Forced Eruption: Alternative Treatment Approach to Restore Teeth with Subgingival Structure by Hamid Kermanshah, Elmira Najafrad, Sara Valizadeh

“…Orthodontic extrusion preserves the natural root system and may convert the tooth indicated for extraction into useful tooth with good prognosis and a low risk of failure. …”
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Study on Meshing Efficiency of Non-circular Gear based on Elastohydrodynamic Lubrication by Wanshan Liu, Hao Peng, Zhiqin Cai, Xiaofan Ma

“…By defining a meshing cycle as the period from the tooth top of pitch curve trough to the tooth root of pitch curve crest of non-circular gear， the meshing efficiency of noncircular gear drive is obtained by calculating the power loss of sliding friction and rolling friction under the change of meshing angle.…”
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Determination of Gear Bending Fatigue Limit based on Up and Down Method by Yang Guangming

“…The test of the single- tooth bending fatigue strength of 20 Cr Mo H carburized gear is discussed. …”
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Analysis of Planetary Closed Differential Motion in RV Reducer by Zhong Feng, Huaping Chen, Guanhua Feng, Xiaogang Liu, Jianjun Liu

“…The evolution process of RV reducer from one tooth differential cycloid needle wheel reducer is analyzed，the concept that the crank shaft is a negative 1 tooth sun wheel in a tooth differential meshing drive is proposed and the transmission ratio equivalent calculation is carried out. …”
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Study on Topological Modification Method Considering Torsional Deformation of Double Planetary Gear Shafts by Chen Xuehui, Pu Mingchun, Gao Ting, Zhang Xudong, Fang Weidong, Li Hao, Liu Wei

“…Based on the multi body gear bearing contact analysis (PLTCA) and the gear bearing contact analysis (LTCA), the bearing transmission error and the tooth surface load distribution coefficient under the deformation are solved; the optimization intelligent algorithm is used to solve the optimal solution of the modification parameters under the condition of the maximum modification amount of the tooth surface; the simulation results show that the proposed method can effectively reduce the unit length load of the tooth surface and the amplitude of the transmission error. …”
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Autotransplantation of Mandibular Third Molar: A Case Report by Pabbati Ravi kumar, Mandava Jyothi, Kantheti Sirisha, Khushboo Racca, Chalasani Uma

“…In selected cases, autogenous tooth transplantation, even after complete root formation of the donor tooth, may be considered as a practical treatment alternative to conventional prosthetic rehabilitation or implant treatment.…”
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Research on gear reliability based on improved fourth moment by WANG ChunRong, ZHOU FuPing, XIA ErDong, GAO Hao

“…Gear is the most commonly used transmission component, and its most common failure mode is tooth surface pitting and tooth root fracture. In order to analyze its reliability quickly and accurately, an improved fourth moment method considering failure correlation was proposed. …”
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Effects of an Educational Comic Book on Knowledge Related to the Safe Use of Fluoride Toothpaste in Children by Henrique Cesar de Souza Perez, Luciane Zanin de Souza, Flávia Martão Flório

“… Objective: To evaluate the effect of an educational comic book on indirectly supervised tooth brushing practices in early childhood education. …”
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Output Torque and Speed Influence by Trapped-oil of Gear Motor and Its Ripple Minimization Strategy by Rui Peng, Jianfeng Wang, Ziwen Sun

“…In order to clarify the influence mechanism of trapped-oil on output torque and speed of gear motor and its ripple minimization strategy，from its special trapped-oil characteristics analysis and two aspects of double tooth meshing and single tooth meshing，the proprietary calculation formula between partitions of output torque is established. …”
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RESEARCH ON AXIAL MODIFICATION OF CROWD REDUCER GEARS OF LARGE MINING ELECTRIC EXCAVATOR by ZHANG YingHui, HOU Geng, HE WeiDong, ZHOU Feng, RU XueBin

“…Using the thin slice gear model,statistical average load of excavator mining process is taken as the reference load of modification,the minimum contact stress of gears at the excavator mining position withmaximum statisticalcrowd force is regarded as the objective,the slope modification of the two stage pinion（driving wheel） of the crowd reducer is carried out.Further, no edge load at tooth surface in each mining location is regarded as the objective,the crown modification of the two stage pinion of the crowd reducer is carried out.In the process of excavator mining,compare with pinion without modification,the maximum stress（including contact stress of tooth surface and bending stress of tooth root）of thepinionwith modification decreases significantly,and the edge contact condition of tooth surface is obviously improved.After modification,when the gear is subjected to the statistical maximum load of excavator mining process,the stress value of the gearis still less than the allowable stress.Simulation results show that,axial modification of crowd reducer gears of large mining electric excavator has positive significance for improving carrying ability and contact condition of gears.…”
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lncRNA HHIP-AS1 Promotes the Osteogenic Differentiation Potential and Inhibits the Migration Ability of Periodontal Ligament Stem Cells by Qianyi Qin, Haoqing Yang, Chen Zhang, Xiao Han, Jing Guo, Zhipeng Fan, Jie Guo

