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1261
Keratinized Gingiva Determines a Homeostatic Behavior of Gingival Sulcus through Transudation of Gingival Crevice Fluid
Published 2011-01-01“…Tissue fluid transudation was assessed in alveolar mucosa (P1A), outer gingival margin (P1B), at entrance of (P2) and within gingival sulcus (P3), before and after chewing of fibrous food in 16 patients portraying ≥2 mm KG at one tooth (group 1), and <2 mm at another homologous tooth (group 2). …”
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1262
BASED ON IMPROVED SA AND GA A NEW METHOD FOR OPTIMIZING TRANSMISSION PARAMETERS OF AUTOMOTIVE HMCVT
Published 2020-01-01“…Specifically,10 first stage parameters of planetary characteristic and gear pair transmission ratio are optimized by using genetic algorithm to optimize transmission efficiency and transmission characteristics; 33 secondary parameters of gear tooth number,modulus,helical angle and tooth width with the aim of lightening are optimized by using improved simulated annealing algorithm. …”
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1263
Research on Calculation Methods of Meshing Intervals of Cycloid Pin Gear Transmission
Published 2023-07-01“…In response to the problems of no suitable constraint conditions in the optimization process of tooth profile modification of cycloidal pin wheel transmission, difficulty in determining the modification amount of cycloidal gear tooth profile in reverse engineering, and the inability to obtain the meshing interval when studying the characteristics of cycloidal pin wheel transmission, research has been conducted on the method for determining the meshing intervals of cycloidal gears. …”
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1264
MAKING SINGLE COMPLETE DENTURES FOR THE MATERIAL WITH TUBER MAXILLA CASE LARGE
Published 2019-07-01“…Background: single complete denture is complete denture where its antagonist there tooth original good in part or else entirely. Besides that on case this there bulge tuber maxilla more big of the normal size of course only will complicate at the stage of preparation of teeth and also take effect on retention, stability, and comfort. …”
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1265
Research of the Laser Cladding and Wear-resistance of Worn Surface of Heavy Load Gear of Mining Machine
Published 2018-01-01“…Taking the worn out tooth surface of walking gear in JOY mining machine which imported from Germany as green re-manufacture study object,the anti-wear and anti-corrosion coating without crack nor pore is successfully produced by two techniques of fatigue layer removal and laser cladding in which parameters are optimized. …”
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1266
Study on Torque Distribution of Torque Split Transmission System of Face Gear
Published 2016-01-01“…Thirdly,the meshing stiffness of gear pair is fit as function of load by tooth contact analysis( TCA) and loaded tooth contact analysis( LTCA). …”
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1267
Periodontal Health and Caries Prevalence Evaluation in Patients Affected by Parkinson's Disease
Published 2012-01-01“…The evaluation of the general oral condition was recorded underlining tooth loss, active periodontal disease, and presence of untreated caries. …”
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1268
DEFORMATION ANALYSIS AND EXPERIMENTAL VERIFICATION OF HAT⁃TYPE FLEXSPLINE UNDER NO LOAD
Published 2024-08-01“…As the core component of the harmonic reducer,the contact stress and deformation distribution during the assembly process of the flexispline affect the reliability life.The finite element assembly simulation process analysis was carried out by using hat⁃type flexispline,and the deformation and stress analysis of the long and short shafts of the flexispline and the front and rear end of the ring gear were extracted respectively.The results show that the deformation at the long axis and the short axis show a linear decrease trend in line with the actual situation,and the deformation of the front and rear end of the ring gear changes periodically.The equivalence stress shows a downward trend in the axial tooth width part of the major and minor axes.The large equivalence stress at the front and rear end of the ring gear is generated at the long and short axes,while the maximum equivalence stress appears in the transition zone at the bottom of the cylinder at 32791 MPa,which is lower than the permissible strength of the material.The deformation measurement of the flexispline assembly process was measured by the high⁃precision coordinate measuring machine,the axial tooth width interval of the long axis and the short axis was 1 mm as the detection point,and the measurement results were compared with the simulation results to verify.The error results are within 5%,which verifies the applicability of the simulation analysis and provides data support for subsequent harmonic reducer designs.…”
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1269
RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSIS
