Results 11 to 20 of about 90,751 (167)

Dynamic Simulation of Cracked Spiral Bevel Gear Pair Considering Assembly Errors

open access: yesMachines, 2022
The tooth root crack fault is a common fault type of the spiral bevel gear pair (SBGP). Affected by the strong bearing capacity, the early crack fault of the SBGP cannot be found in time.
Hongzheng Han   +5 more
doaj   +1 more source

Tooth Root Bending Fatigue Performance of Shot Peening TM210A Steel Spur Gear

open access: yesAdvances in Materials Science and Engineering, 2022
Tooth root bending fatigue performance is the primary consideration in gear design. To investigate the difference between the tooth root fatigue performances of shot peened and base material, TM210A steel gears and double-tooth pulsating bending fatigue ...
H. J. Xu   +3 more
doaj   +1 more source

ImplantFormer: Vision Transformer based Implant Position Regression Using Dental CBCT Data [PDF]

open access: yesNeural Computing and Applications 2024, 2022
Implant prosthesis is the most appropriate treatment for dentition defect or dentition loss, which usually involves a surgical guide design process to decide the implant position. However, such design heavily relies on the subjective experiences of dentists.
arxiv   +1 more source

Application of cryopreservation to tooth germ transplantation for root development and tooth eruption [PDF]

open access: yesScientific Reports, 2021
AbstractWe cryopreserved mouse tooth germs with widely open cervical margins of the enamel organ to overcome difficulties in cryoprotectant permeation and tested their efficacy by transplanting them into recipient mice. The upper right first molar germs of 8-day-old donor mice were extracted and categorized into the following four groups according to ...
Megumi Nakamura   +3 more
openaire   +4 more sources

Fully automatic integration of dental CBCT images and full-arch intraoral impressions with stitching error correction via individual tooth segmentation and identification [PDF]

open access: yes, 2021
We present a fully automated method of integrating intraoral scan (IOS) and dental cone-beam computerized tomography (CBCT) images into one image by complementing each image's weaknesses. Dental CBCT alone may not be able to delineate precise details of the tooth surface due to limited image resolution and various CBCT artifacts, including metal ...
arxiv   +1 more source

Choukroun’s Autologous Platelet Concentrate Used in Immature Necrotic Tooth during Revascularization: A Clinical and Radiological Report of a Case [PDF]

open access: yesJournal of South Asian Association of Pediatric Dentistry, 2023
Aim: To discuss the management of an immature necrotic permanent tooth and the clinical and radiological outcome by utilizing platelet-rich fibrin (PRF).
Umapathy Thimmegowda   +4 more
doaj   +1 more source

Malformations of the tooth root in humans [PDF]

open access: yesFrontiers in Physiology, 2015
The most common root malformations in humans arise from either developmental disorders of the root alone or disorders of radicular development as part of a general tooth dysplasia. The aim of this review is to relate the characteristics of these root malformations to potentially disrupted processes involved in radicular morphogenesis.
openaire   +5 more sources

Human life history evolution explains dissociation between the timing of tooth eruption and peak rates of root growth. [PDF]

open access: yesPLoS ONE, 2013
We explored the relationship between growth in tooth root length and the modern human extended period of childhood. Tooth roots provide support to counter chewing forces and so it is advantageous to grow roots quickly to allow teeth to erupt into ...
M Christopher Dean, Tim J Cole
doaj   +1 more source

Geometric Modeling and Fatigue Strength Simulation of Bevel Gears with Variable Radius Tooth Root

open access: yesJixie chuandong, 2022
Aiming at the problem that most of the teeth root of straight bevel gears adopt fixed radius fillet transition with 0.3 times of modulus, which tends to to cause large bending stress on the tooth root and reduce the service life of bevel gears, a design ...
Haohan Zeng   +5 more
doaj  

Optimization of Tooth Root Profile Using Bezier Curve with G2 Continuity to Reduce Bending Stress of Asymmetric Spur Gear Tooth

open access: yesMATEC Web of Conferences, 2018
This research describes simple and innovative approach to reduce bending stress at tooth root of asymmetric spur gear tooth which is desire for improve high load carrying capacity.
Vaghela Priyakant, Prajapati Jagdish
doaj   +1 more source

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