The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 19 , ISSUE 2 ( February, 2018 ) > List of Articles

ORIGINAL RESEARCH

Microtensile Bond Strength of Polyacid-modified Composite Resin to Irradiated Primary Molars

Yucel Yilmaz, Sultan Keles, Orhan Sezen

Citation Information : Yilmaz Y, Keles S, Sezen O. Microtensile Bond Strength of Polyacid-modified Composite Resin to Irradiated Primary Molars. J Contemp Dent Pract 2018; 19 (2):189-195.

DOI: 10.5005/jp-journals-10024-2235

License: CC BY 3.0

Published Online: 01-02-2018

Copyright Statement:  Copyright © 2018; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

This study evaluated the influence of various doses of radiotherapy on the microtensile bond strength (μTBS) of compomer resin to dentin and enamel in primary molars.

Materials and methods

Thirty-five intact primary molars were collected and divided into seven groups. Teeth were irradiated with doses from 10 to 60 Gy, except for the control group. Compomer restorations were performed, and enamel—compomer resin beams and dentin—compomer resin beams were tested at a crosshead speed of 1 mm/min.

Results

No statistically significant difference was found between the irradiated tooth enamel and the control group (F = 1.1468; p = 0.194). However, statistically significant differences were evident among the dentin groups (F = 11.050; p < 0.001).

Conclusion

Radiation may not cause a significant difference in the μTBS of compomer resin to primary tooth enamel, but appears to dose dependently decrease its bond strength to primary tooth dentin.

Clinical significance

Radiotherapy may affect the success rate of compomer fillings in primary teeth, especially in deeper cavities with exposed dentin.

How to cite this article

Keles S, Yilmaz Y, Sezen O. Microtensile Bond Strength of Polyacid-modified Composite Resin to Irradiated Primary Molars. J Contemp Dent Pract 2018;19(2):189-195.


  1. The half field technique of radiation therapy for the cancers of head and neck. Int J Radiat Oncol Biol Phys 1979 Oct;5(10):1899-1901.
  2. Dosimetry study of split beam technique using megavoltage beams and its clinical implications-I megavoltage beams and its clinical implications—I: 60Co beam, head and neck tumors. Int J Radiat Oncol Biol Phys 1979 Apr;5(4):565-571.
  3. The investigation and rectification of field placement errors in the delivery of complex head and neck fields. Int J Radiat Oncol Biol Phys 1993 Apr;26(1):155-161.
  4. Long-term effects in children treated with radiotherapy for head and neck rhabdomyosarcoma. Int J Radiat Oncol Biol Phys 2000 Dec;48(5):1489-1495.
  5. Effect of gamma radiation on bonding to human enamel and dentin. Support Care Cancer 2012 Nov;20(11):2873-2878.
  6. Effect of gamma irradiation on ultimate tensile strength of enamel and dentin. J Dent Res 2010 Feb;89(2):159-164.
  7. Bond strengths of two conventional glass-ionomer cements to irradiated and non-irradiated dentin. Dent Mater J 2008 Sep;27(5):695-701.
  8. Polyacid-modified composite resins (“compomers”) and their use in clinical dentistry. Dent Mater 2007 May;23(5):615-622.
  9. Structure and composition of enamel. Oper Dent 1992;Suppl 5:10-17.
  10. The “prismless” outer layer of deciduous and permanent enamel. Arch Oral Biol 1966 Jan;11(1):41-48.
  11. [Histotomography studies of direct radiogenic dental enamel changes]. Mund Kiefer Gesichtschir 1998 Mar;2(2):85-90.
  12. Enhanced permeability of acid-etched or ground dental enamel. J Prosthet Dent 1997 Jun;77(6):578-582.
  13. Effect of etching times and mechanical pretreatment on the enamel of primary teeth: an SEM study. Am J Dent 1991 Jun;4(3):115-118.
  14. Using ultrasound transmission velocity to analyse the mechanical properties of teeth after in vitro, in situ, and in vivo irradiation. Clin Oral Investig 2000 Sep;4(3):168-172.
  15. Microstructure and mineral composition of dental enamel of permanent and deciduous teeth. Microsc Res Tech 2010 May;73(5):572-577.
  16. The number of prism bases on the inner and outer surface of the enamel mantle of human teeth. J Dent Res 1964;43:57-63.
  17. Principles of demineralization: modern strategies for the isolation of organic frameworks. Part II. Decalcification. Micron 2009 Feb;40(2):169-193.
  18. The radiobiological basis for tissue reactions in the oral cavity following therapeutic x-irradiation. A review. Arch Otolaryngol 1982 Jan;108(1):21-24.
  19. Radial packing, order, and disorder in collagen fibrils. Biophys J 1995 May;68(5):1661-1670.
  20. ; Pashley, D. Hybridization of Dental Hard Tissues. Tokyo: Quintessence Publishing Co. Ltd; 1998.
  21. The effect of gamma-irradiation on collagen molecules, isolated alpha-chains, and crosslinked native fibers. J Biomed Mater Res 1990 May;24(5):581-589.
  22. Collagen absorption bands in heated and rehydrated dentine. Spectrochim Acta A Mol Biomol Spectrosc 2005 Dec;62(4-5):1045-1049.
  23. ; Worobiec, A.; Zaverbna, L.; Van Grieken, R. Molecular Spectroscopy Study of human tooth tissues affected by high dose of external ionizing radiation. In: Nenoi M, editor. Current topics in ionizing radiation research. New Delhi: Open Access Publisher; 2012.
  24. Long-lived radicals in irradiated apatites of biological interest: an E.S.R. study of apatite samples treated with 13CO2. Int J Radiat Biol Relat Stud Phys Chem Med 1985 Oct;48(4):621-633.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.