Abstract：
:The purpose of this study was to determine the relationship between the deterioration and the later failure of a very large number of amalgams and anterior resin composites examined over periods of up to 16 years. Assessments were made of the deterioration of various clinical factors or characteristics of the restorative materials that were thought to predict later failures. True failures, which were directly related to the restorative materials, accounted for 7.5% of the amalgam and 30.4% of the composite restorations. For the amalgams, there was a significant association found between the failures and surface tarnishing. Marginal fracture and marginal staining were not associated significantly with any of the three different failure modes. For the composites there were significant associations found between the failures and surface roughness, marginal fracture, and color mismatch. Surface staining and marginal staining were not associated significantly with any of the three different failure modes. Many restorations assessed as being unsatisfactory continued to function for a further 2.5 to 3.5 years on average before being replaced, often for unrelated reasons. There is a need to define unsatisfactory restorations more clearly in terms of actual adverse effects on dental health, rather than merely in terms of restoration deterioration.
journal_name
Oper Dentjournal_title
Operative dentistryauthors
Smales RJ,Webster DAsubject
Has Abstractpub_date
1993-07-01 00:00:00pages
130-7issue
4eissn
0361-7734issn
1559-2863journal_volume
18pub_type
杂志文章abstract：:This study evaluated the in vivo effects of bleaching agents containing 10% carbamide peroxide (Platinum/Colgate) or 7.5% hydrogen peroxide (Day White 2Z/Discus Dental) on mutans Streptococcus during dental bleaching. The products were applied on 30 volunteers who needed dental bleaching. In each volunteer, one of the...
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
abstract：:This in vitro study evaluated the interfacial integrity of Class II resin composite restorations. The influence of a flowable composite and additional enamel etching was also evaluated. Deep, saucer-shaped Class II cavities were prepared in the mesial and distal proximal surfaces of 25 extracted human molars and assig...
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：PURPOSE:To evaluate the effect of zirconia primers, air-abrasion, and tribochemical surface treatment methods on the shear bond strength between yttria-tetragonal zirconia polycrystal (Y-TZP) ceramic and self-adhesive resin cement. METHODS AND MATERIALS:Y-TZP ceramic surfaces were ground flat with 600-grit silicon car...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/13-149-L
更新日期：2015-01-01 00:00:00
abstract：:This study evaluated the two-year clinical performance of two minimally invasive cavity preparation techniques, bur and laser, in Class I occlusal resin composite restorations. Twenty-seven patients, each having at least one pair of occlusal caries, were enrolled in this study. For each patient, one of the cavities wa...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/09-339-C
更新日期：2010-09-01 00:00:00
abstract：:This study evaluated the influence of ceramic thickness and ceramic materials on fracture resistance of posterior partial coverage ceramic restorations. Forty extracted molars were allocated into four groups (n=10) to test for two variables: 1) the thickness of ceramic (1 mm or 2 mm) and 2) the ceramic materials (a li...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/12-459-L
更新日期：2015-03-01 00:00:00
abstract：:This in vitro study evaluated the amount of fluoride released from fluoride-containing materials over a period of 28 days. Six disk samples (2.06 +/- 0.06 cm2) were prepared of each material and divided at random into seven groups: Group 1: Chelon-Fil; Group 2: Chelon-Silver; Group 3: VariGlass; Group 4: Dyract; Group...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1996-09-01 00:00:00
abstract：:The present clinical case report describes the clinical steps of enamel microabrasion associated with dental bleaching to restore severely-pitted fluorosed teeth. The process of removing the fluorotic superficial stains started by using macroabrasion with a water-cooled fine tapered 3195 FF diamond bur. Rubber dam iso...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/18-116-T
更新日期：2019-11-01 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：:Treatment of a caries active patient requires the clinician to be knowledgeable in the restorative and risk management issues with which these patients often present. Modifications of risk factors that promote dental caries play an important part in the long-term restorative success in these patients. Patient complian...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2002-03-01 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：: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：10.2341/1559-2863-42.6.680
更新日期：2017-11-01 00:00:00
abstract：:To protect glass-ionomer cement from moisture contamination and dehydration during initial setting, immediate application of a surface coating agent is recommended. This study compared the effect of various surface coatings on F release from glass-ionomer cement. Twenty glass-ionomer cement (Ketac Fil Aplicap) disks (...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：:This study evaluated the regional tensile bond strength of a dual-cure resin composite core material to root canal dentin using photo and dual-cure adhesives and different modes of polymerization. Nineteen extracted premolars were decoronated and their root canals prepared to a depth of 8 mm and a width of 1.4 mm usin...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2003-09-01 00:00:00
abstract：:This study evaluated the effect of an intracoronal resin composite pin on Class IV resin composite restorations. A control group of 16 bovine teeth was prepared with standardized conventional Class IV preparations. For an experimental group, 16 similar Class IV preparations were made, with the addition of an intracoro...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2000-07-01 00:00:00
abstract：:The purpose of this study was to compare the long-term survivals of two low-copper and three high-copper amalgam alloys, and to analyze four clinical factors for their possible effects on the restoration survivals. Some 1476 polished restorations were placed in hospital patients by a large number of operators and asse...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1991-09-01 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：:Post-operative sensitivity (POS) may be observed in recently placed posterior composites. Evidence-based guidelines for the management of posterior composites with POS have yet to be determined. This study examined a retrospective analysis of the findings of a unique multi-center clinical trial to investigate the five...
