Results 81 to 90 of about 55,331 (264)

Impaired healing following implant placement surgery: A case report of a modern‐day manifestation of scurvy

Clinical Advances in Periodontics, EarlyView.
Abstract Background Delayed wound healing following implant placement surgery is an uncommon complication, usually attributed to systemic (smoking and alcohol), local (severely inflamed tissues), or technical (poor suturing) factors. However, delayed wound healing after implant placement caused by severe hypovitaminosis C has not been previously ...
Gregor‐Georg Zafiropoulos, Gerald Kolb, Dimitris N. Tatakis   +2 more
wiley   +1 more source

Long‐term outcomes of microsurgical interdental papilla reconstruction: 13‐year and 18‐year case follow‐ups

Clinical Advances in Periodontics, EarlyView.
Abstract Background Loss of the interdental papilla compromises esthetics, speech, and hygiene, significantly affecting quality of life and psychological well‐being. Reconstruction has long been considered unpredictable, particularly in Cairo RT3 cases with advanced interproximal bone loss.
Katsuhiko Akiyama
wiley   +1 more source

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

Research of Meshing Contact Impact Stress Distribution of Circular Arc Tooth Trace Cylindrical Gear Surface

Jixie chuandong, 2018
In order to research the meshing contact impact stress distribution rule of the circular arc tooth trace cylindrical gear,the cause of meshing contact impact is analyzed based on gear system contact dynamics and gear physical model. Then,the accurate 3 D
Ma Dengqiu, Wei Yongqiao, Ye Zhenhuan, Luo Lan, Hou Li   +4 more
doaj  

INFLUENCE OF ACTIVE MODIFICATION PARAMETERS ON BEARING CHARACTERISTICS OF OPPOSITE GEAR PAIRS (MT)

Jixie qiangdu, 2023
Active gear design is a method that can pre-control gear meshing performance directly. In order to study the influence of active gear design on the bearing characteristics of tooth surface, the relationship between active modification parameters of the ...
HOU YanYan, CHANG Qing, HU XiWen, PENG XianLong   +3 more
doaj  

Simplified SPAL technique to provide adequate peri‐implant phenotype: A pilot study

Clinical Advances in Periodontics, EarlyView.
Abstract Background Correction of peri‐implant bone dehiscence (PIBD) and optimization of the peri‐implant soft‐tissue phenotype are critical for long‐term peri‐implant tissues stability. A simplified, one‐stage, transmucosal variant of the subperiosteal peri‐implant augmented layer (sSPAL) technique was appraised and evaluated.
Leonardo Trombelli, Chiara Franzini, Mattia Severi   +2 more
wiley   +1 more source

Method of calculation and test of dynamic tooth root strain for high-contact-ratio spur gears

Jixie chuandong
ObjectiveAiming at the difference of load sharing and dynamic characteristics between high-contact-ratio spur gears and conventional spur gears, a method for calculating the dynamic tooth root strain was proposed considering the dynamic characteristics ...
YU Pengfei, ZHANG Xiangfeng, ZHOU Jianxing, WANG Haiwei, LIU Yi   +4 more
doaj  

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

Developmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova, Jan Stundl, Lenin Arias‐Rodriguez, Robert Cerny, Vladimír Soukup   +4 more
wiley   +1 more source

All‐in‐One Intelligent Hemostatic Sponge: Rapid Hemostasis for Non‐Compressive Wounds With Synergetic Enhanced Antibacterial Efficacy and Self‐Reporting Biodegradation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Clinicians often concurrently tackle critical challenges including emergency hemorrhage, secondary infection, and the elusive tracking of biodegradation of conventional hemostatic agents for complex wounds. Here, we report an intelligent hemostatic sponge (spCS@AIE) by incorporating aggregation‐induced emission (AIE) nanoparticles with short‐wave ...
Zhicheng Liu, Yan Zhang, Mengmeng Wang, Ye Li, Heng Sun, Lanqiong Zhang, Xin Bai, Haicheng Wei, Zhi Wang, Hao Guan, Yanzi Xu, Dongfeng Dang, Lingjie Meng   +12 more
wiley   +1 more source

Mathematical Analysis of Tooth Contact in a Drum Worm Pair

Abstract A planar internal gear enveloping drum worm (PIGEDW) reducer is designed for analyzing its contact area. In this paper, the mathematical analysis method of tooth contact is proposed to analyze its contact pattern. Firstly, the PIGEDW mathematical model is created on the basis of the gear meshing theory. Secondly, the simulation model
Shuangcen Li, Shiqiang Luo
openaire   +1 more source