Results 71 to 80 of about 1,196,714 (201)

Biomechanical Analysis Of Maxillary Posterior Tooth Intrusion By Clear Aligners

open access: yesInternational Dental Journal
Aim or purpose: To analyze the stress concentration region and tooth displacement in maxillary posterior tooth intrusion by clear aligners. Materials and methods: A finite element model of maxillary dentition, periodontal ligaments, and clear aligners ...
Houwen Pan, Lingyong Jiang
doaj   +1 more source

Accurate Finite Element Modeling Method of Herringbone Gear based on Multipoint Constraint Method

open access: yesJixie chuandong, 2022
A sufficiently refined mesh at the stress position is the basis for finite element analysis of gears to obtain accurate tooth surface contact stress and tooth root bending stress.
Guanwang Geng, Wei Liu, Qingsong Zhang
doaj  

Antagonistic interaction between Ezh2 and Arid1a coordinates root patterning and development via Cdkn2a in mouse molars

open access: yeseLife, 2019
Patterning is a critical step during organogenesis and is closely associated with the physiological function of organs. Tooth root shapes are finely tuned to provide precise occlusal support to facilitate the function of each tooth type.
Junjun Jing   +9 more
doaj   +1 more source

Root canal treatment of a root-fractured incisor tooth with internal resorption: A case report

open access: yes, 1996
A case is described in which root canal treatment with calcium hydroxide was used successfully to repair a fracture site with internal resorption of the ...
Turkun, M, Caliskan, MK
core   +1 more source

Essential Role of Osterix for Tooth Root but not Crown Dentin Formation [PDF]

open access: yes, 2015
Tooth is made of crown and root. It is widely believed that dentin formation in crown and root uses the same regulatory mechanism. However, identification of nuclear factor 1 C (NFIC)'s unique function in determining root but not crown dentin formation ...
Jiang, Yong   +11 more
core   +1 more source

Micro-CT study of the influence of orthodontic force on the root resorption and orthodontic tooth movement

open access: yes口腔疾病防治, 2016
Objective To analyze the tooth movement distance and root resorption in rats under different orthodontic forces, to explore the effect of orthodontic force on the root resorption during orthodontic tooth movement.Methods 64 male Sprague Dawley (SD) rats ...
WU Chang-jing
doaj   +1 more source

Displacement of the landmarks and root length changes for each tooth.

open access: yes, 2018
Displacement of the landmarks and root length changes for each tooth.
Gui Chen (779177)   +2 more
core   +1 more source

Influencing factors of orthodontic tooth movement and root resorption, and evaluation of its radiographic diagnostic means [PDF]

open access: yes, 2018
Aims: To investigate whether patient- or tooth-related factors like jaw location or intra- and interarch obstacles influence the amount of orthodontic tooth movement and orthodontically induced root resorption, and to evaluate if the concept of slow and ...
Dudic, Alexander
core   +1 more source

Endodontic Management of a Mandibular Second Premolar With Two Roots and Four Canals: A Case Report

open access: yesNigerian Dental Journal
A detailed understanding of root canal morphology is essential for successful root canal, mandibular second premolar usually consists of a single root with a single root canal but two roots with multiple canals has been reported.
Oseremen Akhigbemen   +2 more
doaj   +1 more source

Distalization of mandibular molar with iatrogenic root fracture in Class III malocclusion: a case report

open access: yesBMC Oral Health
Background Placement of interradicular orthodontic miniscrews poses a potential risk of root damage, including superficial root contact and root fracture.
Hyojin Kim   +3 more
doaj   +1 more source

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