Results 41 to 50 of about 1,454,360 (340)
A cone-beam computed tomography study of the root and canal morphology of maxillary premolars
口腔疾病防治, 2020 Objective To study root morphology, the incidence of three root canals and the root canal anatomy of maxillary premolars. Methods The cone-beam computed tomography (CBCT) data of 779 maxillary first premolars and 728 maxillary second premolars were ...
KONG Qianying +3 more
doaj +1 more source
Shaping the root canal system [PDF]
British Dental Journal, 2014 The speciality of endodontics encompasses numerous elements, but the use of a variety of instruments to shape root canal systems probably challenges the clinical time of practitioners more than any other. The aim of this article is to review some of the historic and contemporary approaches to this challenging practical objective.
M Waplington, A S McRobert
openaire +2 more sources
Root canal preparation using micro-computed tomography analysis: a literature review.
Brazilian Oral Research, 2018 This literature review has critically analyzed the published research related to the biomechanical preparation of root canals with three-dimensional analysis using micro-computed tomography (micro-CT).
M. Sousa-Neto +7 more
semanticscholar +1 more source
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
口腔疾病防治, 2018 Objective To investigate the effects of different root canal filling stop on quality of root canal filling and apical sealing in root canals obturated with GuttaFlow.
YANG Weidong
doaj +1 more source
Biocompatibility of Root Canal Sealers: A Systematic Review of In Vitro and In Vivo Studies
Materials, 2019 (1) Aim: To perform a systematic review of the literature on the biocompatibility of root canal sealers that encompasses the various types of sealers that are commercially available as well as both in vitro and in vivo evidence.
Diogo Fonseca +7 more
semanticscholar +1 more source
FEBS Letters, EarlyView.Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu +17 more
wiley +1 more source
Dental Research JournalBackground: Knowledge about the anatomic variations of the root canal system and their prevalence is necessary for clinicians to ideally clean the root canal system.
Alireza Farhad +3 more
doaj +3 more sources
口腔疾病防治, 2019 Objective To compare the effects of four nickel-titanium root canal preparation instruments on removing fillings in severely curved root canals.Methods Forty single-bend resin root canals were selected to simulate curved root canals. A ProTaper Universal
SUN Fei, LIANG Jingping
doaj +1 more source
Biological and physico-chemical properties of new root canal sealers
Journal of Clinical and Experimental Dentistry, 2018 Background The purpose of the present study was to compare the biological and the physico-chemical properties of bioceramic-based root canal sealers, calcium hydroxide-based, MTA-based and epoxy resin-based root canal sealers.
Marco Colombo +6 more
semanticscholar +1 more source