Abstract：
:Many studies have shown a considerable reduction in enamel bond strength of resin composite restorations when the bonding procedure is carried out immediately after bleaching. These studies claim that a certain waiting period is needed prior to restoration to reach the original bond strength values prior to bleaching. This study determined the effect of anti-oxidant applications on the bond strength values of resin composites to bleached dentin. Ninety human teeth extracted for orthodontic purposes were used in this study. The labial surface of each tooth was ground and flattened until dentin appeared. The polished surfaces were subjected to nine different treatments: 1) bleaching with gel (35% Rembrandt Virtuoso); 2) bleaching with gel + 10% sodium ascorbate (SA); 3) bleaching with gel + 10% butylhydroxyanisole (BHA); 4) bleaching with sol (35% hydrogen peroxide); 5) bleaching with sol + 10% sodium ascorbate; 6) bleaching with sol + 10% BHA; 7) bleaching with gel + immersed in artificial saliva for seven days; 8) bleaching with sol + immersed in artificial saliva for seven days; 9) no treatment. After bonding application, the resin composite in standard dimensions was applied to all specimens. The teeth were stored in distilled water at 37 degrees C for 24 hours and a universal testing machine determined their resistance to shear bond strength. The data was evaluated using ANOVA and Duncan tests. Bond strength in the bleached dentin group significantly decreased compared to the control group. On the other hand, the antioxidant treatment had a reversal effect on the bond strength to dentin. After the bleaching treatment, the 10% sodium ascorbate application was effective in reversing bond strength. In the samples where antioxidant was applied after the bleaching process, bonding strength in dentin tissue was at the same level as those teeth kept in artificial saliva for seven days.
journal_name
Oper Dentjournal_title
Operative dentistryauthors
Kaya AD,Türkün Mkeywords:
subject
Has Abstractpub_date
2003-11-01 00:00:00pages
825-9issue
6eissn
0361-7734issn
1559-2863journal_volume
28pub_type
临床试验,杂志文章,随机对照试验abstract：CLINICAL RELEVANCE:When a resin nanoceramic inlay is cemented using self-adhesive cement, a universal dentin adhesive can be applied to the prepared cavity. The application of the adhesive before self-adhesive cement placement provides similar or better interfacial adaptation than without the adhesive. SUMMARY:Purpose...
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journal_title：Operative dentistry
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更新日期：2001-07-01 00:00:00
abstract：:This study examined the effect of different light activation modes for light-cured resin-based composites on the shear bond strength to dentin of two one-bottle adhesives with differing acidity. In this experimental study, a flat middle dentin surface was prepared on 110 extracted sound molars using a 600-grit polish ...
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更新日期：2002-05-01 00:00:00
abstract：:This study compared the slice method of measuring microleakage to the whole-wall method. Forty-eight Class V direct metal restorations were placed in the buccal and lingual surfaces of 24 human molars. Following thermocycling and storage in 2% methylene blue stain for 12 hours, the teeth were sectioned and the restora...
journal_title：Operative dentistry
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journal_title：Operative dentistry
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更新日期：1998-07-01 00:00:00
abstract：:On occasion we receive manuscripts that we would like to publish, but do not have the page room to include in the print journal. For the full article, please go to www.jopdentonline.org or enter the provided address into your address bar. ...
journal_title：Operative dentistry
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更新日期：2018-09-01 00:00:00
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更新日期：2004-01-01 00:00:00
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journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2005-01-01 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...
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pub_type： 杂志文章,随机对照试验
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更新日期：2014-03-01 00:00:00
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journal_title：Operative dentistry
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更新日期：2002-05-01 00:00:00
abstract：CLINICAL RELEVANCE:Pigments in tooth structures affect the diffusion of H2O2 through enamel and dentin. The bleaching methodology can be impacted. SUMMARY:Objective: The aim of this study was to evaluate the influence of the presence of pigments in tooth structures on the trans-enamel and trans-dentin diffusion of hyd...
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pub_type： 杂志文章
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更新日期：2015-09-01 00:00:00
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更新日期：2006-01-01 00:00:00
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journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
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journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
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pub_type： 杂志文章,随机对照试验
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更新日期：2007-01-01 00:00:00
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doi：
更新日期：2003-07-01 00:00:00
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更新日期：2016-09-01 00:00:00
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更新日期：2014-05-01 00:00:00
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pub_type： 杂志文章,随机对照试验
doi：
更新日期：2005-11-01 00:00:00
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更新日期：1992-03-01 00:00:00
abstract：:Even though accuracy and inter-examiner variation assessments of borderline restorative items have been previously reported, no attempt has been made to replicate the effect of cumulative, sequential diagnostic and treatment planning decisions. This study assesses the cumulative effect of factors indicating restorativ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2000-07-01 00:00:00
