Abstract：
:The effect of microabrasion on human enamel has been well documented; however, no information is available on its effect on dentin or restorative materials. The purpose of this study was to evaluate the effect of the microabrasion technique on the surface roughness of restorative materials and enamel and dentin surfaces. Flat disks of amalgam, composite resin, porcelain, and glass ionomer were evaluated. Labial enamel of three maxillary incisors and three molars that were flattened buccally to expose dentin were also tested. The Prema microabrasion compound was applied to each sample with a 10:1 gear-reduction, slow-speed handpiece for 5 seconds, then rinsed for 10 seconds. Roughness was determined with a profilometer. This procedure was repeated 20 times for each sample. A polyvinylsiloxane impression of the surface was taken after 0, 5, 10, 15, and 20 applications and examined under a scanning electron microscope. Enamel surface roughness did not improve as previously reported, suggesting that changes in optical characteristics may not be as important as removal of enamel in obtaining esthetic results. Dentin and glass ionomer exhibited an increase in roughness, such that their presence contraindicates the technique. Amalgam was essentially polished. Porcelain was most resistant to the effects of microabrasion. Judicious use of the technique, especially when restorative materials are present, is advised.
journal_name
Oper Dentjournal_title
Operative dentistryauthors
Chan DC,Lemke KC,Howell ML,Barghi Nsubject
Has Abstractpub_date
1996-03-01 00:00:00pages
63-8issue
2eissn
0361-7734issn
1559-2863journal_volume
21pub_type
杂志文章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
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：:The molar proximal half-crown cast gold restoration may be an ideal choice for the conservative treatment of teeth with only one compromised proximal aspect. ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/10-T1
更新日期：2010-03-01 00:00:00
abstract：:This study tested the null hypothesis that there no difference between two-step and one-step self-etch adhesives in their compatibility with these composites. The microtensile bond strengths (microTBS) of two two-step systems (Clearfil SE Bond, Kuraray and Tyrian SPE/One-Step Plus, BISCO) were compared with two one-st...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2003-11-01 00:00:00
abstract：OBJECTIVE::The study aimed to evaluate teaching trends and use of materials in direct posterior restorations during a 13-year period in an Israeli dental school. METHODS::Data registered in computerized files, relating to posterior restorations performed in the student clinic during the past 13 years (2004-2016), were...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/17-361-C
更新日期：2018-11-01 00:00:00
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...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/19-141-L
更新日期：2020-11-01 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：OBJECTIVE:To study the interfacial ultra-morphology formed by "all-in-one" self-etch adhesives. METHODS:Forty-nine extracted molars were assigned to one of five all-in-one adhesives: Adper Prompt L-Pop (AP, 3M ESPE); Clearfil S3 Bond (S3, Kuraray); G-Bond (GB, GC America); iBond (iB, Heraeus Kulzer) and Xeno IV (XE, D...
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：:The antibacterial properties of self-etching adhesive systems constitute an important issue in operative dentistry, since viable bacteria can still be present after cavity preparation. The current study evaluated the antibacterial activity of five one-step self-etching adhesives (SEAs) and four self-etching primers (S...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/09-297-L
更新日期：2010-07-01 00:00:00
abstract：:Light Emitting Diode (LED) curing units are attractive to clinicians, because most are cordless and should create less heat within tooth structure. However, questions about polymerization efficacy have surrounded this technology. This research evaluated the adequacy of the depth of cure of pit & fissure sealants provi...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2005-11-01 00:00:00
abstract：:This study evaluated the effect of polishing after one-day storage in water on the gap formation around a Class V restoration completely bordered by enamel (coronal cavity) using one resin-modified glass ionomer, one compomer and one conventional glass ionomer as a control. The study also examined gap formation of the...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:This in vitro study investigated the effects of a thin layer of flowable composite or compomer on microleakage occurring in Class II packable and nanofilled composite restorations that extend apical to the cemento-enamel junction (CEJ). The current study also investigated any differences in microleakage that occur bet...
