Microleakage of resin-modified glass ionomer restorations with selective enamel etching

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Aim: Bonding of resin-modified glass ionomers to enamel is an important quality, especially when saliva contamination is inevitable. This study evaluated if microleakage of a resinmodified glass ionomer improves with selective enamel etching, with or without saliva contamination. Methods: Class V cavities with the occlusal margin in enamel and the gingival margin on the root were prepared in extracted human permanent teeth and filled with a resin-modified glass ionomer using an acidic primer according to the manufacturer's recommendation or with an additional selective enamel etching step. Preparations were contaminated with saliva before primer application or before restoration placement (n=10). Restored teeth were thermocycled between 5°C and 55°C for 1000 cycles, stained with basic fuchsin, and sectioned. Microleakage distance was measured and analyzed with analysis of variance followed by Duncan post hoc test at a significance level of 0.05. Results: Enamel microleakage was highest when saliva contamination occurred before the placement of resin-modified glass ionomer. Microleakage distances were significantly reduced in the selective etching groups regardless of saliva contamination. However, selective etching of enamel increased microleakage in cementum. The increase in cementum leakage was significantly higher when saliva contamination occurred before restoration placement. Conclusion: Selective etching reduces enamel microleakage of a resin-modified glass ionomer even with saliva contamination, but it may increase microleakage at the cementum. The severity of microleakage is affected by the timing of saliva contamination.

Original languageEnglish (US)
JournalOperative dentistry
Volume39
Issue number4
DOIs
StatePublished - Jan 1 2014

Fingerprint

Dental Enamel
Saliva
Dental Cementum
Tooth
glass ionomer
Analysis of Variance

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Microleakage of resin-modified glass ionomer restorations with selective enamel etching. / Ludlow, S. W.; Farmer, S. N.; Donaldson, Martin; Versluis, Daranee; Versluis, Antheunis.

In: Operative dentistry, Vol. 39, No. 4, 01.01.2014.

Research output: Contribution to journalArticle

@article{d8b961ae967949daada2c0633141d821,
title = "Microleakage of resin-modified glass ionomer restorations with selective enamel etching",
abstract = "Aim: Bonding of resin-modified glass ionomers to enamel is an important quality, especially when saliva contamination is inevitable. This study evaluated if microleakage of a resinmodified glass ionomer improves with selective enamel etching, with or without saliva contamination. Methods: Class V cavities with the occlusal margin in enamel and the gingival margin on the root were prepared in extracted human permanent teeth and filled with a resin-modified glass ionomer using an acidic primer according to the manufacturer's recommendation or with an additional selective enamel etching step. Preparations were contaminated with saliva before primer application or before restoration placement (n=10). Restored teeth were thermocycled between 5°C and 55°C for 1000 cycles, stained with basic fuchsin, and sectioned. Microleakage distance was measured and analyzed with analysis of variance followed by Duncan post hoc test at a significance level of 0.05. Results: Enamel microleakage was highest when saliva contamination occurred before the placement of resin-modified glass ionomer. Microleakage distances were significantly reduced in the selective etching groups regardless of saliva contamination. However, selective etching of enamel increased microleakage in cementum. The increase in cementum leakage was significantly higher when saliva contamination occurred before restoration placement. Conclusion: Selective etching reduces enamel microleakage of a resin-modified glass ionomer even with saliva contamination, but it may increase microleakage at the cementum. The severity of microleakage is affected by the timing of saliva contamination.",
author = "Ludlow, {S. W.} and Farmer, {S. N.} and Martin Donaldson and Daranee Versluis and Antheunis Versluis",
year = "2014",
month = "1",
day = "1",
doi = "10.2341/13-290-L",
language = "English (US)",
volume = "39",
journal = "Operative Dentistry",
issn = "0361-7734",
publisher = "Indiana University School of Dentistry",
number = "4",

}

TY - JOUR

T1 - Microleakage of resin-modified glass ionomer restorations with selective enamel etching

AU - Ludlow, S. W.

AU - Farmer, S. N.

AU - Donaldson, Martin

AU - Versluis, Daranee

AU - Versluis, Antheunis

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Aim: Bonding of resin-modified glass ionomers to enamel is an important quality, especially when saliva contamination is inevitable. This study evaluated if microleakage of a resinmodified glass ionomer improves with selective enamel etching, with or without saliva contamination. Methods: Class V cavities with the occlusal margin in enamel and the gingival margin on the root were prepared in extracted human permanent teeth and filled with a resin-modified glass ionomer using an acidic primer according to the manufacturer's recommendation or with an additional selective enamel etching step. Preparations were contaminated with saliva before primer application or before restoration placement (n=10). Restored teeth were thermocycled between 5°C and 55°C for 1000 cycles, stained with basic fuchsin, and sectioned. Microleakage distance was measured and analyzed with analysis of variance followed by Duncan post hoc test at a significance level of 0.05. Results: Enamel microleakage was highest when saliva contamination occurred before the placement of resin-modified glass ionomer. Microleakage distances were significantly reduced in the selective etching groups regardless of saliva contamination. However, selective etching of enamel increased microleakage in cementum. The increase in cementum leakage was significantly higher when saliva contamination occurred before restoration placement. Conclusion: Selective etching reduces enamel microleakage of a resin-modified glass ionomer even with saliva contamination, but it may increase microleakage at the cementum. The severity of microleakage is affected by the timing of saliva contamination.

AB - Aim: Bonding of resin-modified glass ionomers to enamel is an important quality, especially when saliva contamination is inevitable. This study evaluated if microleakage of a resinmodified glass ionomer improves with selective enamel etching, with or without saliva contamination. Methods: Class V cavities with the occlusal margin in enamel and the gingival margin on the root were prepared in extracted human permanent teeth and filled with a resin-modified glass ionomer using an acidic primer according to the manufacturer's recommendation or with an additional selective enamel etching step. Preparations were contaminated with saliva before primer application or before restoration placement (n=10). Restored teeth were thermocycled between 5°C and 55°C for 1000 cycles, stained with basic fuchsin, and sectioned. Microleakage distance was measured and analyzed with analysis of variance followed by Duncan post hoc test at a significance level of 0.05. Results: Enamel microleakage was highest when saliva contamination occurred before the placement of resin-modified glass ionomer. Microleakage distances were significantly reduced in the selective etching groups regardless of saliva contamination. However, selective etching of enamel increased microleakage in cementum. The increase in cementum leakage was significantly higher when saliva contamination occurred before restoration placement. Conclusion: Selective etching reduces enamel microleakage of a resin-modified glass ionomer even with saliva contamination, but it may increase microleakage at the cementum. The severity of microleakage is affected by the timing of saliva contamination.

UR - http://www.scopus.com/inward/record.url?scp=84905866439&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84905866439&partnerID=8YFLogxK

U2 - 10.2341/13-290-L

DO - 10.2341/13-290-L

M3 - Article

VL - 39

JO - Operative Dentistry

JF - Operative Dentistry

SN - 0361-7734

IS - 4

ER -