Dye staining gap test: An alternative method for assessing marginal gap formation in composite restorations

Alonso, Roberta Caroline Bruschi; Correr, Gisele Maria; Cunha, Leonardo Gonçalves; Borges, Ana Flávia Sanches; Puppin-Rontani, Regina Maria; Sinhoreti, Mário Alexandre Coelho

doi:10.1080/00016350500474565

Cited by 23 publications

(18 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The detected gaps were measured by a digital system that has presented reliable results. The gaps identified by the digital system are easy to carry out and the results are valid when compared to a scanning electronic microscopy analysis of the same gaps 1 .…”

Section: Introductionmentioning

confidence: 87%

“…After storage, Caries Detector ® (Kuraray Co., Osaka, Japan) was applied on the restoration margins for 5 s, followed by rinsing in tap water gentle air drying 1 . Two black dots were drawn 2 mm apart with a pen using a digital caliper rule to calibrate the measurement used in the Image Tool 3.0 software (University of Texas, Health Science Center at San Antonio, TX, USA).…”

Section: Methodsmentioning

confidence: 99%

“…Gap measurement is a reliable method of evaluating the initial quality of resin restorations 1 . The presence of an enamel gap is an important factor that predicts future failures in composite restorations, and this occurs because of the composite resin polymerization shrinkage.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of resin luting agents and 1% NaOCl on the marginal fit of indirect composite restorations in primary teeth

et al. 2011

View full text Add to dashboard Cite

ObjectiveThe purpose of this study was to provide information regarding the marginal adaptation of composite resin onlays in primary teeth previously treated with 1% sodium hypochlorite (NaOCl) (pulp irrigant) using two different resin luting agents. Material and MethodsForty extracted sound primary molars had their crowns prepared in a standardized machine and were randomly divided into 4 groups (n=10): G1 (1% NaOCl irrigation+EnForce); G2 (EnForce); G3 (1% NaOCl irrigation+Rely X); G4 (Rely X). The onlays were made with Z250 composite resin on plaster models. After luting, the tooth/restoration set was stored in 100% relative humidity at 37ºC for 24 h and finished with Soflex discs. Caries Detector solution was applied at the tooth/restoration interface for 5 s. The specimens were washed and four digital photos of each tooth were then taken. The extents of the gaps were measured with Image Tool 3.0 software. The percentage data were submitted to a Kruskal-Wallis test (α=0.05). The Relative Risk test analyzed the chance of a gap presence correlated to each group. ResultsThere were no statistically significant differences (p>0.05) among the groups. The relative risk test revealed that some groups were more apt to have a presence of gaps than others. ConclusionNeither the 1% NaOCl treatment nor the resin luting agents caused any alterations in the dental substrate that could have influenced the marginal adaptation of composite onlays in primary teeth.

show abstract

Section: Introductionmentioning

confidence: 87%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of resin luting agents and 1% NaOCl on the marginal fit of indirect composite restorations in primary teeth

et al. 2011

View full text Add to dashboard Cite

show abstract

“…First, images of each restorative surface were captured at X40 magnification. After that, the digitalized images were analyzed using the Image J software (National Institute of Mental Health, Bethesda, USA) 1 , 28 . The %MI was calculated as the ratio of the stained cavity interface to the entire cavity perimeter by using the following formula:…”

Section: Methodsmentioning

confidence: 99%

Marginal integrity of restorations produced with a model composite based on polyhedral oligomeric silsesquioxane (POSS)

et al. 2015

View full text Add to dashboard Cite

Marginal integrity is one of the most crucial aspects involved in the clinical longevity of resin composite restorations. Objective To analyze the marginal integrity of restorations produced with a model composite based on polyhedral oligomeric silsesquioxane (POSS).Material and Methods A base composite (B) was produced with an organic matrix with UDMA/TEGDMA and 70 wt.% of barium borosilicate glass particles. To produce the model composite, 25 wt.% of UDMA were replaced by POSS (P25). The composites P90 and TPH3 (TP3) were used as positive and negative controls, respectively. Marginal integrity (%MI) was analyzed in bonded class I cavities. The volumetric polymerization shrinkage (%VS) and the polymerization shrinkage stress (Pss - MPa) were also evaluated.Results The values for %MI were as follows: P90 (100%) = TP3 (98.3%) = B (96.9%) > P25 (93.2%), (p<0.05). The %VS ranged from 1.4% (P90) to 4.9% (P25), while Pss ranged from 2.3 MPa (P90) to 3.9 MPa (B). For both properties, the composite P25 presented the worst results (4.9% and 3.6 MPa). Linear regression analysis showed a strong positive correlation between %VS and Pss (r=0.97), whereas the correlation between Pss and %MI was found to be moderate (r=0.76).Conclusions The addition of 25 wt.% of POSS in methacrylate organic matrix did not improve the marginal integrity of class I restorations. Filtek P90 showed lower polymerization shrinkage and shrinkage stress when compared to the experimental and commercial methacrylate composite.

show abstract

“…The main factors that determine shrinkage stress and consequently, gap formation in composite restorations are degree of polymerization shrinkage, elastic modulus, and viscosity of the composite. [ 2 ] Flowable composite resins have been reported to improve marginal adaptation of restorations in relation to their rheological properties. Due to their relative flexibility and low modulus of elasticity, when employed as an intermediate layer, these liners help relieve stresses during polymerization shrinkage of the composite restorations and may provide better adaptation.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of marginal adaptation of a self-adhering flowable composite resin liner: A scanning electron microscopic study

et al. 2018

View full text Add to dashboard Cite

Background:“Self-adhering composite resins,” are claimed to eliminate the need for a separate acid etching and bonding agent application step, thus simplifying the direct restorative procedure, both regarding the technique sensitivity and the duration of treatment.Aim:The aim of this study is to evaluate the marginal adaptation of self-adhering flowable composite (Dyad flow) in comparison to the conventional flowable composite (Tetric N-flow) under scanning electron microscope (SEM).Settings and Design:This in vitro study was conducted on 44 extracted human maxillary premolars.Materials and Methods:Box-only Class II cavities on the distal surface were prepared with the dimensions of 4 mm buccolingual width, 2 mm mesiodistal depth, and gingival margin at the cementoenamel junction. They were divided into two groups of 22 teeth each and were restored accordingly: Group I – Gingival floor lined with Tetric N-Flow and were restored with Tetric N-Ceram; Group II – Gingival floor lined with Dyad flow and were restored with Herculite Precis. After thermal cycling, the sectioned tooth-restoration interfaces were evaluated for the marginal adaptation under SEM at ×200 magnification.Statistical Analysis Used:The resultant data were statistically analyzed by applying Chi-square test, using the SPSS (version 16.0) software.Results and Conclusion:There was no statistically significant difference between the study groups regarding the marginal adaptation. The marginal adaptation of the self-adhering flowable composite when used as a liner in Class II restorations was comparable to that of the conventional flowable composite.

show abstract

Dye staining gap test: An alternative method for assessing marginal gap formation in composite restorations

Abstract: Dye staining the gaps can be used with good reliability to evaluate the gap formation in composite restorations.

Cited by 23 publications

References 13 publications

Effects of resin luting agents and 1% NaOCl on the marginal fit of indirect composite restorations in primary teeth

Effects of resin luting agents and 1% NaOCl on the marginal fit of indirect composite restorations in primary teeth

Marginal integrity of restorations produced with a model composite based on polyhedral oligomeric silsesquioxane (POSS)

Evaluation of marginal adaptation of a self-adhering flowable composite resin liner: A scanning electron microscopic study

Contact Info

Product

Resources

About