Effect of light activation of pulp-capping materials and resin composite on dentin deformation and the pulp temperature change

C. J. Soares, M. S. Ferreira, A. A. Bicalho, M. De Paula Rodrigues, S. S.L. Braga, Antheunis Versluis

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Objectives: To analyze the effect of pulp-capping materials and resin composite light activation on strain and temperature development in the pulp and on the interfacial integrity at the pulpal floor/pulp-capping materials in large molar class II cavities. Methods: Forty extracted molars received large mesio-occlusal-distal (MOD) cavity bur preparation with 1.0 mm of dentin remaining at the pulp floor. Four pulp-capping materials (self-etching adhesive system, Clearfil SE Bond [CLE], Kuraray), two light-curing calcium hydroxide cements (BioCal [BIO], Biodinâ mica, and Ultra-Blend Plus [ULT], Ultradent), and a resin-modified glass ionomer cement- (Vitrebond [VIT], 3M ESPE) were applied on the pulpal floor. The cavities were incrementally restored with resin composite (Filtek Z350 XT, 3M ESPE). Thermocouple (n=10) and strain gauge (n=10) were placed inside the pulp chamber in contact with the top of the pulpal floor to detect temperature changes and dentin strain during light curing of the pulpcapping materials and during resin composite restoration. Exotherm was calculated by subtracting postcure from polymerization temper-ature (n=10). Interface integrity at the pulpal floor was investigated using micro-CT (Sky- Scan 1272, Bruker). The degree of cure of capping materials was calculated using the Fourier transform infrared and attenuated total reflectance cell. Data were analyzed using one-way analysis of variance followed by the Tukey test (a=0.05).

Original languageEnglish (US)
Pages (from-to)71-80
Number of pages10
JournalOperative dentistry
Volume43
Issue number1
DOIs
StatePublished - Jan 1 2018

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Dental Pulp Capping
Composite Resins
Dentin
Light
Temperature
Calcium Hydroxide
Glass Ionomer Cements
Dental Pulp Cavity
Fourier Analysis
Polymerization
Adhesives
Analysis of Variance

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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Effect of light activation of pulp-capping materials and resin composite on dentin deformation and the pulp temperature change. / Soares, C. J.; Ferreira, M. S.; Bicalho, A. A.; De Paula Rodrigues, M.; Braga, S. S.L.; Versluis, Antheunis.

In: Operative dentistry, Vol. 43, No. 1, 01.01.2018, p. 71-80.

Research output: Contribution to journalArticle

Soares, C. J. ; Ferreira, M. S. ; Bicalho, A. A. ; De Paula Rodrigues, M. ; Braga, S. S.L. ; Versluis, Antheunis. / Effect of light activation of pulp-capping materials and resin composite on dentin deformation and the pulp temperature change. In: Operative dentistry. 2018 ; Vol. 43, No. 1. pp. 71-80.
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