Canine Gouging: A Taboo Resurfacing in Migrant Urban Population by Anila Virani Noman, Ferranti Wong, Ravikiran Ramakrishna Pawar

“…The tooth was endodontically treated and then restored with composite. …”
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CONTACT ANALYSIS OF THE SPIRAL BEVEL GEAR BASED ON MATLAB by DONG ShuJing

“…In this paper,the use of local synthesis method,study the tooth contact analysis（ TCA） of the CRH5 traction gear by programming with MATLAB,respectively,calculate contact tracing line on the tooth surface and the graph of the transmission error of the middle point,huge end and small end respectively,and the graph is analyzed and explained,not only improves the direct use of TCA method to solve tooth contact,such as programming complex,time-consuming,and laid a good foundation for the rational design of cutting parameters of the spiral bevel gears.…”
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STUDY ON MESHING CHARACTERISTICS AND FATIGUE LIFE OF CYCLOIDAL SPUR GEARS WITH LOW SLIDING RATE by XU JianMin, ZHENG QingJie, LIU Kun, GONG XiaoYan, SONG Lei

“…In order to improve the transmission performance of gears,a low sliding rate cycloidal spur gear based on the meshing line principle was presented.Firstly,the equations of gear sub tooth profile and transition curve were derived from the gear meshing principle.Then,the maximum degree of overlap was calculated as 3.0134 based on the gear meshing principle and the overlap equation.Finally,computer simulation was conducted to analyze the stability,contact stress and fatigue life during the meshing process.The results show that the tangential meshing force between the teeth of the high overlap cycloidal gear is 1238.2 N,which is 5.24%smaller than that of the involute standard gear under the same working condition.The fatigue life analysis shows that the minimum fatigue life is 4.534×106times,and the tooth surface contact stress is mainly concentrated in the gear meshing position and the tooth root part,so the fatigue damage is easy to occur in the driving gear and driven gear meshing and tooth root part.…”
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Increasing Vertical Dimension of a Case with Full Mouth Rehabilitation: Case Report. by Radhwan H Hasan, Shilan H Fatah

“… Introduction: Bruxism is one of the most frequent causes for occlusal tooth wear, with the loss of tooth structure caused by mechanical wear between maxillary and mandibular tooth surfaces, case report was conducted to improve the patient oral health, and to maintain the new vertical dimension since it was lost by teeth clenching. …”
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Optimization and Analysis of Double-circular-arc Harmonic Gear based on Genetic Algorithm by Zhonglong Luo, Xiaochuan Peng

“…Firstly， based on the theoretical conjugate tooth profile of the flexspline obtained by the envelope method， then， one parameter optimization model （based on genetic algorithm） of double-circular-arc harmonic gear is established， which taking the fit degree of the two conjugate tooth profiles as the optimized goal. …”
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Research on Design Method of Cathode Profile for High Precision Electrolytic Machining of Spur Face Gear by Wei Jiang, Yan Cao, Feng Jia, Liang Huang

“…Firstly, based on complex tooth surface grid planning principle, the coordinate of each sampling tooth surface is calculated by section lofting method. …”
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TVMS Calculation and Dynamic Analysis of Cracked Gear considering Oil Film Stiffness by Jiateng Wu, Zhenqi Du, Chengbiao Tong

“…A time-varying meshing stiffness (TVMS) model that includes oil film stiffness in the elastohydrodynamic lubrication (EHL) line contact is proposed for tooth root cracking. This model employs the oil film thickness to estimate the stiffness of the oil film in gear contact by considering the profile variation of the oil film induced by tooth root cracks, to provide the evolution principle of TVMS in EHL line contact to study the effects of oil film stiffness of cracked gear on the TVMS. …”
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Management of Crown Root Fracture by Interdisciplinary Approach by K. Radhakrishnan Nair, Anoop N. Das, Manoj C. Kuriakose, Nandakumar Krishnankutty

“…Fracture of tooth after trauma is distressing to a person because of the discomfort and pain due to pulpal injury. …”
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Analysis of the Influence of Parameters in Asymmetric Gear with a Small Teeth Number on Temperature Field by Chen Ting

“…The distribution of the gear temperature field has a significant impact on the gear tooth surface gluing failures,which have a significant impact on the reliability and gear service life. …”
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Research of the Variation of Meshing Force of the Plastic Helical Gear and Steel Worm by Yun Yonghu, Hu Hong, Ta Jingning

