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Original Research

Open Access

Effect of Light Cure Methods for Intermediate Adhesive Layer on Microleakage of Sealants. An in Vitro Study

  • Tyler R Mesa1
  • Xiaoming Xu2,3
  • Zafer C Cehreli4
  • Suzanne E Fournier5
  • Courtney Tremmel Brashier6
  • Qingzhao Yu7
  • Janice A Townsend8,9,*,

1Children’s National, Medical Center, Washington, DC, USA

2Division of Biomaterials, Louisiana State University Health Sciences, Center School of Dentistry, New Orleans, LA, USA

3Biomaterials Research, Department of Comprehensive, Dentistry and Biomaterials, Louisiana State University Health Sciences Center School of Dentistry, New Orleans, LA, USA

4Department of Pediatric Dentistry, Hacettepe University School of Dentistry, Ankara, Turkey

5Department of Pediatric Dentistry, Louisiana State University Health Sciences Center, New Orleans, LA, USA

6Louisiana State University Health Sciences Center, New Orleans, LA, USA

7School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA, USA

8Division of Pediatric Dentistry at The Ohio State University, Columbus, OH USA

9Nationwide Children’s Hospital, Columbus, OH USA

DOI: 10.17796/1053-4625-43.4.7 Vol.43,Issue 4,July 2019 pp.263-268

Published: 01 July 2019

*Corresponding Author(s): Janice A Townsend E-mail: townsend.661@osu.edu

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Abstract

Background: The objective of this study was to determine the effect of an adhesive layer and its photopolymerization on the microleakage of sealants. Study design: 0.5mm-deep standardized fissurectomies were performed on extracted molars (n = 72). Teeth were randomly assigned to 3 different sealant materials (n = 24/group). Teeth were further divided to receive sealants with or without an adhesive layer. Each sealant with adhesive was also divided into two groups: adhesive was light-cured separately or light cured together with the sealant. Following thermocycling, microleakage was assessed using dye penetration and image analysis. Data was analyzed using ANOVA and Tukey’s studentized ranged HSD tests. Results: Microleakage was not affected by type of sealant material (p>0.05) but was significantly influenced by application (p<0.05). Overall, placement of sealants without adhesive displayed greater microleakage than sealants with uncured adhesive (p<0.05). Within individual sealant types, this difference was only significant for Ultraseal XT (p<0.05). Sealants bonded with and without prior light curing did not show a significant difference in levels of leakage (Tukey’s Studentized Range Test, p>0.05). Conclusion: An adhesive layer should be placed beneath sealants, but whether it should be light cured or left uncured before sealant placement varies by the sealant type.

Keywords

Light curing; Dental adhesives; Polymerization; Image analysis; Pit and fissure sealants

Cite and Share

Tyler R Mesa,Xiaoming Xu,Zafer C Cehreli,Suzanne E Fournier,Courtney Tremmel Brashier,Qingzhao Yu,Janice A Townsend. Effect of Light Cure Methods for Intermediate Adhesive Layer on Microleakage of Sealants. An in Vitro Study. Journal of Clinical Pediatric Dentistry. 2019. 43(4);263-268.

URL:

https://www.jocpd.com/articles/10.17796/1053-4625-43.4.7

References

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