Peri-implant soft tissue conditioning of immediate posterior implants by CAD-CAM socket sealing abutments: a randomized clinical trial by Mai Mohamed Elgendi, Iman Salah Eldin Hamdy, Hanaa Ibraheem Sallam

“…Conclusion After one year of clinical observation period, CAD-CAM PEEK socket sealing abutments together with flapless minimally invasive tooth extraction and 3D guided implant placement provided superior outcomes compared to Ti SHA in terms of peri-implant soft tissue profile. …”
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Is It Possible to Achieve Favorable Accelerated Dental Changes with No Periodontal Complications When Retracting Upper Anterior Teeth Assisted by Flapless Corticotomy Compared to T... by Hanin Nizar Khlef, Mohammad Younis Hajeer

“…The objective of this trial was to evaluate the dental changes, periodontal health, and tooth vitality in mini-screw-supported en-masse retraction with two corticotomy-based acceleration techniques. …”
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Anaesthetic efficacy of intraligamentary injection compared to incisive nerve block using 3% mepivacaine hydrochloride: a randomized clinical trial by Suzan Salem, Islam Saad, Ramy Elmoazen, Ghada Amin Khalifa

“…Abstract Background In dentistry, local anesthetic is frequently used to manage pain throughout several phases of dental treatments, including tooth extraction. The study aimed to compare the effectiveness of two techniques for controlling pain during mandibular exodontia (tooth extraction), specifically focusing on the pain experienced during injection and extraction of mandibular anterior and premolars teeth. …”
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Permanent Canine Morphometrics in the Saudi Arabian Population: A Sex-Based Comparison Using Mesiodistal and Cervicoincisal Widths by Sami Aldhuwayhi, Yahya Deeban, Angel Mary Joseph, Mohammed Ziauddeen Mustafa, Amar Ashok Thakare, Sara Alghamadi, Sreekanth Kumar Mallineni

“…A total of 94 sets of dental casts of patients with a mean age of 24.6 ± 4.06 were available in the study for evaluation. Tooth 13 was found to have a higher mesiodistal width (8.12 ± 0.57 mm), while tooth 43 was observed to have a higher cervicoincisal width (9.3 ± 0.9 mm). …”
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Determination of Palatal Soft Tissue Thickness and Safe Zone for Palatal Soft Tissue Harvest Using CBCT: A Retrospective Study by Hanan Aldhanhani, Bhavna Jha Kukreja, Sesha Reddy, Jovita D’souza, Hossam Abdelmagyd

“…The relationship between palate soft tissue thickness in relation to each tooth, palatal vault angle, teeth, and the greater palatine grove was evaluated. …”
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Remineralising Effects of L-arginine Fluoride Mouthwash versus Sodium Fluoride Mouthwash: A Protocol of an In-vitro Study by Anjori Ajinkya Raut, Punit Ratnakar Fulzele

“…Despite breakthroughs in preventive dentistry, oral infections and tooth decay remain common among children, highlighting the need for novel and efficient preventive interventions. …”
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Removal of an Upper Third Molar from the Maxillary Sinus by Klinger de Souza Amorim, Vanessa Tavares da Silva, Rafael Soares da Cunha, Maria Luisa Silveira Souto, Carla Rocha São Mateus, Liane Maciel de Almeida Souza

“…Dislocation of a foreign body or tooth to the interior of a paranasal sinus is a situation that can occur as a result of car accidents, firearm attacks, or iatrogenic in surgical procedures. …”
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Management Modalities of Mandible Fracture and Dental Trauma in Pediatric Patients During Mixed Dentition Phase: A Series of Case Study by Lomtu Ronrang, Alice Lyngdoh

“…Our treatment modalities show that this method can be easily applied in cases of any slightly displaced mandibular fracture in children during mixed dentition periods while taking utmost care of permanent tooth buds compared to other invasive methods of pediatric mandibular fracture management. …”
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Analysis on Fatigue Life and Mechanical Property of Flexspline of Harmonic Reducer by Can Wu, Menglun Tao, Dingfang Chen, Junfeng Wu, Weiming Shu, Fang Chen, Huiming Zhang

“…The relationship between the maximum stress and the length，wall thickness and tooth width of the flexspline are explored by orthogonal experiment. …”
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Replacement of Missing Anterior Teeth in a Patient with Temporomandibular Disorder by Satheesh B. Haralur, Omar Saeed Al-Shahrani

“…Prosthesis design should eliminate deleterious tooth contacts. Establishing optimum anterior guidance is a key to establishing harmonious functional occlusion in addition to the correction of the esthetic and phonetic disabilities. …”
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Analysis of the Thermo-elastic for Involute Spur Gear Transmission with Logarithmic Modification by Jin Tingting, Wang Jiugen, Wang Zhenrong

