Results 91 to 100 of about 2,685,330 (268)

Analysis of Tooth Surface Error of Topology Modification Gear

Jixie chuandong, 2017
When gear topology modification using the forming method grinding,the tooth profile modification is achieved by trimming the wheel truncation,while the tooth modification is achieved by adding an additional movement of the wheel or gear.
Wang Zhonghou, Liu Shaokun, Liu Xinrong, Zhang Liming   +3 more
doaj  

Research on Digital Design and Tooth Shape Optimization of Non-circular Gears Based on Envelope Features

Jixie chuandong, 2022
Based on the principle of gear meshing and differential geometry theory， the motion coordinate conversion relationship between the gear cutter and the non-circular gear tooth blank is obtained， and the machining process of the non-circular gear tooth ...
Yongping Liu, Beibei Yun, Yongqiao Wei, Changbin Dong, Zhongtao Ren   +4 more
doaj  

Effect of aesthetic crown lengthening on life quality and self‐esteem: 2‐year study

Clinical Advances in Periodontics, EarlyView.
Abstract Background A gummy smile can result from several factors, often leading to a disharmonious appearance and causing physical and psychological discomfort for the patient. This study aimed to evaluate changes in self‐esteem and quality of life for patients, as well as the recidivism rate, following aesthetic crown lengthening (ACL) surgery ...
Leticia S. Arroteia, Camila S. Stolf, Hélvis E. S. Paz, Thais F. M. Paschoal, Mabelle F. Monteiro, Márcio Z. Casati, Mauro P. Santamaria, Renato C. V. Casarin   +7 more
wiley   +1 more source

Perigraftitis, an independent biologic complication associated with implants placed in grafted bone

Clinical Advances in Periodontics, EarlyView.
Abstract Background Perigraftitis is a recently introduced concept describing biologic complications specifically associated with implants placed in grafted bone. It is characterized by inflammation resulting from bacterial colonization of grafted bone and/or residual graft particulates.
Jonathan H. Do, Charles M. Cobb, John T. Shen   +2 more
wiley   +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  

Multi-objective Optimal Design of RV-550E Reducer Cycloid Gear Profile Modification

Jixie chuandong, 2018
In order to obtain the best overall performance of cycloid profile,a multi-objective optimal design method of cycloid gear profile modification is presented. The cycloidal gear tooth profile equation and modification theory are introduced.
Wang Quan, Qin Zhengzheng, Zhao Daxing, Wang Jun, Chen Zhilong, Yan Zicheng   +5 more
doaj  

Finite Element Analysis for Tooth Profile Modification of Gear-Box of Tracklayer

, 2010
The quasi-static contact finite element analysis of meshing gear of gear-box is computed by using MSC.Marc software, then transmission error and surface contact stress of meshing gear are computed in different tooth profile modification methods.
Hui Yong Deng, Hai Ping Liu, Ji Sheng Ma, Yan Wang   +3 more
core   +1 more source

Modified Neumann incision for implant placement in overdentures: Case series of a less invasive alternative

Clinical Advances in Periodontics, EarlyView.
Abstract Background Conventional envelope flap techniques for implant placement in edentulous mandibles are associated with greater postoperative morbidity, especially in elderly patients or those with anatomical limitations. Minimally invasive alternatives aim to preserve soft tissues and reduce complications, enhancing clinical predictability ...
Lucas Jardim da Silva, Laura Lourenço Morel, Luciana de Rezende Pinto, Otacílio Luiz Chagas‐Júnior, Jamil Awad Shibli, Fernanda Faot   +5 more
wiley   +1 more source

Equivalent Substitution of Stress Balanced Tooth Profile based on Eccentricity Modification

Jixie chuandong, 2018
By the theory of equivalent substitution,the FT455 model with high precision FT pin-cycloid is used as the carrier,and based on the way of eccentricity modification,the equivalent substitution of stress balanced tooth profile is carried out.
Xuan Liang, Jiang Heng, Guan Tianmin, Xie Chao   +3 more
doaj  

Five‐year tomographic and clinical evaluation of the socket shield technique: Case report

Clinical Advances in Periodontics, EarlyView.
Abstract Background The socket shield technique, one modality of partial extraction therapy, aims to preserve periodontal tissues and maintain the buccal alveolar bone volume following immediate implant placement or in prosthetic pontic sites, by the strategic maintenance of a tooth root fragment.
Renan Dalla, Khalila C. Cotrim, Rafael A. Siqueira, Eduardo C. Kalil   +3 more
wiley   +1 more source