“…Thus, HHIP-AS1 may be a potential target for accelerating tooth movement during orthodontic treatment.…”
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On Dynamic Mesh Force Evaluation of Spiral Bevel Gears by Xiaoyu Sun, Yongqiang Zhao, Ming Liu, Yanping Liu

“…Comparative studies considering the two factors are performed to explore appropriate approaches to estimate the dynamic meshing load on each contacting tooth flank of spiral bevel gears. First, a tooth pair mesh model is proposed to better describe the mesh characteristics of individual tooth pairs in contact. …”
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Study on Vibration Characteristics of a Shipboard Helicopter Tail Horizontal Shaft System with an End Gear Folding Mechanism by Li Miaomiao, Zhang Zhao, Zhu Rupeng, Wang Xi, Liang Fudong

“…A dynamic model of a shipboard helicopter end-tooth folding tail horizontal shaft system was established, and the vibration response of each support of the shaft system was solved and analyzed. …”
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Aesthetic Rehabilitation of a Patient with Bruxism Using Ceramic Veneers and Overlays Combined with Four-Point Monolithic Zirconia Crowns for Occlusal Stabilization: A 4-Year Follo... by André Moreira, Filipe Freitas, Duarte Marques, João Caramês

“…Management of severe worn dentition in patients with bruxism is challenging as a result of the loss of tooth structure and occlusal vertical dimension, temporomandibular implications, tooth hypersensitivity, and masticatory or aesthetic impairment. …”
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Simulation Analysis of the Forming Process of Tapered Multi-blade Scraper Tool by Guo Erkuo, Ren Naifei, Wang Jie, Zhou Changlu

“…Based on the meshing theory of crossed axes and the cutting process of tooth surface in gear skiving, the kinematics model of powerful tooth scraping and the cutting model of tapered multi-edge cutter are established. …”
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Micro-parameter Optimization of Helical Cylindrical Gear based on Romax by Hongfu Xing, Chaohui Yang, Nan Yu, Chao Xu, Jingliang Jiang

“…In the gearbox of main reduction helical cylindrical gear as the research object，by using Romax software，the gearbox model is established，combining the theory of microscopic parameters optimization of cylindrical bevel wheel，the transmission error，distribution of load per unit length of gear tooth surface and the contact spot are taken as the optimization objectives for microscopic gear modification，an omnidirectional modification method combining helical modification and tooth profile modification is proposed. …”
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Study on the Design and Load Capacity Calculation Method of Dual-lead Precision Worm Drives by Chen Yonghong, Jin Lianghua, Wang Zhigang, Yuan Hexiang

“…Based on the ISO/TS 14521 and using the relative calculation method, loading capacity calculation models for the transmission efficiency, tooth surface wear, tooth surface pitting and tooth root broken are developed. …”
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SIMULATION AND FINITE ELEMENT ANALYSIS OF SPUR GEARS WITH HIGH PRECISION GEAR INSERTION by WANG ZhongHou, HE ZhongYuan, WANG ZhenFei, YANG YongMing, LI Yan

“…The actual tooth surface is hardly obtained utilizing the existing simulation machining method. …”
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Gear Wear Monitoring based on Wavelet Packet Energy and Modulation Signal Bispectrum Sideband Estimator by Xinyu Wen, Ruiliang Zhang, Fengshou Gu, Pu Liu, Yandong Shi

“…Then， the MSB-SE is carried out to extract the characteristics of tooth surface wear， and the online monitoring of tooth surface wear damage state is realized by using a reasonable index. …”
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ERRORS ANAYSIS OF PLANAR INTERNAL GEAR SINGLE-ENVELOPING CROWN WORM DRIVE by SUN ShuMin, WANG JinGe, CHEN YongHong, WANG Shuang

“…The results show that: there are five pairs tooth surface are contemporary meshing,and the contact lines are straight line,as well as the contact lines are average distributed and along the tooth height; the negative values of centre distance error and worm axial displacement error are better than the true values of those; the shaft angle error,the inclination angle error and the base circle radius error are seriously affect the actual meshing status of the planar internal gear single-enveloping crown worm drive.…”
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