Efekty wstępnego wytrawiania ubytków klasy V wypełnionych materiałami kompozytowymi na bazie siloranów i metakrylanów

Translated title of the contribution: Effects of pre-etching in class V cavities restored with silorane and methacrylate-based composites

Giuseppe Lo Giudice, Roberto Lo Giudice, Angelo Sergio Lizio, Giuseppe Pantaleo, Frank Lipari, Michele Simeone, Alessandra Valletta, Carlo Rengo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Background. Self-etching adhesive (SEA) systems were recently introduced to simplify the bonding procedure and were initially considered a good replacement for the etch-and-rinse adhesive system that uses orthophosphoric acid (PA) for enamel and dentin etching. Siloranes, a new class of ring opening monomers, were synthesized to overcome the problems related to polymerization shrinkage. This new type of monomer is obtained from the reaction of oxirane and silorane molecules with a volumetric shrinkage determined to be 0.99%. Objectives. To assess the influence of preliminary phosphoric acid etching on the sealing ability of silorane- and methacrylate-based composites. Material and methods. Standard class V cavities were prepared on the buccal side of 48 extracted, sound, human premolars. The specimens were randomly divided in two groups: A) Silorane System®/Filtek Silorane®; B) Scotchbond Universal®/Filtek Supreme®. Each group was divided in two subgroups. A1) and B1): no preetching was performed. A2) and B2): selective, enamel pre-etching was performed. The interfacial sealing ability of the materials was evaluated by scoring the depth of methylene blue penetration through optical microscope observations. The differences in infiltration scores recorded for the tested materials were evaluated for statistical significance (Kruskal-Wallis ANOVA, Mann-Whitney U test, p < 0.05). Results. No groups showed a “0” score, and group B2 had the lowest individual score, reaching at least a “2” score. In the silorane groups, pre-etching decreased the infiltration score but the result was not statistically significant. No statistically significant differences emerged among the tested materials except for the Bis-GMA composite restored group where the pre-etching significantly reduced the interfacial leakage (p < 0.05). Conclusions. Selective enamel pre-etching significantly reduced the marginal infiltration in class V cavities, restored with Bis-GMA composite and a self-etching adhesive system. The low-shrinking silorane composite achieved better sealing ability.

Original languagePolish
Pages (from-to)365-372
Number of pages8
JournalDental and Medical Problems
Volume53
Issue number3
DOIs
Publication statusPublished - Jul 1 2016

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Silorane Resins
Methacrylates
Dental Enamel
Bisphenol A-Glycidyl Methacrylate
Adhesives
Ethylene Oxide
Cheek
Methylene Blue
Bicuspid
Dentin
Nonparametric Statistics
varespladib methyl
Polymerization
Analysis of Variance

Keywords

  • Acid-etching
  • Adhesion
  • Microleakage
  • Self-etch
  • Silorane

ASJC Scopus subject areas

  • Medicine(all)
  • Dentistry(all)

Cite this

Lo Giudice, G., Lo Giudice, R., Lizio, A. S., Pantaleo, G., Lipari, F., Simeone, M., ... Rengo, C. (2016). Efekty wstępnego wytrawiania ubytków klasy V wypełnionych materiałami kompozytowymi na bazie siloranów i metakrylanów. Dental and Medical Problems, 53(3), 365-372. https://doi.org/10.17219/dmp/62525

Efekty wstępnego wytrawiania ubytków klasy V wypełnionych materiałami kompozytowymi na bazie siloranów i metakrylanów. / Lo Giudice, Giuseppe; Lo Giudice, Roberto; Lizio, Angelo Sergio; Pantaleo, Giuseppe; Lipari, Frank; Simeone, Michele; Valletta, Alessandra; Rengo, Carlo.

In: Dental and Medical Problems, Vol. 53, No. 3, 01.07.2016, p. 365-372.

Research output: Contribution to journalArticle

Lo Giudice, G, Lo Giudice, R, Lizio, AS, Pantaleo, G, Lipari, F, Simeone, M, Valletta, A & Rengo, C 2016, 'Efekty wstępnego wytrawiania ubytków klasy V wypełnionych materiałami kompozytowymi na bazie siloranów i metakrylanów', Dental and Medical Problems, vol. 53, no. 3, pp. 365-372. https://doi.org/10.17219/dmp/62525
Lo Giudice, Giuseppe ; Lo Giudice, Roberto ; Lizio, Angelo Sergio ; Pantaleo, Giuseppe ; Lipari, Frank ; Simeone, Michele ; Valletta, Alessandra ; Rengo, Carlo. / Efekty wstępnego wytrawiania ubytków klasy V wypełnionych materiałami kompozytowymi na bazie siloranów i metakrylanów. In: Dental and Medical Problems. 2016 ; Vol. 53, No. 3. pp. 365-372.
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AU - Lo Giudice, Giuseppe

AU - Lo Giudice, Roberto

AU - Lizio, Angelo Sergio

AU - Pantaleo, Giuseppe

AU - Lipari, Frank

AU - Simeone, Michele

AU - Valletta, Alessandra

AU - Rengo, Carlo

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AB - Background. Self-etching adhesive (SEA) systems were recently introduced to simplify the bonding procedure and were initially considered a good replacement for the etch-and-rinse adhesive system that uses orthophosphoric acid (PA) for enamel and dentin etching. Siloranes, a new class of ring opening monomers, were synthesized to overcome the problems related to polymerization shrinkage. This new type of monomer is obtained from the reaction of oxirane and silorane molecules with a volumetric shrinkage determined to be 0.99%. Objectives. To assess the influence of preliminary phosphoric acid etching on the sealing ability of silorane- and methacrylate-based composites. Material and methods. Standard class V cavities were prepared on the buccal side of 48 extracted, sound, human premolars. The specimens were randomly divided in two groups: A) Silorane System®/Filtek Silorane®; B) Scotchbond Universal®/Filtek Supreme®. Each group was divided in two subgroups. A1) and B1): no preetching was performed. A2) and B2): selective, enamel pre-etching was performed. The interfacial sealing ability of the materials was evaluated by scoring the depth of methylene blue penetration through optical microscope observations. The differences in infiltration scores recorded for the tested materials were evaluated for statistical significance (Kruskal-Wallis ANOVA, Mann-Whitney U test, p < 0.05). Results. No groups showed a “0” score, and group B2 had the lowest individual score, reaching at least a “2” score. In the silorane groups, pre-etching decreased the infiltration score but the result was not statistically significant. No statistically significant differences emerged among the tested materials except for the Bis-GMA composite restored group where the pre-etching significantly reduced the interfacial leakage (p < 0.05). Conclusions. Selective enamel pre-etching significantly reduced the marginal infiltration in class V cavities, restored with Bis-GMA composite and a self-etching adhesive system. The low-shrinking silorane composite achieved better sealing ability.

KW - Acid-etching

KW - Adhesion

KW - Microleakage

KW - Self-etch

KW - Silorane

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