Abstract：
OBJECTIVE:To investigate the wear mechanisms and evolution of damage in tooth enamel-resin composite bonded interfaces caused by sliding contact, and to develop an understanding of interface degradation from a tribological viewpoint that supports clinical recommendations for improving interface integrity. METHODS:Reciprocating wear tests were performed on bonded interface samples involving commercial resin composite (Tetric N Ceram Bulk Fill), resin cement (Rely X U200) and tooth enamel using the ball-on-flat configuration. The bonded samples were subjected up to 5 × 104 cycles of sliding contact, and the wear depth and wear track morphology were characterized after increments using white light interferometry and scanning electron microscopy, respectively. Optical microscopy was also used to evaluate cracks and their propagation in the samples. RESULTS:In the early stages of sliding contact, wear evolved most rapidly at the interface, followed by the enamel and the resin composite. Gradually, the difference between the wear depth at the interface and other areas decreased. Furthermore, cracks and brittle fracture appeared in the enamel during the early stages of wear, adjacent to the interface. With continuing cyclic loading, enamel wear manifested primarily as ploughs, with discontinuous pits and peeled material. Cracking decreased to only a few cracks extending to the inner enamel and parallel to the interface. CONCLUSIONS:Cracking and damage occurred in the enamel during the early stages of sliding contact and accelerated by poor margin finishing. Cracks caused by wear under sliding contact could be one of the reasons for secondary caries and tooth discoloration.
journal_name
J Dentjournal_title
Journal of dentistryauthors
Xu Z,Xiong Y,Yu P,Zhao P,Arola D,Gao Sdoi
10.1016/j.jdent.2019.02.004subject
Has Abstractpub_date
2019-04-01 00:00:00pages
40-49eissn
0300-5712issn
1879-176Xpii
S0300-5712(18)30348-8journal_volume
83pub_type
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doi：10.1016/j.jdent.2016.09.005
更新日期：2016-11-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章,meta分析
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journal_title：Journal of dentistry
pub_type： 临床试验,杂志文章
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更新日期：2018-02-01 00:00:00
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journal_title：Journal of dentistry
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更新日期：2016-04-01 00:00:00
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doi：10.1016/j.jdent.2017.05.021
更新日期：2017-08-01 00:00:00
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doi：10.1016/j.jdent.2003.08.004
更新日期：2004-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.jdent.2009.06.014
更新日期：2009-11-01 00:00:00
abstract：OBJECTIVES:Tooth shade is crucial to patient satisfaction in aesthetic dentistry. Two-dimensional (2D) clinical photographs have been widely used to record patients' tooth shade for creation of beautiful smile. However, in the digital workflow, 3D virtual teeth models in open file format contain only mesh information w...
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pub_type： 杂志文章
doi：10.1016/j.jdent.2018.09.009
更新日期：2018-12-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2014.06.011
更新日期：2014-11-01 00:00:00
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pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2013.08.012
更新日期：2013-11-01 00:00:00
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journal_title：Journal of dentistry
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更新日期：2000-08-01 00:00:00
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doi：10.1016/j.jdent.2014.01.006
更新日期：2014-04-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2009.08.011
更新日期：2010-08-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2013.05.013
更新日期：2013-08-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2009.03.012
更新日期：2009-07-01 00:00:00
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更新日期：1996-01-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2020.103542
更新日期：2020-12-01 00:00:00
abstract：OBJECTIVES:The tooth-resin bond is the weak link of restoration, with secondary caries as a main reason for failure. Calcium phosphate-containing resins are promising for remineralization; however, calcium (Ca) and phosphate (P) ion releases last only a couple of months. The objectives of this study were to develop the...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2015.06.009
更新日期：2015-12-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(98)00027-x
更新日期：1999-01-01 00:00:00
abstract：OBJECTIVES:Chlorhexidine (CHX) is a commonly used antiseptic mouthwash, used by dental practitioners and the public, due to its antimicrobial effects. The aim of this article was to provide a narrative review of current antimicrobial uses of CHX relevant to dentistry in the context of oral diseases, highlighting need f...
journal_title：Journal of dentistry
pub_type： 杂志文章,评审
doi：10.1016/j.jdent.2020.103497
更新日期：2020-12-01 00:00:00
abstract：OBJECTIVES:Secondary caries at the tooth-restoration margins is a primary reason for restoration failure. Cracks at the margins lead to leakage which can trap bacteria, producing acids to cause caries. To date, there has been no report on developing an adhesive resin that has self-healing, antibacterial and remineraliz...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2018.05.009
更新日期：2018-08-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2007.02.005
更新日期：2007-06-01 00:00:00
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journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2005.02.001
更新日期：2005-10-01 00:00:00
abstract：OBJECTIVE:To compare the permeability of the occlusal and the cervical dentinal regions within the same tooth, which represent the bottom of Class I and V cavities, respectively, with two different compositions of perfusion fluid, in vitro. METHODS:An occlusal and a buccal disc were cut from each extracted third molar...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/s0300-5712(02)00005-2
更新日期：2002-02-01 00:00:00
abstract：OBJECTIVES:To investigate repairs of direct restorations by a group of Dutch general dental practitioners (GDPs) and its consequences on longevity of restorations. METHODS:Data set was based on dental records of patients attending 11 general dental practices (24 Dentists) in the Netherlands. Patients that received Cla...
journal_title：Journal of dentistry
pub_type： 杂志文章
doi：10.1016/j.jdent.2017.06.002
更新日期：2017-09-01 00:00:00