“…Aiming at the involute spur gear with logarithmic modification,according to the heat conduction differential equation and the basic equations of thermo-elasticity,the thermal and thermo-elastic fields of involute spur gear at any meshing position are obtained by using the FFT and IFFT programming calculation,the influence of the torque and rotational speed on temperature field and thermal elastic field is discussed.The results show that,the logarithmic modification can reduce the strong thermal at the edges of the gear tooth caused by the edge effect,thus the scuffing resistance,accuracy and thermal fatigue life of gears are improved.The rising of either torque or rotational speed can intensify the temperature field and thermo-elastic field of gear,and the modification amount should be designed in terms of torque in order to avoid the edge effect.…”
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FUZZY RELIABILITY ANALYSIS OF CONTACT FATIGUE STRENGTH OF DOUBLE SHOCK SLEEVE MOVABLE TEETH TRANSMISSION BASED ON AN IMPROVED RSM by LIU Jun, AN ZiJun

“…An improved RSM was proposed to improve the computational efficiency and accuracy of contact fatigue fuzzy reliability analysis of double shock sleeve movable teeth transmission.Based on fuzzy theory,an improved RSM model is established by combining intelligent algorithm and reliability analysis method.Based on the theory of stress-strength interference,the interference reliability model is established with moment,elastic modulus,Poisson’s ratio and working tooth length are taken as input random variables and contact strength of meshing pair is taken as input fuzzy variables.Fuzzy reliability is calculated by different methods,and the distribution characteristics and fuzzy reliability of each response result are obtained.The comparison shows that the improved RSM improves the speed and accuracy of the calculation.…”
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Research on the Influence of the Circumferential Backlash on the Gear Meshing Transmission Precision of Small Steering Gears by Chen Xuan, Zhang Liyong, Zhang Hanlin, Zhang Yu, Jiang Yehu, Li Chengyu, Yuan Fengxia

“…Within the allowable range of the circumferential backlash of each gear group, the changes of different circumferential backlashes are obtained by adjusting the tooth thickness of the gear group. The simulation of acceleration, deceleration and forward and reverse rotation of the steering gear model shows that when the circumferential backlash is 0.130 mm, the accuracy of the output gear 8 of the steering gear is relatively high and the return error is small. …”
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Management of Grossly Decayed Mandibular Molar with Different Designs of Split Cast Post and Core by Rashmi Bansal, Nakul Mehrotra, Priyanka Chowdhary, Anuraag Gurtu

“…Mandibular molar with extensive loss of tooth structure, especially where no cavity wall is remaining, and insertion of posts in both the roots appear necessary so as to achieve proper retention for the core material. …”
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STUDY ON ULTRASONIC VIBRATION MILLING FORCE OF OPTICAL GLASS MATERIAL by ZHAO Jie, FU ZongXia

“…In view of the problems such as low efficiency and surface cracks in optical glass processing,the experiment studied the influence of cutting parameters and acoustic parameters on milling forces and established a milling force model of optical glass ultrasonic vibration that based on the high frequency impact effect of ultrasonic vibration,through which on ultrasonic vibration milling of optical glass.The effects of factors such as milling speed,feed per tooth and milling depth on milling force were discussed through comparative experiments on ultrasonic vibration milling and conventional milling of optical glass.The experimental results show that under ultrasonic milling,the milling force is significantly lower than the conventional milling force.…”
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Use of the mineral trioxide aggregate (MTA) in teeth with apical incomplete formation by Lissete Liliana Mendoza Cama, Juvenal González León de Peralta

“…The diagnosis was symptomatic irreversible pulpitis in young permanent tooth with incomplete apical formation in null stage 8. …”
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Failure Analysis for Teeth Broken of a Gearbox by Donghai Gao

“…The analysis of assembly relationship of layshaft assembly， the axis clearance eliminated because of the synchronizer hub position shifting is the cause of tooth fracture. For gearbox shaft assembly included many components， correct assembly relationship between each other， and reliable fixation of assembly position have an important influence on the reliability of gear.…”
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Time-varying Mesh Stiffness Calculation of Planetary gear based on Improved Energy Method by Zhang Huiling

“…For each pair of planetary gear meshing time-varying meshing stiffness are discussed,considering the wheel body stiffness,energy method is applied to solve more accurate tooth meshing stiffness. On the basis of this method,the timevarying meshing stiffness of sun wheel,planetary wheel and internal ring gear when crack exists in each pair in meshing is calculated and the effects of crack depth and angle on time-varying meshing stiffness are explored.The research provides theoretical help for the mastery of planetary gear fault mechanism.…”
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Optimum Design of Load Capacity of Cycloidal Pin Wheel by Leilei Xu, Jianxin Su

“…In order to optimize its load capacity， an optimization mathematical model with the minimum contact stress and the maximum meshing stiffness is constructed by taking the pin tooth distribution circle radius， short amplitude coefficient， pin diameter coefficient and cycloidal wheel width as design variables. …”
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Study on a Mathematical Model of the Vibration Transmission Path of Multistage Transmission Gearboxes by Kong Zhaoyi, Li Fan

“…Vibration source, time-varying transmission path and multistage transmission gear vibration frequency characteristics are considered comprehensively, an equivalent time-varying transmission path function from the meshing point to the accelerometer mounted on the ring tooth is proposed and the time-varying transmission path is modeled as having different periodic function of decay amplitude. …”
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