Novel frameshift variant of WNT10A in a Japanese patient with hypodontia by Michiyo Ando, Yoshihiko Aoki, Yasuto Sano, Junya Adachi, Masatoshi Sana, Satoru Miyabe, Satoshi Watanabe, Shogo Hasegawa, Hitoshi Miyachi, Junichiro Machida, Mitsuo Goto, Yoshihito Tokita

“…Abstract Congenital tooth agenesis is caused by the impairment of crucial genes related to tooth development, such as Wnt signaling pathway genes. …”
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Unilateral Fusion of Maxillary Lateral Incisor: Diagnosis Using Cone Beam Computed Tomography by Iury Oliveira Castro, Carlos Estrela, Vinícius Rezende Souza, Lawrence Gonzaga Lopes, João Batista de Souza

“…CBCT confirmed the presence of tooth fusion. Conclusion. CBCT examination supports the diagnosis and provides both the identification of changes in tooth development and the visualization of their extent and limits.…”
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Study on Modeling and Simulation of Spiral Bevel Gear by Zhang Famin, Li Meng

“…According to the principle of space meshing,the equation derivation process of the tooth line on the cones of spiral bevel gear is introduced,and the tooth line equation of the expression with different cone angles is achieved.By using the Pro/E parametric modeling software,the 3Dsolid model models of a pair of spiral bevel gear in a certain type of vehicle transmission system is built,and the assembly,interfere check in the process of the dynamic mesh are carried out.Through the analysis of interference zone,the method of adjusting the gear tangential modification coefficient is proposed,and the assembly model of spiral bevel gear meshing pair is obtained,the advantageous condition for the finite element analysis of further is provided.…”
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Temperature Field Analysis of Grinding Face Gear by Ning Zhao, Jia Zhai, Shaojie Hou, Qian Yang, Tao Yang

“…The principal directions and corresponding curvatures at grinding point on face gear tooth surface are derived according to meshing theory and differential geometry theory. …”
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Research of Multi- Objective Optimization Design for Car Main Reduction Gear based on Response Surface Method by Zhou Dan

“…The main reducing gear parameter optimization are carried out by using the NSGA- Ⅱ multi- objective optimization genetic algorithm in which the tooth root bending stress,tooth surface contact stress and volume of the gears are defined as objective function,the solution set of the gears parameters are obtained. …”
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Finite Element Analysis of Meshing Stiffness of Harmonic Gear by Wei Leyu, Wang Changlu, Zhang Liyong, Liu Xinmeng, Qiao Xuetao, Wang Ruifeng

“…According to the finite element analysis theory of loading contact,and combining with its static and dynamic contact properties,taking each different location during one engaging-in and engaging-out cycle of a tooth as the research object. Then,by extracting the meshing data of discrete point on contact location,the curve of single-tooth stiffness and the synthesizing meshing stiffness in one engaging-in and engaging-out is got. …”
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Dental Trauma. A Case Report by Alain Soto Ugalde, Berbardina Maya Hernández

“…This paper presents the diagnosis, treatment and outcome of a child with a 12 mm overjet, mouth breathing habit and bilabial incompetence who suffered a severe trauma to tooth number 11, causing its mobility. A splint was applied to the affected tooth and subsequently, a root canal filling was performed, all with a satisfactory outcome. …”
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STUDY ON FAILURE MODE AND COUNTERMEASURES OF SHEARER PICKS by ZHAO LiJuan, ZHAO MingYang, LIU XuNan

“…In order to improve the efficiency of coal mining and the service life of shearer,the failure mode and the reasons of cutting teeth were analyzed,and the influence caused by cutting tooth failure was described,in view of the selection,research and development design,manufacturing process and use of cutting teeth in different geological conditions,the countermeasures were discussed,and the quality of cutting teeth is improved by means of reasonable selection of the type of cutting tooth,the geometrical parameters,the optimized blade spiral angle,the application of tribology theory,the use of new cutting material,the surface strengthening and the operation of the workers. …”
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Quadruple-arc Gear Form Grinding Wheel cross-section shape design and calculation by Zhao Yi, Ren Zhongyi, Duan Jianzhong

“…Through the quadruple- arc gear tooth surface equation and gear tooth surfaces in contact with the grinding wheel surface condition,the grinding wheel cross- sectional shape is obtained by using space coordinate transformation. …”
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Multi-objective Process Optimization Analysis of Cold Rotary Forging for Hypoid Gear by Dang Yugong, Gao Zhenshan, Lu Yangben, Deng Xiaozhong

