Design and Analysis for the Double-roller Gear Longitudinal Torsional Compound Ultrasonic Rolling System by Jinhao Gao, Wen Shao, Yuhui He, Jinyuan Tang

“…The longitudinal torsional compound vibration displacement and trajectory at the tooth surface are calculated by FEM with spiral grooves in the conical section and the assembled gear. …”
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Prevalence of canine impaction among Kurdish people in Kurdistan region of Iraq. by Anees Mahmood Mudhir, Omar Fawzi Chawshli, Liqaa Jabur Hassan

“… Background and Objective: The permanent canine is the second most frequently impacted tooth following the third molars. The etiology of the impacted canine is ambiguous, but also multifactorial. …”
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Experimental assessment of damage and microplastic release during cyclic loading of clear aligners. by Claudia Barile, Claudia Cianci, Vimalathithan Paramsamy Kannan, Giovanni Pappalettera, Carmine Pappalettere, Caterina Casavola, Michele Laurenziello, Domenico Ciavarella

“…The cumulative damage results in a compromised fit between the tooth and aligner, which is crucial for the effective execution of orthodontic treatment. …”
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Step-by-Step Esthetic Rehabilitation with Chairside System by Rim Kallala, Mohamed Habib Chaouch, Karim Nasr, Teva Courset

“…The present paper is about a healthy female patient with a decayed 36 tooth which was restored by ceramic onlay using Planmeca’s PlanCAD system. …”
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Comparative In vitro Analysis of Push-Out Bond Strength of Different Root Canal Sealers to Root Dentin by Joyeta Ghosh, Bhagyesh J. Cheta, Yogesh V. Rathod, Richa Pathak, Shruti A. Nayak, K Vishnu Prasad

“…Following obturation with Gutta Percha, each tooth was prepared with root portions that were 2 mm thick at the apical and middle 1/3 so that universal testing equipment could measure the push-out bond strength. …”
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Determination of an Optimal Oil Jet Nozzle Layout for Helical Gear Lubrication: Mathematical Modeling, Numerical Simulation, and Experimental Validation by Yu Dai, Jifu Jia, Bin Ouyang, Jianeng Bian

“…Then, the transient temperature field of the tooth surface was simulated by the method of thermal-fluid coupling analysis, and the lowest temperature distribution and the corresponding oil jet velocity were determined. …”
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Host-Bacteria Crosstalk at the Dentogingival Junction by M. T. Pöllänen, M. A. Laine, R. Ihalin, V.-J. Uitto

“…Furthermore, not only the shift of the bacterial flora to a more pathogenic one, but also bacterial growth as a biofilm on the tooth surface, allows the bacteria to communicate with each other and exert their virulence aimed at favoring their growth. …”
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Root Canal Stripping: Malpractice or Common Procedural Accident—An Ethical Dilemma in Endodontics by Ionela Elisabeta Ciobanu, Darian Rusu, Stefan-Ioan Stratul, Andreea Cristina Didilescu, Corina Marilena Cristache

“…Its occurrence may drastically affect the outcome of the treatment, transforming a common otherwise efficient endodontic procedure into a complication such as tooth extraction. In order to discuss the ethical and legal consequences, two cases of dental strip perforations are herewith presented. …”
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A case series on the basic concept and design of removable partial dentures: support and bracing considerations by Jun Takebe

“…A Case Series Study Case presentation: The case series highlights the importance of utilizing the contact between the axial surface of the abutment tooth and denture components to provide effective support and bracing action. …”
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Structure Optimization of Chain Plate of Double-pitch Silent Chain for Conveyor by Tian Hui, Wang Wencheng, Zhao Haixian, Fu Xintao, Wang Feng, Liu Chunzhe

“…By the general comparison,the optimal construct parameters are obtained. When the sprocket tooth number is 38,the height Y of protrusion length is 0. 25 P_S,and the value δ of protrusion length is 0. 013 P_S,the internal and external composite engage process of chain can be realized,and the meshing impact force is smallest and structural is optimum at that time.…”
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Efficacy of Esthetic Retainers: Clinical Comparison between Multistranded Wires and Direct-Bond Glass Fiber-Reinforced Composite Splints by Andrea Scribante, Maria Francesca Sfondrini, Simona Broggini, Marina D'Allocco, Paola Gandini

