Abstract：
:This study assessed the in vitro influence of surface sealing on the surface roughness of a posterior resin composite before and after toothbrushing. Thirty specimens (13 mm diameter x 1 mm high) were fabricated from Filtek-P60 resin composite and randomly assigned to three groups (n = 10): a non-sealed control and two groups sealed with one of the tested materials-a surface-penetrating sealant (Protect-it!-PI) and a one bottle adhesive system (Single Bond-SB). The samples were subjected to a surface roughness reading to determine the initial roughness, then submitted to simulated toothbrushing with 35,600 cycles for 100 minutes. Specimens were then cleaned and a post-abrasion surface roughness reading accomplished. Means (microm), recorded before (B) and after (A) toothbrushing, and standard deviations were: Control--(B): 0.032 (+/- 0.005), (A): 0.054 (+/- 0.005); PI-(B): 0.034 (+/- 0.005), (A): 0.060 (+/- 0.034); SB (B): 0.031 (+/- 0.004), (A): 0.047 (+/- 0.007). Data were tabulated and submitted to two-way ANOVA. No statistically significant difference was observed when the control and experimental groups were compared. However, a significant difference (p < 0.05) was found between the measurements performed before and after toothbrushing. Based on these results, it may be concluded that using either a surface penetrating sealant or a one bottle adhesive system did not provide the optimization of superficial integrity. The use of a dentifrice and toothbrush resulted in significant alterations to the surface smoothness of the resin composite.
journal_name
Oper Dentjournal_title
Operative dentistryauthors
Takeuchi CY,Orbegoso Flores VH,Palma Dibb RG,Panzeri H,Lara EH,Dinelli Wkeywords:
subject
Has Abstractpub_date
2003-05-01 00:00:00pages
281-6issue
3eissn
0361-7734issn
1559-2863journal_volume
28pub_type
临床试验,杂志文章,随机对照试验abstract：:Cracked tooth syndrome is known to occur most frequently in heavily restored teeth. Nevertheless, when the symptoms occur in intact teeth, there is difficulty in obtaining a correct diagnosis because it is difficult for the dentist to find where the crack is located. This clinical report describes the diagnostic proce...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/13-257
更新日期：2014-09-01 00:00:00
abstract：:The DIAGNOdent, a device used in caries detection, uses a laser to excite fluorescence from pigments in carious tooth structure. In clinical use assessing occlusal surfaces, distance and tooth structure may separate the instrument's tip from the fluorescent source.The aim of this in vitro study was to examine the effe...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/10-179-L
更新日期：2012-03-01 00:00:00
abstract：:The objective of this study was to evaluate the effect of surface sealants and polishing delay time on a nanohybrid resin composite roughness and microhardness. Eighty disc specimens were made with a nanohybrid resin (Esthet-X HD, Dentsply). The specimens were divided into two groups (n=40) according to polishing time...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/17-048-L
更新日期：2018-07-01 00:00:00
abstract：:This study evaluated the effect of cyclic loading on the bond strength of Class II restorations using different composite materials. Class II preparations with gingival margins located in dentin were performed on the mesial surface of 80 bovine incisors. The teeth were randomly allocated to eight groups (n=10) accordi...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/07-65
更新日期：2008-03-01 00:00:00
abstract：PURPOSE::The purpose of this study was to quantify the relative strength tolerance of 1-day and 30-day amalgam following saturation contamination with water, saliva, blood, and handpiece lubricant oil during condensation. METHODS AND MATERIALS::Valiant PhD XT amalgam was tested with 300 shear-strength (N=15) and 120 c...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/18-091-L
更新日期：2019-03-01 00:00:00
abstract：:This study evaluated in vitro the necessity of retention grooves in approximal boxes in class 2 preparations with faciolingually wide occlusal extensions (occlusal isthmus width 1.8 mm). Thirty-six class 2 mesio-occlusal cavities were prepared in sound human maxillary premolar teeth and divided into three groups of 12...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1993-03-01 00:00:00
abstract：:This study investigated the influence of different light sources associated with a transdental photoactivation technique on the marginal adaptation and hardness of composite restorations. Cavities (3 mm wide x 3 mm long x 1.5 mm in deep) were prepared on flattened bovine dentin and filled with Z250 composite (3M ESPE)...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/07-109
更新日期：2008-07-01 00:00:00
abstract：:This study investigated the effect of three equivalent radiant exposure energy application sequences (EASs): high intensity power (HIP: 1,177 mW/cm2, 40 seconds), low intensity power (LOP: 573 mW/cm2, 71 seconds) and ramp (RMP: 650 mW/cm2, 5 seconds, then the irradiance increases to 1047 mW/cm2, 37 seconds) on the mic...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/06-30
更新日期：2007-03-01 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：:This article reports the case of a patient with bilateral hypodontia of the maxillary lateral incisors who was dissatisfied with the outcome of initial orthodontic treatment, highlighting the importance of a multidisciplinary interaction among Restorative Dentistry, Orthodontics, and Implantology to achieve satisfacto...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/11-167-T
更新日期：2012-09-01 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：:This study determined the relationship between marginal adaptation to dentin cavity preparations, tensile bond strength of the restorations, and mechanical properties of the composites. Contraction gaps, tensile bond strengths, flexural strengths, and Young's modulus of eight commercial resin composites were determine...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1999-11-01 00:00:00
abstract：:The purpose of this study was to develop an accurate and reproducible intraoral method of measuring the distance between two teeth, and to conduct a clinical pilot study of the effect of placement of a class 2 posterior resin restoration upon this intertooth dimension. A Kaman Sciences KD-2611 noncontact displacement ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1989-10-01 00:00:00
abstract：:The role of silanes in the bonding of resin luting agents to glass-fiber posts (GFPs) is a controversial topic, and the question still remains whether post silanization is able to improve the retention of GFPs luted into root canals. Thus, this study was designed to determine whether evidence exists to justify silaniz...