“…According to the requirement of anti-fatigue manufacture and characteristics of hypoid gear tooth profile,a special cold rotary forging scheme is put forward. …”
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Parametric Modeling and Multi-body Dynamics Simulation of RV Reducer by Qi Lu, Weidong He

“…Considering the small period factors that affect the angular transmission error of RV reducer， the diameter of the needle tooth center circle and the diameter of the needle tooth groove in the same assembly dimension chain are selected to combine the errors， and the dynamics simulation is carried out under rated working conditions，the variation rule of the angular transmission error is analyzed.…”
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Non-Instrumental and Instrumental Tools Validity in Bruxism Diagnostics by Adrian Marcel Popescu, Mihaela Ionescu, Diana Elena Vlăduțu, Sanda Mihaela Popescu, Iulia Roxana Marinescu, Monica Scrieciu, Veronica Mercuț

“…The tests showed a low sensitivity (15%) but a high specificity (83%) for tooth wear. The absence of tooth wear was frequently associated with the absence of bruxism, while the presence of tooth wear did not necessarily imply the existence of bruxism. …”
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A Semi-analytical Calculation Method for Time-varying Meshing Stiffness and Transmission Error of Spiral Bevel Gear by Liao Ping, Wei Jing, Zhang Aiqiang, Zhang Weiqing

“…The meshing stiffness of single node was introduced into the traditional calculation method, and the meshing stiffness of each node on the working tooth surface is superimposed to obtain single tooth meshing stiffness, the calculation accuracy is higher. …”
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Localized Bone Loss Resulted from an Unlikely Cause in an 11-Year-Old Child by Bianca Tozi Portaluppe Bergantin, Daniela Rios, Daniela Silva Barroso Oliveira, Edmêr Silvestre Pereira Júnior, João Adolfo Costa Hanemann, Heitor Marques Honório

“…In this case report, an 11-year-old child who lived in a rural area and has never been treated by a dentist presented an extensive horizontal bone loss and edema on the region of tooth 44. The diagnosis of foreign body was obtained after biopsy, since an elastic band around the middle of the root tooth was found. …”
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Marginal Strength of Collarless Metal Ceramic Crown by Sikka Swati, R. Chowdhary, P. S. Patil

“…Maxillary right canine typhodont tooth was prepared to receive a metal ceramic crown with shoulder margin. …”
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Engagement and Contact Analysis of Coiled Tubing Injector Head Chain Drive by Hu Zheng, Ma Weiguo, Qu Baolong, Liu Xuehang

“…The increase of the angle between the tension side and the vertical direction of the chain has little effect on the engaging-in position and the tooth surface support reaction force, the engaging-out position of the chain rollers is close to the bottom of the sprocket teeth. …”
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Portland Cement Use in Dental Root Perforations: A Long Term Followup by Álvaro Henrique Borges, Matheus Coelho Bandeca, Mateus Rodrigues Tonetto, Luis Augusto Faitaroni, Elibel Reginna de Siqueira Carvalho, Juliane Maria Guerreiro-Tanomaru, Mário Tanomaru Filho

“…In the first case, a patient presented tooth 46 with unsatisfactory endodontic treatment and a periapical radiographic lesion. …”
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Mild Late-Onset Sensory Neuropathy Associated with Heterozygous Missense GDAP1 Variants by Nivedita U. Jerath

“…This study presents the clinical and electrophysiological findings of four subjects with a pathogenic heterozygous GDAP1 variant causing Charcot–Marie–Tooth disease 2K (CMT2K) and one additional subject with an uncertain GDAP1 variant and clinical findings of CMT 2K. …”
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Experimental of Micropitting Corrosion of Gear based on Profile Modification by Dongfei Wang, Shijun Liu, Lü Pangong, Jiqiang Li, Deming Meng

“…The variation of micro pitting corrosion on the tooth surface is reflected by measuring the profile fluctuation deviation and the tooth surface morphology. …”
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A New Measuring Method of Manufacturing Error for Cycloid Gear of Robot RV Reducer by Zhou Junxiang, Li Tianxing, Wei Bingyang, Deng Xiaozhong, Zhou Guangcai, Wang Guofeng, Xing Chunrong

“…A new measuring method setting the node as single tooth reference point for manufacturing error of cycloid wheel is proposed. …”
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