Clinical, double blind, randomized controlled trial of experimental adhesive protocols in caries-affected dentin

Pintado-Palomino, Karen; Almeida, Cecília Vilela Vasconcelos Barros de; Motta, Raphael Jurca Gonçalves da; Fortes, João Henrique Parise; Tirapelli, Camila

doi:10.1007/s00784-018-2615-7

Cited by 16 publications

(16 citation statements)

References 55 publications

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“…The conservation of dental tissue, either intact or subject to remineralization, has been basing the concept of minimally invasive dentistry ( Ismail et al, 2013 , Philip, 2019 ). In this way, clinical interventions should be limited to the removal of friable enamel and softened dentin (caries-infected dentin), preserving enamel and partially demineralized dentin (caries-affected dentin) regions ( Pintado-Palomino et al, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

“…Encouraging minimal invasive dentistry ( Mm et al, 2014 ), mainly for dental caries treatment ( Thompson et al, 2008 , Bjørndal, 2018 ), has led to the development of conservative strategies ( McComb, 2000 , Pintado-Palomino et al, 2019 ) that involve the preservation of the affected dentin for lesion treatment ( Statement, 2017 ). In this regard, the development of bioactive restorative materials has become a necessity and it has been the subject of studies ( Abuna et al, 2016 , Amrollahi et al, 2016 , Braga, 2019 , Sauro and Pashley, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

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Development and characterization of experimental ZnO cement containing niobophosphate bioactive glass as filling temporary material

Ferreira

Abuna

Oliveira

et al. 2021

The Saudi Dental Journal

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Aims The aim of this study was to develop and characterize a temporary restorative material based on a zinc oxide matrix containing niobophosphate bioactive glass (NbG) for the caries-affected dentin treatment. Material and methods NbG was added to a ZnO 2 matrix in different concentrations (wt%). EDS-SEM, ATR-FTIR and XRD analyses were performed to characterize the cement. Calcium release was evaluated in TRIS solution after 1, 7 and 14 days by colorimetric method (A 650 ). Compressive strengths and setting times were performed to analyze mechanical properties. Results EDS spectra confirmed the presence of Ca, P and Nb in the groups containing NbG. EDS mapping exhibit the ZnO 2 homogeneous distribution, and NbG immersed in this matrix. Peaks suggesting interaction between matrix and NbG were not detected in Ftir spectra. Calcium releasing showed to be time-dependent for experimental groups containing 10, 20, 30 and 40%. The NbG incorporation progressively increased the compressive strength values in the experimental groups. NbG incorporation seemed to influence the ZnO 2 matrix early setting reaction. No statistical difference was observed in the final setting time. Conclusion The addition of NbG particles into zinc oxide matrix could work as a mechanical reinforcement. It is suggested that the calcium released by the cement containing at least 10% NbG could induce apatite formation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and characterization of experimental ZnO cement containing niobophosphate bioactive glass as filling temporary material

Ferreira

Abuna

Oliveira

et al. 2021

The Saudi Dental Journal

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“…Meanwhile, there is evidence indicating that structural changes in CAD are reversible (Meraji et al, 2018 ). Consequently, minimally invasive restorative dentistry is recommended to preserve the CAD to protect the tooth structure and vitality of the pulp in direct and indirect restorations (Elsharkawy, 2018 ; Pintado‐Palomino et al, 2019 ). However, because of the chemical and mechanical alterations in CAD, such as a thicker and irregular smear layer with fibril‐like structures, and the presence of narrow and occlude dentinal tubules (Meraji et al, 2018 ; Pintado‐Palomino et al, 2019 ; Taniguchi et al, 2009 ), bonding to CAD is challenging.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the shear bond strength and remineralization effect of calcium silicate‐based and conventional self‐adhesive resin cements to caries‐affected dentin