“…Since splints were applied the number, cause, and date of splint failures were recorded for each single tooth over 12 months. Statistical analysis was performed using a paired 𝑡-test, Kaplan Meier survival estimates, and the log-rank test. …”
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EFFECTS OF ORTHODONTIC TREATMENT ON PERIAPICAL HEALTH IN ENDODONTICALLY TREATED TEETH by Kantor Ianos, Sorana Maria Bucur, Ioana Todor, Ștefania Dinu, Cristina Nuca, Fulop Botond, Mariana Păcurar

“…Post-treatment assessment revealed that 21 teeth (66%) had root canal fillings of correspondent length, while 10 teeth (31%) were insufficient, and 1 tooth (3%) was uncertain. In terms of density and homogeneity, 25 teeth (78%) were classified as correspondent, 5 teeth (16%) as inadequate, and 2 teeth (6%) as uncertain. …”
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Gear Defect Modeling of a Multiple-Stage Gear Train by Andrew Sommer, Jim Meagher, Xi Wu

“…Backlash between gear teeth which is essential to provide better lubrication on tooth surfaces and to eliminate interference is included as a defect and a necessary part of transmission design. …”
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Simple Orthodontic Correction of Rotated Malpositioned Teeth Using Sectional Wire and 2×4 Orthodontic Appliances in Mixed-Dentition: A Report of Two Cases by S. Nagarajan M. P. Sockalingam, Ahmad Shuhud Irfani Zakaria, Khairil Aznan Mohamed Khan, Fayyadhah Mohd Azmi, Nurhidayah Muhd Noor

“…The correction of rotated malpositioned tooth/teeth into the dental arch alignment in the mixed-dentition is often a challenging task for paediatric dentists. …”
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The Four Pillars for Successful Regenerative Therapy in Endodontics: Stem Cells, Biomaterials, Growth Factors, and Their Synergistic Interactions by C. Brizuela, George T.-J. Huang, A. Diogenes, T. Botero, M. Khoury

“…This review brings useful and timely clinical evidence for practitioners to understand the challenges faced for a successful cell-based RET and the importance of preserving or reestablishing tooth vitality. The clinical translation of these current bioengineering approaches will undoubtedly be beneficial to the future practice of endodontics.…”
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Effect of Pore-Scale Mineral Spatial Heterogeneity on Chemically Induced Alterations of Fractured Rock: A Lattice Boltzmann Study by Hossein Fazeli, Ravi Patel, Helge Hellevang

“…In case of initially banded structures, a comb-tooth zone will form and the same behavior as above is observed; however, in this case, permeability is usually less than that of mixed structures.…”
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Comparative Evaluation of Efficacy of Herbal and Chlorhexidine Mouthwash on Gingival Health by Vaishnavi Senkalvarayan, Priya Kesavan, Jayachandran Dorairaj, R Madhumala, Saranyan Ravi, Ann Theresa Tomy

“…When used for a longer duration, it produces taste alteration and staining on the tooth surfaces. Nowadays, herbal extracts from plants have been widely used as they possess anti-inflammatory, antimicrobial and analgesic actions. …”
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Clinical Evaluation of Solitary Median Maxillary Central Incisor Syndrome by Malaz M. Mustafa, M. Zakirulla, Ibrahim AlShahrani, Rafi A. Togoo, Zuhair M. Alkahtani, Tasneem S. Ain

“…It is estimated to occur in 1 : 50,000 live births. The SMMCI tooth differs from the normal central incisor in that the crown form is symmetric and it develops and erupts precisely in the midline of the maxillary dental arch in both primary and permanent dentitions. …”
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Assessment of Debris Extrusion in Curved Canals: An In Vitro Analysis of Various Single-File Endodontic Instrumentation Systems by Muhammad Zubair Ahmad

“…The weight of the extruded debris was recorded by subtracting the weight of the tooth-free apparatus from the post-procedure weight. …”
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Resolution of Abfraction-Associated Gingival Fenestration Utilizing Connective Tissue Grafting by Braydon Haskell, J. Kobi Stern, Jordan Ghiassi, Andrew Kurialacherry, Sadja Gaud-Quintana, Mark E. Peacock

“…Clinical exam revealed a gingival fenestration on the facial of tooth #11, associated with what appeared to be a pronounced noncarious cervical lesion (NCCL). …”
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