Results 131 to 140 of about 8,133 (281)

Design Optimisation of the Tooth Surface of a Variable Hyperbolic Circular Arc Tooth Trace Cylindrical Gear Based on Loaded Transmission Error

To reduce the vibration and noise of the variable hyperbolic circular arc tooth trace (VH-CATT) cylindrical gear transmission system, a method for modifying the tooth surface with an inclined milling cutter head and a parabolic cutter blade is proposed ...
Ye, Zhenhuan, Liu, Yongping, Jiang, Bing, Ma, Dengqiu   +3 more
core   +1 more source

Oral Health Care Services, Barriers and Enablers to Maintaining Good Oral Health in Motor Neurone Disease: A Scoping Review

Community Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Objectives The objective of this scoping review was to map existing literature on oral health and related care in individuals with Motor Neurone Disease (MND). Specifically, the review aimed to identify barriers and facilitators to maintaining oral hygiene, summarise available clinical guidelines and patient‐facing resources, and examine how ...
Mariam A. Khokhar, Lucy A. O'Malley, Anne‐Marie Glenny, Xiaohui Chen   +3 more
wiley   +1 more source

Analysis of meshing performance of face gear with full tooth surface modification

Jixie chuandong
ObjectiveTo investigate the influence of a modified tooth surface on the meshing performance of face gear pair, a full tooth surface modification method for face gear was proposed to optimize their meshing performance.MethodsFirstly, the standard tooth ...
HE Kun, CHEN Yongquan, DU Yanbin, LI Ronghao   +3 more
doaj  

Computational Tooth Root Stress Analysis of Crossed Beveloid Gears with Small Shaft Angle

, 2011
It is known that tooth bending failures are directly caused by the stress state at the tooth root or fillet regions of the gear teeth. In this study, the geometric and manufacturing of the fillet and root of crossed beveloid are investigated and a ...
Cai Chao Zhu, Teik Chin Lim, Rong Fan, Chao Sheng Song   +3 more
core   +1 more source

Examining the Psychometric Properties of the Ultra‐Short Version of the Oral Health Impact Profile in Australia

Community Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Objectives The Oral Health Impact Profile (OHIP) is the most widely used instrument to measure the subjective impact of oral conditions. This study reports the shortening and psychometric evaluation of an ultra‐short version (OHIP‐7A) from the OHIP‐14 in a large national Australian population.
Brandan Khor, Gustavo Hermes Soares, Dandara Gabriela Haag, Gloria Mejia, Liana Luzzi, Lisa Jamieson, Pedro Henrique Ribeiro Santiago   +6 more
wiley   +1 more source

The Effect of Crown Height and Retentive Height of Abutment on the Fracture Resistance of Fatigued Monolithic Zirconia Anterior Implant Crowns—An In Vitro Study

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objectives This laboratory study investigated the effect of two different retentive heights of Ti‐base abutments (3.5 and 5.5 mm) and crown heights (13 and 16 mm) on the load at failure and survival of monolithic zirconia implant‐supported crowns replacing a maxillary central incisor.
Esha Zahid, Jaafar Abduo, Attila Gergely, Roy Judge, Carolina Perez‐Rodriguez, Joseph Palamara   +5 more
wiley   +1 more source

Association of Transmucosal Emergence Geometry and Peri‐Implant Diseases Prevalence Around Bone‐ and Tissue‐Level Implants: A Cross‐Sectional Study

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objectives This cross‐sectional study primarily aimed at investigating the association between the transmucosal emergence geometry and the prevalence of peri‐implant diseases in bone‐ and tissue‐level implants (BL/TL). As secondary objectives, the association of other implant‐, prosthesis‐, and patient‐related variables with crestal bone ...
Clemens Raabe, Manrique Fonseca, Vivianne Chappuis, Gustavo Avila‐Ortiz, Diogo Moreira Rodrigues, Pablo Galindo‐Moreno, Emilio Couso‐Queiruga   +6 more
wiley   +1 more source

Augmented Reality Improves Accuracy of Dynamic Computer‐Assisted Implant Surgery: An In Vitro Analysis

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objective To assess the accuracy of dynamic computer‐assisted implant surgery (dCAIS) performed with and without augmented reality (AR) smart‐glasses visualization under standardized laboratory conditions. Materials and Methods A standardized typodont model with bounded and unbounded edentulous spaces was prepared to receive polyurethane ...
Arndt Guentsch, Shengtong Han
wiley   +1 more source

Tooth Contact Analysis of Cycloidal Pinwheel Drive in RV Reducer of Robot

Jixie chuandong, 2017
The second-stage drive of the RV reducer,cycloidal pinwheel drive is taken as the research object. By analyzing the motion relationship of the cycloidal pinwheel drive,the tooth contact analysis（TCA）model is established.
Liang Shuaifeng, Deng Xiaozhong, Li Tianxing, Wang Changlu, Yang Jingzhao   +4 more
doaj  

Circular Spline Tooth Longitudinal Modification Design and Contact Analysis for Harmonic Drives with Short Flexspline

Harmonic drives (HDs) with short flexspline (FS) always suffer from small meshing areas and severe stress concentration caused by large cone angles when a short FS is assembled and loaded.
Boyang Liu, Haoyu Liu, Xingyu He, Hesheng Feng, Menghan Zhang, Peng Su, Yabin Guan, Zaishang Shen   +7 more
core   +1 more source