Header

UZH-Logo

Maintenance Infos

Adhesive application before hydrofluoric acid etching during repair procedure in dentistry?


Hartz, Julia J; Zeig, Tajana; Attin, Thomas; Wegehaupt, Florian J (2021). Adhesive application before hydrofluoric acid etching during repair procedure in dentistry? International Journal of Adhesion and Adhesives, 111:102960.

Abstract

Purpose

To evaluate the influence of hydrofluoric acid (HF) contamination on the microtensile bond strength (μTBS) during dental repair procedures before and after application of different dentin adhesives (Optibond FL and Optibond XTR).
Materials and methods

Thirty-five human molars were ground down into the dentin and were randomly divided into seven groups (G1-G7; n = 5), G1 and G2 being the control groups. Only in the test groups (G3-G7) samples were subjected to HF (9,5%) contamination. Two adhesive systems, Optibond FL (G1, G3, G4, G6) and Optibond XTR (G2, G5, G7) were used. In G3-G5 the adhesive was applied before and after contamination, the test groups G6 and G7 were treated with a single adhesive application after contamination. After composite build-up, samples were stored in water (7 d) and μTBS was determined. Data were evaluated using Wilcoxon test (p < 0.05).
Results

Control group G2 showed significantly higher μTBS than G1. The HF-contamination did not result in a significant reduction of μTBS. The μTBS of the test groups treated with OptiBond XTR (G5, G7) were significantly higher than the test groups treated with OptiBond FL (G3, G4, G6) following the same procedure.
Conclusions

HF-contamination of dentin or the adhesive layer does not significantly impair the bond strength, if the adhesive is subsequently re-applied.

Abstract

Purpose

To evaluate the influence of hydrofluoric acid (HF) contamination on the microtensile bond strength (μTBS) during dental repair procedures before and after application of different dentin adhesives (Optibond FL and Optibond XTR).
Materials and methods

Thirty-five human molars were ground down into the dentin and were randomly divided into seven groups (G1-G7; n = 5), G1 and G2 being the control groups. Only in the test groups (G3-G7) samples were subjected to HF (9,5%) contamination. Two adhesive systems, Optibond FL (G1, G3, G4, G6) and Optibond XTR (G2, G5, G7) were used. In G3-G5 the adhesive was applied before and after contamination, the test groups G6 and G7 were treated with a single adhesive application after contamination. After composite build-up, samples were stored in water (7 d) and μTBS was determined. Data were evaluated using Wilcoxon test (p < 0.05).
Results

Control group G2 showed significantly higher μTBS than G1. The HF-contamination did not result in a significant reduction of μTBS. The μTBS of the test groups treated with OptiBond XTR (G5, G7) were significantly higher than the test groups treated with OptiBond FL (G3, G4, G6) following the same procedure.
Conclusions

HF-contamination of dentin or the adhesive layer does not significantly impair the bond strength, if the adhesive is subsequently re-applied.

Statistics

Citations

Dimensions.ai Metrics

Altmetrics

Downloads

37 downloads since deposited on 10 Nov 2021
9 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Center for Dental Medicine > Clinic of Conservative and Preventive Dentistry
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Physical Sciences > Biomaterials
Physical Sciences > General Chemical Engineering
Physical Sciences > Polymers and Plastics
Uncontrolled Keywords:Polymers and Plastics, General Chemical Engineering, Biomaterials
Language:English
Date:1 December 2021
Deposited On:10 Nov 2021 14:44
Last Modified:26 Apr 2024 01:36
Publisher:Elsevier
ISSN:0143-7496
OA Status:Hybrid
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.ijadhadh.2021.102960
  • Content: Published Version
  • Language: English
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)