Abstract:
:Under clinical conditions, the time needed for the proper light curing of luting composites or the multi-incremental buildup of a large restoration with halogen curing units is quite extensive. Due to the development of high power curing devices, such as argon lasers and plasma arc lights and, in order to decrease curing time, halogen and LED devices have developed a high intensity polymerization mode. This study compared the degree of conversion using Fourier Transform Infrared Spectroscopy (FT-IR) of two composite materials: Tetric Ceram and Tetric EvoCeram polymerized with three polymerization modes (high, low and soft mode) of a Bluephase 16i LED curing unit and blue diode laser intensity of 50 mW on the output of the laser beam and 35 mW/cm2 on the resin composite sample. Descriptive statistic, t-test, ANOVA, Pearson Correlation and Tukey Post hoc tests were used for statistical analyses. The results show a higher degree of conversion for the polymerization of composite samples with all photopolymerization modes of the LED curing unit. However, there is no significant difference in the degree of conversion between the LED unit and 50-second polymerization with the blue diode laser. Tetric EvoCeram shows a lower degree of conversion regardless of the polymerization mode (or light source) used.
journal_name
Oper Dentjournal_title
Operative dentistryauthors
Knezevic A,Ristic M,Demoli N,Tarle Z,Music S,Negovetic Mandic Vdoi
10.2341/06-79subject
Has Abstractpub_date
2007-05-01 00:00:00pages
279-84issue
3eissn
0361-7734issn
1559-2863journal_volume
32pub_type
杂志文章abstract::Traumatic dental injuries usually occur among children and adolescents, with maxillary central incisors as the most often affected teeth. Complicated crown-root fractures are particularly challenging for esthetic and functional rehabilitation and often require a multidisciplinary approach. A 21-year-old male patient c...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/15-080-T
更新日期:2016-11-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
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abstract:PURPOSE:To investigate clinical performance of a low-shrinkage silorane-based composite resin when used for repairing conventional dimethacrylate-based composite restorations. BACKGROUND:Despite the continued development of resin-based materials, polymerization shrinkage and shrinkage stress still require improvement....
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
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abstract::In vitro studies to assess bond strength between resins and ceramics have used surfaces that have been ground flat to ensure standardization; however, in patients, ceramic surfaces are irregular. The effect of a polished and unpolished ceramic on bond strength needs to be investigated. Sixty ceramic specimens (20×5×2 ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/11-009-L
更新日期:2011-09-01 00:00:00
abstract::One hundred non-carious, non-undercut cervical lesions were restored with Silux Plus or Estio LC and bonded with Fuji Bond LC. The restorations were evaluated yearly for retention and marginal discoloration. After five years, the overall retention rate was 96%. Of the 41 restorations examined at five years, five had c...
journal_title:Operative dentistry
pub_type: 临床试验,杂志文章
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更新日期:2002-09-01 00:00:00
abstract::The aim of this study was to compare five all-in-one bonding agents with respect to microleakage, microtensile bond strength (μTBS), degree of conversion (DC) and the impact of cavity configuration. The materials tested were Adper Easy Bond, Clearfil S3 Bond, iBond, Optibond All-in-One, Xeno IV, and Adper Single Bond ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/14-185-LR1
更新日期:2015-09-01 00:00:00
abstract::This study compares volumetric changes and rates of shrinkage during different stages of polymerization of dental resin composites and compomers exposed to the same total energy by using two different combinations of power density and exposure duration. A hybrid composite and its equivalent flowable and a compomer and...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2003-09-01 00:00:00
abstract::The purpose of this study was to determine if air thinning three dentin adhesives would affect bond strength to dentin. Ninety human molars were mounted in acrylic and the occlusal surfaces ground to expose a flat dentin surface. Thirty teeth were randomly assigned to one of the following dentin bonding agent/composit...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1995-07-01 00:00:00
abstract:OBJECTIVES:To evaluate the efficacy of a new light-cured anesthetic gel for pain control in adults undergoing rubber dam isolation for the restorative treatment of noncarious cervical lesions (NCCLs). METHODS AND MATERIALS:This study was a randomized, split-mouth, triple-blind, controlled trial. The sample comprised 5...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/18-130-C
更新日期:2020-03-01 00:00:00
abstract::This study determined the influence of light curing protocols and matrix type on the margin quality and marginal seal of Class II resin-based composite restorations. In extracted human molars, box-shaped MOD cavities with 1 mm wide interproximal bevels were prepared with cervical margins located at least 1 mm coronal ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/04-194
更新日期:2006-01-01 00:00:00
abstract::This article outlines an atraumatic isolation approach and a conservative instrumentation sequence, followed by use of a highly viscous, rapid-setting, capsulated glass ionomer cement to manage a difficult deep proximal-cervical Class V lesion. ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2004-05-01 00:00:00
abstract::This study evaluated the microleakage of resin-modified glass ionomer, flowable compomer and flowable resin composite restorations on a Class V cavity of simulated advanced root caries under a flexural load cycling condition. Thirty-six non-carious human maxillary premolars were mounted in cylindrical acrylic resin mo...