journal_title：Operative dentistry
pub_type： 杂志文章,meta分析
doi：10.2341/14-330-O
更新日期：2015-11-01 00:00:00
abstract：:Hard tissue modification by means of laser irradiation is becoming popular in dentistry, since it promotes assorted responses between the tooth and the restorative material. Some studies on the bond strength of adhesive systems to Nd:YAG irradiated teeth have shown distinctive behaviors when irradiation was applied be...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/05-110
更新日期：2006-09-01 00:00:00
abstract：:This in vitro study assessed the effect of a step-cure light curing method on resin/dentin bond strength on the buccal wall of Class I cavities in human teeth. Occlusal enamel was removed to expose a flat dentin surface. Twenty four box-shaped cavities (C-factor = 4.5) were prepared in dentin. Prime&Bond 2.1 was appli...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/05-37
更新日期：2006-05-01 00:00:00
abstract：:Amalgapins are susceptible to early fracture during matrix removal and carving. The purpose of this study was to examine the early fracture resistance of amalgapin-retained restorations using a spherical amalgam alloy, an admixed amalgam alloy, a combination of admixed alloy over the spherical alloy, and a recently in...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1998-03-01 00:00:00
abstract：INTRODUCTION:Adding antibacterial agents to a dentin conditioner used for a glass ionomer cement (GIC) has been shown to be antibacterial; however, it is not known whether this antimicrobial conditioning agent affects the bond strength to dentin in situ. This study applied GIC to antibacterial conditioned dentin withou...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
abstract：:The antibacterial effects of the dentin bonding systems Syntac, ProBOND, Gluma 3-Step, the resin-modified glass ionomers Photac-Fil, Fuji Lining LC, Fuji II LC, and the polyacid-modified composite resins VariGlass, Geristore, and Infinity were evaluated using the cariogenic bacteria S mutans, L salivarius, S sobrinus,...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1996-11-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate the effect of phosphoric acid pre-etching times on shear bond strength (SBS) and surface free energy (SFE) with single-step self-etch adhesives. METHODS:The three single-step self-etch adhesives used were: 1) Scotchbond Universal Adhesive (3M ESPE), 2) Clearfil tri-S...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/15-221-L
更新日期：2016-07-01 00:00:00
abstract：:This in vitro study evaluated the wear resistance of resin composite polymerized using four different light-curing systems. For this, a well-defined cylindrical cavity preparation (4.0 mm in diameter x 3.0 mm in depth) was made in a ceramic block (n=4 per material/light condition). Uncured material, either a universal...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2002-07-01 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 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：: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：:Provisional restorations of full crown preparations may permit more microleakage of bacteria and their products than the final castings do. However, most investigations of the sealing qualities of cemented castings have reported that they too permit dye leakage. One approach to the problem is to seal the dentin with d...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：1992-01-01 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 aims of this study were to investigate 1) the influence of cleansing methods after saliva contamination and 2) aging conditions (thermocycling and water storage) on zirconia shear bond strength (SBS) with a resin cement. One hundred and eighty zirconia specimens were sandblasted with 50 μm aluminum oxide particles...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/13-323-L
更新日期：2015-03-01 00:00:00
abstract：:The critical point of the clinical procedure of direct splinting is the placement of the fiber-reinforced strip, which has to be well adapted to tooth surfaces. This article describes the use of aluminum foil to cover and protect the fiber-reinforced strip from light polymerization during the direct splinting techniqu...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/05-68
更新日期：2006-05-01 00:00:00
abstract：:This research investigated the effects of wet and dry conditions of phosphoric acid etched dentin on resin bonding and determined the optimum moisture condition for resin bonding using an ethanol-based one-bottle adhesive system. Bovine dentin surfaces were etched with 35% phosphoric acid and rinsed with water. Under ...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：
更新日期：2002-11-01 00:00:00
abstract：PURPOSE:To evaluate the effect of different strategies for post cementation on the pullout bond strength of a double-tapered glass fiber post cemented into a root canal. MATERIALS AND METHODS:The root canals of 70 single-rooted bovine teeth (16 mm-length) were prepared to 9 mm using the preparation drill of a double-t...
journal_title：Operative dentistry
pub_type： 杂志文章
doi：10.2341/08-113
更新日期：2009-07-01 00:00:00
