Analysis of Load Sharing of Planetary Gear Train Considering the Flexibility of Planet Carrier by Xu Hongbin, Xu Taojin, Huang Yongping

“…The results show that,when using the accurate 3D model of planet carrier and considering the flexible of it,the deformation of the planet carrier is effected by the variable engagement force and tooth deformation. The deformation of the planet carrier connected to different pin is different,but the torsional deformation of input stage is larger than output stage generally. …”
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Contact Strength Analysis of Azimuth Gear Transmission System of Two-axis Tracking Device by Li Shiqing, Peng Youduo, Chen Yu

“…The contact strength of the tooth surface is analyzed and calculated by using the Hertz theory. …”
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Fuzzy Robust Modification Design of EMU Transmission Gear by Ziqiang Sheng, Yuedong Wang, Xiaoning Bai, Shenxuan Wang

“…Considering the influence of fuzzy factors in the design of gear robust modification based on the improved tolerance model， it is not only improves the offset load condition of the tooth surface， but also improves the robustness and rationality of the modification results.…”
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Periodontal Diseases: Major Exacerbators of Pulmonary Diseases? by Bakey Kouanda, Zeeshan Sattar, Patrick Geraghty

“…Periodontal diseases are a range of polymicrobial infectious disorders, such as gingivitis and periodontitis, which affect tooth-supporting tissues and are linked to playing a role in the exacerbation of several pulmonary diseases. …”
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Mandibular Symmetrical Bilateral Canine-Lateral Incisors Transposition: Its Early Diagnosis and Treatment Considerations by Yehoshua Shapira, Tamar Finkelstein, Rana Kadry, Shirley Schonberger, Nir Shpack

“…Bilateral mandibular tooth transposition is a relatively rare dental anomaly caused by distal migration of the mandibular lateral incisors and can be detected in the early mixed dentition by radiographic examination. …”
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A Clinical and Radiographic Evaluation of Zirconia Dental Implants: 10-Year Follow-Up by Andrea Enrico Borgonovo, Susanna Ferrario, Carlo Maiorana, Virna Vavassori, Rachele Censi, Dino Re

“…Materials and Methods. 10 patients were selected and 26 one-piece zirconia implants were used for the rehabilitation of single tooth or partially edentulous ridge. After 10 years, a clinical-radiographic evaluation was performed in order to estimate peri-implant tissue health and marginal bone loss. …”
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An Unusual Erupted Complex Composite Odontoma: A Rare Case by Dawasaz Ali Azhar, Mohammad Zahir Kota, Sherif El-Nagdy

“…Odontomas are malformations of the dental tissues and may interfere with the eruption of the associated tooth. Complex composite odontoma (CO) was described as a distinct entity for the first time by Broca in 1866. …”
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CLINICAL TRIAL ASSESSING THE PREVALENCE OF ORAL COMPLICATION IN A DENTURE WEARERS POPULATION by Cosmin Bida, Doriana Agop-Forna, Dana Gabriela Budala, Norina Forna

“…Psychological factors related to tooth loss and aging further complicate the presentation of these disorders. …”
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Research on Prediction of Wear Amount in the Gear Transmission Process Under Complex Working Conditions by Tang Aiwu, Chen Tianyou

“…The increased wear will increase the non-linear backlash of the gear teeth, reduce the transmission accuracy and increase the impact force of the tooth surface, which will lead to aggravated vibration of the gear transmission system, and impose great impact on the gear transmission performance and the stable operation of the equipment. …”
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Optimization Design of Structure Parameter of Wheel Hub Reducer based on PXI by Liu Qing, Wu Qibin

“…Based on the structural characteristics of the secondary planetary wheel hub reducer,the number of teeth,modulus and tooth width are used as design variables under the condition of keeping the total gear ratio unchanged. …”
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Analysis of Optimum Lubricant Quantity of Electric Vehicle Reducer based on Moving Particle Semi-implicit Method （MPS） by Xiang Wang, Bo Zhu, Mingyao Yao, Nong Zhang, Xijian Liu, Zhihang Zhang, Shiyu Zhang

“…The modified results indicate that under high-temperature and high-load conditions of electric vehicle reducers，a smaller amount of lubricating oil will cause the gears of reducer to be under-lubricated， resulting in higher tooth surface temperatures. Combining the thermal network model with the moving particle semi-implicit method （MPS） provides a new method for the lubrication effect analysis of electric vehicle reducers.…”
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Establishment of the Virtual Prototyping of Angular Transmission Error of RV Reducer based on Multi-body Dynamics Simulation by Chang Anquan, Zhang Yinghui, He Weidong, Wang Xiaoyu