“…In order to investigate the meshing force of the tooth surface of the plastic helical gear and the steel worm in the transmission process,the mechanical model of the meshing pair of plastic helical gear and steel worm is established by considering the load distribution between the meshing teeth. …”
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Analysis of the Influence of Progressive Wear of Helical Gear on Gear Vibration Characteristic by Xiuquan Sun, Tie Wang, Ruiliang Zhang, Fengshou Gu

“…The results show that the wear mainly occurs on the region close to the tooth root and tooth tip， and the maximum wear occurs at the tooth root due to the relative high sliding-to-roll ratio. …”
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Analysis on the Root Crack Propagation Path and Its Influencing Factor of Spur Gear by Qikun Liu, Shengli Wu, Zhi Li, Xiaochun Jian

“…Under the action of alternating load，the gear is easy to generate fatigue crack fault in the tooth root，and the crack propagation will not only affect the transmission accuracy，but even cause serious safety accident and economic loss. …”
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Advancing Orthodontic Aesthetics: Exploring the Potential of Injectable Composite Resin Techniques for Enhanced Smile Transformations by Davide Spadoni, Cristina Valeri, Vincenzo Quinzi, Ute Schneider Moser, Giuseppe Marzo

“…Due to the fluid properties of the composite, it efficiently fills the silicone tray and seamlessly integrates with the tooth structure, often obviating tooth preparation and preserving overall tooth integrity. …”
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Taphonomic and ecological insights from conspecific bite marks on Otodus megalodon teeth by Stephen J. Godfrey, Mark Bennett, Victor J. Perez

“…That these shallowly penetrating surface trace fossils were made as one O. megalodon tooth struck another is confirmed by the preservation of fine parallel gouges made when the serrated cutting edge of one tooth impacted and raked the surface of the receiving tooth. …”
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Nonsyndromic Bilateral Multiple Impacted Supernumerary Mandibular Third Molars: A Rare and Unusual Case Report by G. Siva Prasad Reddy, G. V. Reddy, I. Venkata Krishna, Shravan Kumar Regonda

“…A supernumerary tooth is that which is present additionally to the normal series and can be found in any region of the dental arch. …”
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A Multi-Disciplinary Approach in the Management of Endo-Perio Lesions: A 4-year Follow-Up Case Report by Stephani Dwiyanti

“…He complained of recurrent dull pain and abscess on his upper left tooth (tooth #26) that had been present for the past three years. …”
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Parameterized High-Precision Finite Element Modelling Method of 3D Helical Gears with Contact Zone Refinement by Yanping Liu, Yongqiang Zhao, Ming Liu, Xiaoyu Sun

“…Using the proposed model, the tooth load sharing ratio, static transmission error, meshing stiffness, root bending stress, and contact stress of the helical gear are obtained based on the quasistatic load tooth contact analysis. …”
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Efficacy of Dental Bleaching with Whitening Dentifrices: A Systematic Review by Bruno G. S. Casado, Sandra L. D. Moraes, Gleicy F. M. Souza, Catia M. F. Guerra, Juliana R. Souto-Maior, Cleidiel A. A. Lemos, Belmiro C. E. Vasconcelos, Eduardo P. Pellizzer

“…A systematic review was performed to evaluate whether whitening toothpastes promote tooth whitening when compared to the use of conventional (nonbleaching) dentifrices. …”
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CONTACT FATIGUE LIFE ANALYSIS OF INVOLUTE SPUR GEAR UNDER ELASTOHYDRODYNAMIC LUBRICATION by ZHANG Wei, WU Xing, XIAO ZhengMing, LIU XiaoQin

“…Mises equivalent stress distribution was obtained by explicit analysis and according to Smith-Watson-Topper contact fatigue calculation model,predicting the tooth-contact fatigue life. The result shows that with the increase of the degree of overlap,the danger zone alone the tooth profile closes to the node and the fatigue life also increases. …”
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Impact of Orthodontic Decompensation on Bone Insertion by Fabio Pinto Guedes, Leopoldino Capelozza Filho, Daniela Gamba Garib, Hugo Nary Filho, Evandro José Borgo, Mauricio de Almeida Cardoso

“…There has always been concern in determining the relationship between orthodontic tooth movement and the consequent biological costs to the periodontium and tooth root. …”
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