Tavangar

Safarpour

Parizi

et al. 2022

Clinical & Exp Dental Res

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Objective Given the importance of preserving caries‐affected dentin (CAD) in conservative dentistry, the shear bond strength (SBS) of different resin cements to CAD has been investigated. Here, we aimed to compare the SBS and remineralizing effect of a calcium silicate (TheraCem) and conventional self‐adhesive cement (Panavia SA) on the SBS of CAD. Materials and Methods Forty‐eight extracted third molars (24 sound and 24 CAD) were used. In each group, 12 teeth were prepared for bonding to TheraCem or Panavia SA. After removal of the enamel and caries, resin composite cylinders were luted on the prepared dentin. After 28 days of storage in the artificial saliva, SBS was measured and the failure mode analysis was investigated. The images of fractured sections were analyzed using scanning electron microscopy and energy‐dispersive X‐ray to evaluate the Ca/P weight ratio. Results SBS of CAD and sound dentin was not different when cemented with TheraCem (9.56 ± 4.51 vs. 9.17 ± 2.76, p = .806), but the CAD showed significantly lower SBS to Panavia SA (9.4 ± 2.36 vs. 7.39 ± 2.18, p = .015). The Ca/P ratio in CAD was significantly higher when bonded to both TheraCem and Panavia‐SA than that of the controls (p = .001); however, this ratio was not different for those bonded to TheraCem compared to Panavia SA. Conclusions Based on our results, TheraCem as a calcium silicate cement shows better SBS to attach the restoration to CAD as compared to Panavia SA. Obliteration and mineralization of the dentinal tubules in TheraCem were also higher than in Panavia SA. However, their ability to improve the amount of the Ca/P ratio in CAD was similar.

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“…7,8 Using this strategy, the soft and firm dentin are removed, and the demineralized hard dentin is maintained because it is a remineralizable tissue. 9 Contaminated or demineralized dentin close to the pulp floor should be preserved to avoid accidental pulp exposure. 10 Partial removal of carious tissue is a conservative approach that preserves the underlying remineralized dentin.…”

Section: Introductionmentioning

confidence: 99%

Selective carious tissue removal and glass ionomer liner reduction of pulp stress in bulk fill resin composite restorations

et al. 2021

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To evaluate the effect of selective or nonselective carious tissue removal and the use of a resin-modified glass ionomer (RMGIC) liner under bulk fill resin composite restoration on the stress at the pulp chamber, the elastic moduli of hard, firm, soft and intact dentin were calculated using nanoindentation. Post-gel shrinkage of the bulk fill resin composite and RMGIC were determined using the straingauge method. Six finite element models were created by using digital radiography with the combination of two study factors: a) carious tissue removal: selective removal or nonselective removal of carious tissue, and b) use of RMGIC liner: with or without 1.0 mm of RMGIC liner. The modified von Mises stresses (mvm) (MPa) were extracted on the nodes of the internal wall of the pulp ceiling chamber at 100 N occlusal loading. Data were analyzed descriptively and recorded quantitively. Both study factors influenced the stress distribution. The mvm stress during the restorative procedure was higher for nonselective carious tissue removal without RMGIC (25.9 MPa) and lower for selective carious tissue removal associated with RMGIC (13.5 MPa). The dentin elastic modulus increased from soft carious (3.6 ± 0.3 MPa) to firm carious (5.2 ± 1.0 MPa) to hard carious (10.9 ± 1.2 MPa) to intact dentin (22.7 ± 3.0 MPa). Molars with carious lesions showed high mvm stress at the pulp ceiling (89.6 MPa) and at fragilized coronal structure remaining. Selective carious tissue removal followed by restoration using a Vitrebond liner and Tetric N-Ceram Bulk fill reduced the stress at the pulp chamber ceiling.

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Clinical, double blind, randomized controlled trial of experimental adhesive protocols in caries-affected dentin

Abstract: Adhesive protocols may influence the success of resin composite restorations in CAD; this is important because failure can lead to caries, re-incidence, and/or clinical re-work.

Cited by 16 publications

References 55 publications

Development and characterization of experimental ZnO cement containing niobophosphate bioactive glass as filling temporary material

Development and characterization of experimental ZnO cement containing niobophosphate bioactive glass as filling temporary material

Evaluating the shear bond strength and remineralization effect of calcium silicate‐based and conventional self‐adhesive resin cements to caries‐affected dentin

Selective carious tissue removal and glass ionomer liner reduction of pulp stress in bulk fill resin composite restorations

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