Results 51 to 60 of about 1,721,695 (243)

The use of Bioceramics as root-end filling materials in periradicular surgery: a literature review [PDF]

open access: yes, 2018
Introduction: Periradicular surgery involves the placement of a root-end filling following root-end resection, to provide an apical seal to the root canal system. Historically several materials have been used in order to achieve this seal.
Abusrewil, Sumaya M.   +2 more
core   +1 more source

Moving an incisor across the midline: A treatment alternative in an adolescent patient [PDF]

open access: yes, 2011
A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. Extraction of both teeth became necessary.
Bosio, Jose A   +2 more
core   +1 more source

Outcomes of Primary Endodontic Therapy in Medicaid Enrollees [PDF]

open access: yes, 2020
The objective of this study was to determine factors affecting survival of teeth after nonsurgical root canal therapy (NSRCT) among enrollees of Wisconsin Medicaid during the years 2001-2009.
Gainey, Timothy
core   +1 more source

Transient Displacement Response to Pulse Excitations on Periodontal Tissues [PDF]

open access: yes, 1988
In the field of dental study it is most fundamental and necessary to estimate the condition of periodontium. In order to examine a mechanical characteristics of periodontium, the theoretical displacement response to periodontal mechanical model (three ...
Isayama, Yoshiharu   +2 more
core   +1 more source

Risk prediction model of impacted supernumerary tooth-associated root resorption in children based on cone-beam computed tomography analysis: a case control study

open access: yesBMC Oral Health
Background External surface resorption is pressure-induced resorption and occurs on the external surface of the root, pressure exerted by impacted teeth, is common causes of external surface resorption.
Yakang Li   +6 more
doaj   +1 more source

Quality of Root Canal Obturation Performed by Senior Undergraduate Dental Students [PDF]

open access: yes, 2015
The aim of the present study was to assess the quality of canal obturation performed by undergraduate denal students at Saveetha Dental College and Hospitals, Chennai.
Nagaraja, S. (Sundahnath)
core  

Barremian and Aptian (Cretaceous) sharks and rays from Speeton, Yorkshire, north-east England [PDF]

open access: yes, 2004
Bulk sampling of a number of horizons within the upper part of the Speeton Clay Type section has produced teeth and other remains of sharks and rays from several poorly studied horizons.
Applegate   +34 more
core   +1 more source

非均荷载下齿向应力与轮齿变形的数值模拟

open access: yesJixie chuandong, 2010
Based on the considerable effect to numerical simulation of exact modeling,APDL-Matlab parametric modeling programming is used.Exactly gear teeth model is built by tooth profile curve derivation.A simulation method that contact load is linear before ...
符双学, 周长江, 程秀全
doaj  

Sharp Curvature of Premolar Resulting in External Apical Root Resorption of the Neighbouring Molar

open access: yesCase Reports in Dentistry, 2011
This case report describes an external apical root resorption resulted from the unusual root morphology of the neighbouring tooth. A 28-year-old female was referred to the department of endodontics with a complaint of intense pain in her maxillary second
Özgür İlke Atasoy Ulusoy
doaj   +1 more source

Finite element modelling and load share analysis for involute worm gears with localised tooth contact [PDF]

open access: yes, 2001
A new approach has been developed by the authors to estimate the load share of worm gear drives, and to calculate the instantaneous tooth meshing stiffness and loaded transmission errors. In the approach, the finite element (FE) modelling is based on the
Gentle, CR, Su, D, Yang, F
core  

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