Abstract:
:We investigated the effects of CO2 laser irradiation combined with acidulated phosphate fluoride (APF) application on the demineralization of enamel. APF gel was applied to the buccal enamel of human premolars and CO2 laser was applied. After the specimens were immersed in demineralization solution for 72 h, they were subjected to depth-dependent micro-CT and nanoindentation analyses. Micro-X-ray diffraction and X-ray photoelectron spectroscopy were performed to analyze the surfaces. Some surface regions of the enamel in specimens that were laser-irradiated with low output and APF-treated showed significantly higher values of MD and hardness than specimens treated with APF alone. A higher fluoride concentration in the enamel surface was observed in specimens treated with CO2 laser irradiation plus APF gel application. In conclusion, CO2 laser irradiation with low output is preferable to improve acid resistance.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Nakagaki S,Iijima M,Endo K,Saito T,Mizoguchi Idoi
10.4012/dmj.2014-225subject
Has Abstractpub_date
2015-01-01 00:00:00pages
287-93issue
3eissn
0287-4547issn
1881-1361journal_volume
34pub_type
杂志文章abstract::The torsional fracture strength at the interface between a base plate and veneering material was evaluated for three kinds of veneered restoration: porcelain fused to zirconia (PFZ), porcelain fused to metal (PFM), and composite resin veneered metal (CRVM). The metal and zirconia base plate (30×4×0.4 mm) were prepared...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2016-432
更新日期:2018-07-29 00:00:00
abstract::The purpose of this study was to investigate the effect of laser irradiation on the enamel surface spectroscopically. Polished bovine enamel surface was irradiated with an Er:YAG laser apparatus and chemically analyzed using X-ray photoelectron spectroscopy (XPS). XPS detected core electron peaks such as carbon (C 1s)...
journal_title:Dental materials journal
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doi:10.4012/dmj.25.214
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journal_title:Dental materials journal
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.25.145
更新日期:2006-03-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2017-137
更新日期:2017-09-26 00:00:00
abstract::This study evaluated the influence of heat treatment (HT) of the silane on the microtensile bond strength of resin cement to a feldspathic ceramic. Ceramic (VITA VM7) and composite blocks (N=32) were divided into four groups (n=6 for bond test, n=2 for SEM) at random and subject to following sequence of conditioning: ...
journal_title:Dental materials journal
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2011-01-01 00:00:00
abstract::The aim was to characterize by atomic force microscopy (AFM) the nanostructure of human dentin surfaces affected by dental fluorosis (DF) before and after phosphoric acid etching. This study included 240 human dentin samples classified according to the severity of DF, which were divided into four groups using the Thyl...
journal_title:Dental materials journal
pub_type: 杂志文章
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.22.532
更新日期:2003-12-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
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更新日期:2011-01-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2013-126
更新日期:2014-01-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.14.109
更新日期:1995-12-01 00:00:00
abstract::Chemical mechanical polishing (CMP) of cpTi (Ti) was carried out using two types of slurries, acidic and basic colloidal silica containing H2O2 up to 3 wt%, to obtain flat and mirror-polished surfaces without any contaminated and reacted layers. Polishing behavior and surface properties were investigated using AFM, EP...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.28.68
更新日期:2009-01-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.27.415
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journal_title:Dental materials journal
pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2010-170
更新日期:2011-01-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2012-317
更新日期:2013-01-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2010-203
更新日期:2011-01-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
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更新日期:2013-01-01 00:00:00
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journal_title:Dental materials journal
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更新日期:2002-03-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.28.433
更新日期:2009-07-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.12.245
更新日期:1993-12-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.22.87
更新日期:2003-03-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2019-250
更新日期:2020-09-29 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.12.1
更新日期:1993-06-01 00:00:00
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journal_title:Dental materials journal
pub_type: 杂志文章,随机对照试验
doi:10.4012/dmj.2009-074
更新日期:2010-08-01 00:00:00
abstract::The purpose of this study was to evaluate the effects of ultrasonic and manual placement techniques on the push-out bond strength of Biodentine and MTA with and without calcium chloride. One hundred and twenty mid-root slices from forty freshly extracted single-rooted human mandibular premolar teeth were instrumented ...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2016-094
更新日期:2016-10-01 00:00:00
abstract::This study investigated the contrast ratio and grain size depending on sintering parameters of twelve different zirconia materials and compared with glass-ceramic (N=156, n=12 per group). Contrast ratio of all ceramics was measured using a spectrophotometer according to ISO 2471: 2008. Grain sizes of zirconia were det...
journal_title:Dental materials journal
pub_type: 杂志文章
doi:10.4012/dmj.2014-056
更新日期:2014-01-01 00:00:00