journal_title:Operative dentistry
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2005-03-01 00:00:00
abstract:CLINICAL RELEVANCE:The degree of conversion of contemporary universal adhesives positively correlates with the bond strength to dentin. The correlation is more marked after thermocycling, suggesting that a high degree of conversion is required for long-term dentin bonding durability. SUMMARY:Purpose: The objectives of...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/19-165-L
更新日期:2020-09-01 00:00:00
abstract::This study investigated the influence of light energy density (intensity x time) on the effectiveness of composite cure in view of the curing profiles of new light-polymerization units. This investigation used a digital microhardness tester to evaluate the hardness of the top/bottom surfaces and hardness ratio of 2 mm...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
abstract::This in vitro study investigated the possible dehydration of dentin caused by bleaching agents. Furthermore, it tested whether protective dentin varnishes can maintain the physiological moisture of dentin during bleaching treatment. Fifty-five standardized dentin cylinders were prepared from freshly extracted bovine i...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/05-89
更新日期:2006-09-01 00:00:00
abstract::Most manufacturers of dental adhesives have both a total-etch adhesive and a simplified self-etching adhesive available on the market. This study measured the enamel microtensile bond strengths of five pairs of enamel adhesives as a function of enamel roughness. The proximal surfaces of 25 extracted mandibular molars ...
journal_title:Operative dentistry
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2005-07-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/07-133
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to compare the in vivo diagnostic ability of a laser fluorescence system (DIAGNOdent, KaVo, Biberac, Germany) with that of visual inspection in the early detection of occlusal caries in newly erupted noncavitated first permanent molars among caries-active children. MATERIALS AND MET...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/10-309-C
更新日期:2011-07-01 00:00:00
abstract::This study investigated the effect of a crown-lengthening ferrule on the fracture resistance of endodontically-treated teeth restored with two dowel-core systems. Thirty-two extracted mandibular first premolars were sectioned perpendicular to the long axis at a point 1.0 mm occlusal to the buccal cementoenamel junctio...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/06-169
更新日期:2007-11-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/16-002-L
更新日期:2017-03-01 00:00:00
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journal_title:Operative dentistry
pub_type: 杂志文章
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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:
更新日期:2003-03-01 00:00:00
abstract::This in vitro study evaluated microleakage in Class II cavities restored with dental composite and varying light-curing units and the temperature of the composite when subjected to a thermocycling test. Ninety cavities were prepared on the proximal surfaces of bovine teeth and randomly divided according to the light-c...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/10-226-LR1
更新日期:2011-01-01 00:00:00
abstract::In some patients with labial white stains involving the enamel and dentin, bleaching associated with a restorative procedure using composites may be an appropriate treatment alternative. Although bleaching makes the teeth and the stain whiter, the staining is less evident and easier to restore. Restorative procedures ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/12-284-T
更新日期:2013-07-01 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
pub_type: 杂志文章
doi:10.2341/1559-2863-43.5.561
更新日期:2018-09-01 00:00:00
abstract::This study investigated the effect of conventional and acidified casein phosphopeptide-amorphous calcium phosphate-containing crèmes (CPP-ACP and ACPP-ACP) on dentin permeability (DP) before and after acid challenge, using a fluid-flow measuring device and scanning electron microscopic (SEM) examination. Fifty dentin ...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:10.2341/17-382-L
更新日期:2019-09-01 00:00:00
abstract::Standardized class 4 cavities were prepared in bovine incisors and restored with a microfilled composite resin. The composite restorations were retained either by acid etching technique (AET) alone or by acid etching technique in combination with a self-threading retentive pin. Pins covered with a bonding/opaquer coat...
journal_title:Operative dentistry
pub_type: 杂志文章
doi:
更新日期:1994-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the influence of chlorhexidine with different application methods on the microtensile bond strength (microTBS) to dentin in Class I cavities. METHODS:Flat dentinal surfaces with Class I cavities (4 mm long, 4 mm wide, 2 mm deep) in 50 molars were bonded with Adper Single Bond 2 etch-and-rinse adh...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/09-360-L
更新日期:2010-11-01 00:00:00
abstract:OBJECTIVES:Whitening efficacy has been related to hydrogen peroxide (HP) diffusion into tooth structure. However, little information is available relating rheological properties to whitening efficacy. The purpose was to evaluate the whitening efficacy and HP penetration level of a 10% HP gel at three different viscosit...
journal_title:Operative dentistry
pub_type: 杂志文章,随机对照试验
doi:10.2341/17-099-L
更新日期:2018-05-01 00:00:00
abstract::While a one-year report had been previously published, this study was undertaken to evaluate the clinical performance and appearance of a resin-modified glass ionomer and a resin composite over two years. Thirty-seven pairs of restorations of FujI II LC and Z 250/Single Bond were placed in caries-free cervical erosion...
journal_title:Operative dentistry
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2003-09-01 00:00:00