journal_title：Operative dentistry
pub_type： 杂志文章,随机对照试验
doi：10.2341/08-91
更新日期：2009-05-01 00:00:00
abstract：:The reasons for placement and replacement and the longevity of amalgam restorations were recorded by 62 Italian private practitioners. The survey compiled 1935 amalgam restorations inserted due to primary caries (59%) and failed restorations (41%). The clinical diagnosis of secondary caries constituted 59% of failures...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1992-03-01 00:00:00
abstract：:Four resin based materials (Compolute Aplicap, ESPE; Variolink Ultra, Vivadent; C&B Metabond, Parkell and Panavia 21, Kuraray), two carboxylate cements (Poly-F Plus, Dentsply DeTrey and Durelon Maxicap, ESPE), two glass-ionomer cements (Fuji I, GC and Ketac-Cem Aplicap, ESPE), one resin-modified glass ionomer cement (...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2000-11-01 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：:This study evaluated the effects of acid etching of the enamel and the combination of different light sources (halogen light, light-emitting diodes [LEDs], and LED/Laser) and the bleaching product on color change, penetration of hydrogen peroxide (H2O2), and cytotoxicity over time. The color change (ΔE) and the amount...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/14-364-L
更新日期：2016-01-01 00:00:00
abstract：:Coronal fractures of posterior teeth are not rare in clinical practice. Most of the time they constitute a restorational problem for the clinician, since they usually end below the free gingival crest. Two hundred coronal fractures of posterior teeth were examined in this study, with respect to several factors. Some o...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:The replacement of a restoration is one of the most common procedures in dentistry. However, the criteria for such intervention, excluding catastrophic failure and persistent discomfort and pain, continue to be the subject of considerable debate. The decision-making process remains subjective on the part of the treati...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/15-058-O
更新日期：2016-09-01 00:00:00
abstract：:The purpose of this study was to evaluate the 1-year results of the dentin bond (DBS)/viscous resin liner combinations Amalgambond Plus, Tenure/Panavia, Syntac/Dual Cem, and All-Bond 2/Liner F in reducing microleakage in class 5 cavity preparations restored with an admixed or a spherical amalgam alloy and to compare t...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:This study evaluated the biocompatibility of contemporary bulk-fill resin-based composites (RBCs) including PRG (pre-reacted glass ionomer) materials based on the International Organization for Standardization 10993. In addition, the effect of composite thickness on cytotoxicity was also assessed. Two standard composi...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/15-059-L
更新日期：2015-11-01 00:00:00
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....
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：2003-11-01 00:00:00
abstract：:Various core materials with different shades affect the final color of high-translucency monolithic zirconia restorations. The blue core shows the greatest color difference in final zirconia restorations followed by metal, A3 dentin-shade resin core, and white core. ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/19-238-L
更新日期：2020-12-21 00:00:00
abstract：:This study compared the clinical performance of a polyacid-modified resin composite and a resin-modified glass-ionomer restorative material over two years. Thirty-four pairs of restorations of Compoglass and Fuji II LC were placed in caries-free cervical erosion/abfraction lesions without tooth preparation. Restoratio...
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：2001-01-01 00:00:00
abstract：:V-shaped cervical cavities prepared in monkey teeth were restored with several dentin bonding systems, and the in vivo resin-dentin interfacial structures were observed under the scanning electron microscope using an argon-ion etching technique. The hybrid layer could be clearly observed; its depth was dependent on th...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1995-09-01 00:00:00
abstract：:One hundred cervical caries-free, nonundercut lesions were restored in 13 patients of mean age 60.5 years, using Silux Plus or Estio LC resin composite bonded with Fuji Bond LC. Patients were recalled at 6 months and 1 year. A 1-year cumulative retention rate of 98% was recorded, while marginal staining was absent. ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1998-11-01 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 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
pub_type： 杂志文章
doi：
更新日期：2002-11-01 00:00:00
abstract：OBJECTIVES:To evaluate the clinical behavior of one-piece complete-coverage crowns and fixed partial dentures (FPDs) on teeth with vertical preparation without finish line biologically oriented preparation technique (BOPT). METHODS AND MATERIALS:This prospective study included 52 patients requiring treatment with rest...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/17-124-C
更新日期：2018-09-01 00:00:00
abstract：:The nature of the hybrid layer (HL) following chemical treatment has not been resolved. The effects of chemical treatments and polishing on HL morphology and composition were investigated using micro-Raman spectroscopy and SEM. Polished and unpolished SingleBond adhesive/dentin (a/d) interfaces from the same tooth wer...
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：2004-11-01 00:00:00
abstract：:This study compared the amount of artificial plaque synthesized in vitro by Streptococcus sobrinus on various dental materials using radioisotopes. In particular, plaque-retaining capacities of new types of ceramics were the focus of this study. Specimens were fabricated from the following materials (one amalgam alloy...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