Published 2021-01-01“…The research results show that the maximum deformation of the screw rotor occurs at the end where the male rotor is connected to the motor. The tooth tip of the female rotor and the tooth root of the male rotor produce a large stress concentration,and with the increase of temperature,the service life of the screw rotor Gradually decreases.This method can provide reference for compressor design research and optimization upgrade.…”
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1270
Continuous Wavelet Transform and CNN for Fault Detection in a Helical Gearbox
Published 2025-01-01“…This paper studies the relevance of CWT (continuous wavelet transform) processing of vibration signals for improving the performance of CNN-based models that detect certain types of helical gearbox faults. Gear tooth damages, such as incipient and localized pitting and localized wear on helical pinion tooth flanks, combined with improper lubrication, are the faults under observation. …”
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1271
Hyperplastic Dental Follicle: A Case Report and Literature Review
Published 2014-01-01“…Hyperplastic dental follicle is an odontogenic hamartomatous lesion associated with delayed or tooth eruption failure in young patients. The occurrence of this pericoronal dental lesion may be single or multiple and it seems to be more frequent than literature has reported. …”
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1272
Maturogenesis of an Immature Dens Evaginatus Nonvital Premolar with an Apically Placed Bioceramic Material (EndoSequence Root Repair Material®): An Unexpected Finding
Published 2018-01-01“…Dens evaginatus is a dental developmental anomaly that arises due to the folding of the inner dental epithelium that leads to the formation of an additional cusp or tubercle on the occlusal surface of the affected tooth. This accessory tissue projection may carry with it a narrow and constricted pulp horn extension. …”
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1273
Clinical anxiety among a sample of dental students in South Sinai
Published 2025-02-01“…Participants rated the clinical anxiety precipitating situations in a descending order as follows: extracting wrong tooth (39.5%), giving wrong treatment (37.6%), tearing of the cheek/lips due to catching on a dental burr (35.7%), fracturing a tooth (34.4%), wrong diagnosis (28.1%), inadvertently hurting the patient (22.1%), inability to meet requirements before exams (19.1%), dealing with a fainting patient during dental treatment (18.7%). …”
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1274
Biomechanical Performance of Mandibular Molars with Deep Mesio-Occlusal-Distal Cavities Rehabilitated with Horizontal Posts: A 3D Finite Element Analysis
Published 2023-01-01“…Rehabilitation of deep mesio-occlusal-distal cavities of molars with intact buccal and lingual walls with the aid of a horizontal post of any diameter has a similar stress distribution to an intact tooth. However, the biomechanical performance of a 2 mm horizontal post was exacting of the natural tooth. …”
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1275
Effect of NaF, SnF2, and TiF4 Toothpastes on Bovine Enamel and Dentin Erosion-Abrasion In Vitro
Published 2012-01-01“…Therefore, the experimental toothpastes containing both conventional and metal fluoride seem to be promising in reducing tooth wear.…”
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1276
The Effectiveness of Advanced Platelet-Rich Fibrin in comparison with Leukocyte-Platelet-Rich Fibrin on Outcome after Dentoalveolar Surgery
Published 2021-01-01“…Some physiological changes may occur following tooth extraction, and symptoms during the postextraction period may affect the patient’s quality of life. …”
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1277
Effect of Different Impression Techniques on Marginal Fit of Restoration – An In Vitro Study
Published 2023-07-01“…Method: Impression of prepared tooth on typodont was made using Matrix impression system, two-step putty wash technique, and individual tooth tray technique. …”
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1278
Apexification of an Immature Permanent Incisor with the Use of Calcium Hydroxide: 16-Year Follow-Up of a Case
Published 2015-01-01“…This clinical report aims to report the results of a 16-year follow-up study of an apexification treatment applied to nonvital tooth 22 of a healthy 8-year-old male after a trauma. …”
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1279
Canine Rise Method: A Conservative Approach for Worn Teeth Rehabilitation with Different Adhesive Restorative Materials
Published 2022-01-01“…This method enhanced the esthetic outcomes in a conservative approach with no reduction in tooth material or time-consuming treatments. Conclusions. …”
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1280
Decompression of a Dentigerous Cyst Treatment in Mixed Dentition: A Case Report with 5 Years Follow-Up
Published 2023-01-01“…Intraoral and radiological examination revealed an expansion of the buccal and lingual cortical plates associated with teeth #73, #74, and #75 and a well-limited, unilocular radiolucent image extending from the distal aspect of tooth #31 to the mesial aspect of tooth #36 involving the crowns of the unerupted teeth #33, #34, and #35. …”
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