“…Then the angular transmission error of RV reducer under the condition of special tooth profile modification of cycloid gear and different quantity of bearings clearance are checked by multi-body dynamics simulation,which providing a new modeling ideas and methods for studying the effect of cycloid gear profile modification and bearing clearance on angle transmission of RV reducer with multi-body dynamics simulation.…”
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STUDY ON FATIGUE LIFE OF HYDRAULIC TENSION BAR OF SHEARERS by HAO ZhiYong, LEI YaoLong, MAO Jun, ZHANG FengJia

“…The maximum stress point is close to the end point at the root of the first thread tooth,of which the number is 1386 MPa,the triple thread teeth bear over 50% of the full load; the position on which fatigue crack occurs first is at the root of the thread teeth in the screw part of the hydraulic tension bar; assuming that the daily continuously working time for shear is 12 hours,the hydraulic tension bar starts to crack at the 53 rdday. …”
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CASE PRESENTATION:FRACTURED NEEDLE IN THE PTERYGOMANDIBULAR SPACE AFTER AN INFERIOR ALVEOLAR NERVE BLOCK by Precup Alexandru Iosif, Precup Andrada, Băciuț Mihaela Felicia, Mădălina Anca Moldovan, Iurcov Raluca Ortensia, Bumbu Bogdan Andrei

“…In this article we present the case of a 32 year old male patient, who experienced an inferior alveolar nerve block for the endodontic treatment of the tooth 47 at a private dental office. During the nerve block on the right side, a 30 G disposable needle tore and shifted posteriorly in the pterygomandibular space. …”
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Periodontal Regenerative Treatment of Intrabony Defects Associated with Palatal Grooves: A Report of Two Cases by Stefano Corbella, Alice Alberti, Beatrice Zotti, Luca Francetti

“…A palatal radicular groove (PRG) is a morphological deformity, occurring during tooth development. It is usually located on the palatal aspect of maxillary incisors and frequently associated with periodontal or endodontic-periodontal lesions. …”
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Clear Aligner Treatments in Orthoperio Patients by Gianluca Mampieri, Roberta Condò, Giovanni Di Caccamo, Paola Pirelli, Aldo Giancotti

“…Moreover, aligners enable to plan 3D tooth movements, root placement, staging, and range of dental movements, alongside the improvement of oral hygiene. …”
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Effect of the micro-texture on gear meshing noise under oil lubrication and dry friction by ZHANG Longchang, CHEN Qi, GUAN Yingchun, LI Xing, YAO Hanbo, QING Zhenhua

“…It is necessary to understand the influence of micro texture on gear meshing noise under oil lubrication and dry friction conditions.MethodsA gear meshing noise calculation model was built, laser processing technology was used to manufacture micro-textured gears, a gear noise detection platform was built, and the mesh noises of micro-textured gears and non-textured gears were tested and analyzed under oil-lubricated and dry friction conditions.ResultsThe test results show that the micro-texture can help reduce gear meshing noise under both oil lubrication and dry friction conditions, at the same time, and verify the validity of the calculation model of the tooth surface meshing noise.…”
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A Rare Complication in an Untreated Horizontal Root Fracture Case by Fatih Tulumbacı, Volkan Arıkan, Aylin Akbay Oba, Fethi Atıl

“…The successful treatment of a root-fractured tooth involves repositioning and fixation. Although the outcome of a root fracture is generally favourable, complications such as pulpal necrosis, radicular resorption and pulpal canal obliteration can arise. …”
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Transmission Precision Analysis of Planetary Line Gear Transmission based on Assembly Error by Ting Geng, Yuting Wei, Aiping Deng, Jiang Ding

“…The causes of the angle error and displacement error are analyzed， both between the planetary line gear and the sun line gear and between the outer ring line gear and the planetary line gear. Tooth Contact Analysis （TCA） is subsequently adopted to carry out the numerical analysis of the assembly errors model for the line gear transmission. …”
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Accurate Modeling and Application of Time-varying Mesh Stiffness of Spur Gear Pair based on Geometry and Potential Energy Method by Wang Xiaopeng, Liu Shijun Li Jiqiang

“…On the allowable range of bearing capacity for gear design，it is necessary to select tooth width and shaft diameter reasonably which makes minor adjustments for TVMS. …”
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