Abstract:
:In this laboratory study, the microtensile bond strengths (μTBS) of resin-modified glass ionomer cement (RM-GIC) to sound and artificial caries-affected bovine root dentin (ACAD) using three different conditioning agents were evaluated after 24 hours and three months. The fractured interface was examined with a scanning electron microscope (SEM). Specimens were created on bovine root dentin that was embedded in epoxy resin. For the ACAD specimens, artificial carious lesions were created. The RM-GIC (Fuji II LC) was applied either directly (no treatment), after application of self conditioner, cavity conditioner, or 17% ethylenediamine tetraacetic acid (EDTA) applied for 60 seconds, on sound dentin and ACAD, then light cured. They were stored in artificial saliva for 24 hours or three months. Following this, the specimens were cut into sticks for the μTBS test, and the failure mode of the debonded specimens was examined by using SEM. Pretest failures were excluded from the statistical analysis of the μTBS values because of their high incidence in some groups. Results showed that the μTBS values were significantly affected by the dentin substrate as well as the conditioning agent. Self conditioner provided the highest and most stable μTBS values, while cavity conditioner showed stable μTBS values on sound dentin. Both self conditioner and cavity conditioner had significantly higher μTBS values than the no treatment groups. EDTA conditioning reduced the μTBS after three months to sound dentin, while it showed 100% pretest failure with ACAD for both storage periods.
journal_name
Oper Dentjournal_title
Operative dentistryauthors
Saad A,Inoue G,Nikaido T,Ikeda M,Burrow MF,Tagami Jdoi
10.2341/16-375-Lsubject
Has Abstractpub_date
2017-11-01 00:00:00pages
626-635issue
6eissn
0361-7734issn
1559-2863journal_volume
42pub_type
杂志文章abstract::This study compared the clinical performance of a nanofilled resin composite for posterior restorations with 2 microhybrid and 1 packable composite after 12 months of clinical service. Forty-two patients with at least 5 Class I or II restorations under occlusion were enrolled in this study. A total of 148 restorations...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
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journal_title:Operative dentistry
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doi:
更新日期:2004-09-01 00:00:00
abstract::Of the many factors under their control, clinicians can manipulate light-exposure duration but must deal with a set intensity of light emitted from the dental curing unit. This research investigates the interdependence of exposure duration and source intensity on resin cure at various depths within a simulated light-c...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/12-039-C
更新日期:2013-01-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1994-05-01 00:00:00
abstract:OBJECTIVES:Published transmission electron microscopy analysis of in vitro resin-dentin bonds shows that, after 44 months, almost 70% of collagen fibrils from the hybrid layer disappear. Matrix metalloproteinases (MMPs) play an important role in that process and are thought to be the main factor responsible for the sol...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/12-425-L
更新日期:2014-03-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1996-09-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章,评审
doi:10.2341/17-208-T
更新日期:2018-07-01 00:00:00
abstract::Most currently marketed fluoride varnishes (FVs) have not been evaluated for their effectiveness in preventing dental caries. The objective of this study was to investigate the anticaries efficacy, measured as fluoride release into artificial saliva (AS); change in surface microhardness of early enamel caries lesions;...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/18-040-L
更新日期:2019-09-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract::Good wettability is one of the desirable physical properties of mercury-free gallium-based alloys (Gallium Alloy GF). However, wettability, while providing good adhesion to the cavity wall, has the adverse effect of causing stickiness to the inside of the capsule during mixing, and also to the metal hand instruments u...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::A literature review was conducted on adhesive Class I and II restorations and nondestructive in vitro tests using the PubMed/Medline database for the 1995-2010 period. The first part of this review has presented and critically appraised selected literature dealing with the quality and in vitro behavior of adhesive Cla...
journal_title:Operative dentistry
pub_type: 杂志文章,评审
doi:10.2341/12-020B-LIT
更新日期:2013-09-01 00:00:00
abstract::The DIAGNOdent, a device used in caries detection, uses a laser to excite fluorescence from pigments in carious tooth structure. In clinical use assessing occlusal surfaces, distance and tooth structure may separate the instrument's tip from the fluorescent source.The aim of this in vitro study was to examine the effe...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/10-179-L
更新日期:2012-03-01 00:00:00
abstract::Provisional restorations of full crown preparations may permit more microleakage of bacteria and their products than the final castings do. However, most investigations of the sealing qualities of cemented castings have reported that they too permit dye leakage. One approach to the problem is to seal the dentin with d...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::Detailed and accurate impressions are made when the oral environment is dry during the impression process. Maintaining a dry field on medically, physically, or emotionally compromised patients can be very challenging. If not achieved, it may compromise dental care and accurate outcomes. This article describes a techni...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/11-290-T
更新日期:2014-01-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2004-03-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1993-09-01 00:00:00
abstract::This study was designed to compare strength, elastic modulus (stiffness), and hardness for five composite resin materials that are used for laboratory-fabricated posterior composite restorations. Ten specimens of each material were processed according to the manufacturer's instructions. Statistical analysis indicated ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1994-11-01 00:00:00
abstract:OBJECTIVES:This study evaluated the bond strength of luting systems for bonding glass fiber posts to root canal dentin. The hypothesis tested was that there are no differences in bond strength of glass fiber posts luted with different cement systems. METHODS:Forty bovine incisors were randomly assigned to five differe...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/11-035-L
更新日期:2012-01-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/06-129
更新日期:2007-09-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/11-360-L
更新日期:2013-01-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/13-257
更新日期:2014-09-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/11-088-L
更新日期:2012-09-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1995-09-01 00:00:00
abstract::The current study evaluated the chromatic influence of high, medium and low value composites on a dentin composite substrate (A2 shade) using spectrophotometric analysis. The specimens were divided into the following four groups: a) control (CG), entirely composed of dentin composite (n = 5); b) high value (GHV), dent...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/09-44-L
更新日期:2010-01-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章,meta分析
doi:10.2341/19-064-L
更新日期:2020-11-01 00:00:00
abstract:PURPOSE:This study evaluated the effect of thermocycling on the microtensile bond strength of four adhesive luting agents to GN-I CAD-CAM ceramic. The hypothesis tested was that thermocycling did not affect bonding effectiveness, irrespective of the luting agents used. MATERIALS AND METHODS:Ceramic specimens of two di...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/06-106
更新日期:2007-07-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1993-07-01 00:00:00
abstract::To evaluate the correlation between microtensile dentin bond strength (microTBS) and silver ion penetration, two total-etch 3-step and one self-etch 2-step system were investigated. OptiBond FL adhesive was applied to flat occlusal dentin on six non-carious human molars, and a resin composite "crown" was formed in 2 m...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/06-157
更新日期:2007-09-01 00:00:00