journal_title：Operative dentistry
pub_type： 临床试验,杂志文章,多中心研究
doi：
更新日期：2003-11-01 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：:Dental fluorosis is a developmental disturbance of enamel caused by excessive fluoride on ameloblasts during enamel formation. Patients often present to the dentist with a main goal of improving their esthetic appearance. This case report describes a minimally invasive technique for treating a severe case of enamel fl...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/12-238-S
更新日期：2013-07-01 00:00:00
abstract：STATEMENT OF THE PROBLEM:Precise shade matching can be one of the most difficult tasks for the dentist and some variables may influence the process of shade comparison. PURPOSE OF THE STUDY:This study tested the differences in shade perception between genders, the influence of the observer's clinical experience, and t...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/10-057-C
更新日期：2012-05-01 00:00:00
abstract：PURPOSE:To investigate the effect of different light-curing units and depths on the degree of conversion (DC) through Fourier transform infrared spectroscopy (FTIR) and Knoop Hardness Number (KHN) of a silorane-based composite resin (Filtek LS, 3M ESPE, St Paul, MN, USA) (LS). MATERIALS AND METHODS:LS specimens mounte...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/12-479
更新日期：2014-05-01 00:00:00
abstract：:The available and proposed methods for determining the in vivo occlusal wear values of classes 1 and 2 restorations made of resinfilled composite materials are critically reviewed. A methodology to be used to address the fundamental question of the link between the wear of the in vivo restorations and the relevant mec...
journal_title：Operative dentistry
pub_type： 杂志文章,评审
doi：
更新日期：1991-03-01 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
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：OBJECTIVES:This randomized clinical trial tested the three-month desensitizing effect of two protocols using nano-hydroxyapatite formulations compared with Pro-Argin and fluoride varnish. METHODS:Twenty-eight subjects with 137 teeth presenting dentin exposure with a minimal hypersensitivity of four on the visual analo...
journal_title：Operative dentistry
pub_type： 杂志文章,随机对照试验
doi：10.2341/15-145-C
更新日期：2016-07-01 00:00:00
abstract：:The current study investigated the influence of carbamide peroxide on the flexural strength of tooth-colored restorative materials at two environmental temperatures. Seven restorative materials were used, including four resin composites (Filtek Z350, Filtek Z250, Synergy Flow and Filtek P60), a polyacid-modified compo...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/09-139-L
更新日期：2010-05-01 00:00:00
abstract：OBJECTIVES:To evaluate the effect of application protocol in resin-enamel microshear bond strength (μSBS), in situ degree of conversion, and etching pattern of three universal adhesive systems. METHODS AND MATERIALS:Sixty-three extracted third molars were sectioned in four parts (buccal, lingual, and proximals) and di...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/15-213-L
更新日期：2016-09-01 00:00:00
abstract：:This study investigated the influence of curing lights and modes on the cross-link density of dental composites. Four LED/halogen curing lights (LED-Elipar Freelight [FL], 3M-ESPE and GC e-light [EL], GC; high intensity halogen-Elipar Trilight [TL], 3M-ESPE; very high intensity halogen-Astralis 10 [AS], Ivoclar Vivade...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2004-07-01 00:00:00
abstract：:The objective of this paper is to review the literature concerning factors affecting adhesion to mineralized tissues. Factors related to the physicochemical structure of the adherents and to the inherent properties of composite restorative materials, along with the postulated bonding mechanisms of current adhesive sys...
journal_title：Operative dentistry
pub_type： 杂志文章,评审
doi：
更新日期：1992-01-01 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
