
doaj   +1 more source

Comparison of analysis and experiment for dynamics of low-contact-ratio spur gears [PDF]

Low-contact-ratio spur gears were tested in NASA gear-noise-rig to study gear dynamics including dynamic load, tooth bending stress, vibration, and noise.
Lin, Hsiang Hsi, Oswald, Fred B., Rebbechi, Brian, Townsend, Dennis P., Zakrajsek, James J.   +4 more
core   +1 more source

Fracture Resistance of Compromised Endodontically Treated Teeth Restored with Bonded Post and Cores: An in Vitro Study [PDF]

, 2015
Statement of problem: It is unclear which post and core system performs best when bonded to severely compromised endodontically treated teeth. Purpose: The purpose of this study was to investigate the fracture resistance and mode of failure of severely ...
Kontogiorgos, Elias D., Maroulakos, Georgios, Nagy, William W.   +2 more
core   +2 more sources

Treatment of a first molar with external root resorption in the middle third using endodontic microsurgery and vital pulp therapy: a case report

BMC Oral Health
Background External root resorption is a pathologic process starting from the root surface of the tooth. At present, there are few reports about the treatment of vital pulp preservation in the tooth with external root resorption.
Yue Zhao, Shuangshuang Ren, Mingyue Cheng, Chao Liu, Sufeng Zhao, Leiying Miao   +5 more
doaj   +1 more source

Multidisciplinary Treatment Of Fracture And Luxation Of Immature Permanent Teeth

International Dental Journal
Introduction: The management of anterior tooth luxation with concomitant subgingival root fracture necessitates a multidisciplinary approach that considers biological, functional, and aesthetic factors.
Haojie Yu, Zhu Haihua, Zhu Fudong
doaj   +1 more source

Influence of linear profile modification and loading conditions on the dynamic tooth load and stress of high contact ratio gears [PDF]

A computer simulation for the dynamic response of high-contact-ratio spur gear transmissions is presented. High contact ratio gears have the potential to produce lower dynamic tooth loads and minimum root stress but they can be sensitive to tooth profile
Lee, Chinwai, Lin, Hsiang Hsi, Oswald, Fred B., Townsend, Dennis P.   +3 more
core   +1 more source

Antagonistic interaction between Ezh2 and Arid1a coordinates root patterning and development via Cdkn2a in mouse molars

eLife, 2019
Patterning is a critical step during organogenesis and is closely associated with the physiological function of organs. Tooth root shapes are finely tuned to provide precise occlusal support to facilitate the function of each tooth type.
Junjun Jing, Jifan Feng, Jingyuan Li, Xia Han, Jinzhi He, Thach-Vu Ho, Jiahui Du, Xuedong Zhou, Mark Urata, Yang Chai   +9 more
doaj   +1 more source

Outcomes of Primary Endodontic Therapy Provided by Endodontic Specialists Compared to Other Providers [PDF]

, 2016
Introduction: The objective of this study was to compare the outcomes of initial non-surgical root canal therapy (NSRCT) for different tooth types provided by both endodontists and other providers.
Burry, Jacob
core   +1 more source

Biological effects on tooth root surface topographies induced by various mechanical treatments.

Colloids and Surfaces B: Biointerfaces, 2019
The cleaning and physicochemical properties on tooth root biointerfaces are pivotal for periodontal healing. Herein, this work investigated the impact of multi-treatment on the physicochemical features of tooth root surfaces and the responsive behavior ...
Xiaohui Qiu, Shuo Xu, Yuanping Hao, B. Peterson, Baowei Li, Kai Yang, Xiaofang Lv, Qihui Zhou, Q. Ji   +8 more
semanticscholar   +1 more source

Accurate Finite Element Modeling Method of Herringbone Gear based on Multipoint Constraint Method

Jixie chuandong, 2022
A sufficiently refined mesh at the stress position is the basis for finite element analysis of gears to obtain accurate tooth surface contact stress and tooth root bending stress.
Guanwang Geng, Wei Liu, Qingsong Zhang
doaj