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Effect of calcium hydroxide on bond strength of dentin bonding systems


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Effect of calcium hydroxide on bond strength of dentin bonding systems

Article information

Restor Dent Endod. 2007;32(3):198-207
Publication date (electronic) : 2007 May 31
doi : https://doi.org/10.5395/JKACD.2007.32.3.198
No-Hoon Park, Sang-Hyuk Park, Gi-Woon Choi, Sang-Jin Park
Department of Conservative Dentistry, Division of Dentistry, Graduate of Kyung Hee University, Korea.
Corresponding Author: Sang-Jin Park. Department of Conservative Dentistry, Division of Dentistry, Graduate of Kyung Hee University, 1, Hoegi Dong, Dongdaemun Gu, Seoul, Korea, 130-702. Tel: 82-2-958-9335, psangjin@khu.ac.kr
Received 2007 March 21; Revised 2007 April 04; Accepted 2007 April 10.

Abstract

The purpose of this study was to investigate the effect of calcium hydroxide on dentin bonding strength of various dentin bonding systems as a function of time in composite resin restoration.

Dentin adhesives used in this study were Scotchbond Multipurpose, Single Bond, SE Bond and Prompt L-Pop. Flat dentin surfaces adjacent to pulp chamber were created, then Ca(OH)2 and saline were mixed and applied on dentin surface of experimental group, then IRM was used to cover the mixture on dentin surface and the specimens were stored at 36.5℃ for experiment period (7 days, 30 days). After removing IRM and Ca(OH)2, each dentin adhesives were treated on dentin surfaces.

Composite resin (Z-250, 3M) was placed with 5 mm height and was light-cured for 20 seconds. After stored in distilled water for 24 hours, each dentin-composite bonded spicemen was embedded in epoxy resin and sectioned into 1.0 × 1.0 mm2 cross section composite-dentin beams. Specimen was mounted on zig of Universal testing machine and µTBS test was performed. SEM analysis was performed to examine the fractured surfaces.

The results suggested that applying calcium hydroxide did not show significant difference in dentin bonding strength.

Keywords: Calcium hydroxide; Dentin bonding systems; Composite resin restoration; Dentin bonding strength; µTBS test; SEM analysis

References

1. Orstavik D. Antibacterial properties of endodontic materials. Int Endod J 1988. 21161–169.
2. Chong BS, Pitt Ford TR. The role of intracanal medication in root canal treatment. Int Endod J 1992. 25(2)97–106.
3. Unemori M, et al. Composite resin restoration and postoperative sensitivity: clinical follow-up in an undergraduate program. J Dent 2001. 29(1)7–13.
4. Ulusu T, et al. Comparison of the effect of insertion techniques of a resin composite on dentinal adaptation of two visible light-cured bases: direct evaluation versus a replica technique. Quintessence Int 1996. 27(1)63–68.
5. Cox CF, Suzuki S. Re-evaluating pulp protection: calcium hydroxide liners vs. cohesive hybridization. J Am Dent Assoc 1994. 125(7)823–831.
6. Suliman AA, Chan KC. Microleakage between different types of base materials. J Prosthet Dent 1992. 67(2)153–156.
7. Staehle HJ, et al. The marginal sealing of composite inlays with different cavity liners. Schweiz Monatsschr Zahnmed 1992. 102(10)1189–1194.
8. Fitzgerald M, Heys RJ. A clinical and histological evaluation of conservative pulpal therapy in human teeth. Oper Dent 1991. 16(3)101–112.
9. Papadakou M, et al. Adaptation of two different calcium hydroxide bases under a composite restoration. J Dent 1990. 18(5)276–280.
10. Peliz MI, et al. Scanning electron microscope analysis of internal adaptation of materials used for pulp protection under composite resin restorations. J Esthet Restor Dent 2005. 17(2)118–128.
11. Ersin NK, Eronat N. The comparison of a dentin adhesive with calcium hydroxide as a pulp-capping agent on the exposed pulps of human and sheep teeth. Quintessence Int 2005. 36(4)271–280.
12. Subay RK, Demirci M. Pulp tissue reactions to a dentin bonding agent as a direct capping agent. J Endod 2005. 31(3)201–204.
13. Scarano A, et al. A Direct capping with four different materials in humans: histological analysis of odontoblast activity. J Endod 2003. 29(11)729–734.
14. Cox CF, et al. Biocompatibility of surface-sealed dental materials against exposed pulps. J Prosthet Dent 1987. 57(1)1–8.
15. Foreman PC, Barnes IE. A review of calcium hydroxide. Int Endod J 1990. 23283–297.
16. Eidelman E, et al. Remineralization of carious dentin treated with calcium hydroxide. J Dent Child 1965. 32(4)218–225.
17. Kehoe JC. pH reversal following in vitro bleaching of pulpless teeth. J Endod 1987. 13(1)6–9.
18. de Oliveira LD, et al. Sealing evaluation of the cervical base in intracoronal bleaching. Dent Traumatol 2003. 19(6)309–313.
19. Lambrianidis T, et al. Effect of calcium hydroxide as a supplementary barrier in the radicular penetration of hydrogen peroxide during intracoronal bleaching in vitro. Int Endod J 2002. 35(12)985–990.
20. Andreasen JO, Kristerson L. The effect of extra-alveolar root filling with calcium hydroxide on periodontal healing after replantation of permanent incisors in monkeys. J Endod 1981. 7(8)349–354.
21. Chung HA, et al. Adhesion of glass-ionomer cement sealers to bovine dentin conditioned with intracanal medications. J Endod 2001. 27(2)85–88.
22. Windley W III, et al. The effect short-term calciun hydroxide treatment on dentin bond strength to composite resin. Dent Traumatol 2003. 19(2)79–84.
23. Shono Y, et al. Regional measurement of resin-dentin bonding as an array. J Dent Res 1999. 78(2)699–705.
24. Tay FR, Pashley DH. Aggressiveness of contemporary self-etching systems. I: Depth of penetration beyond dentin smear layers. Dent Mater 2001. 17(4)296–308.
25. Jang YI, Choi KK, Park SJ. Compatibility between two step self-etching adhesives and composites with different curing mode. J Korean Acad Conserv Dent 2006. 31(in process).
26. Tanumiharja M, et al. Microtensile bond strengths of seven dentin adhesive systems. Dent Mater 2000. 16180–187.
27. Andreasen JO, Kristenson L. Long-term calcium hydroxide as a root canal dressing may increase risk of root fracture. Dent Traumatol 2002. 18134–137.
28. Pioch T, et al. The nanoleakage phenomenon: influence of moist vs dry bonding. J Adhes Dent 2002. 423–30.
29. Swift EJ Jr. Dentin bonding: what is the state of the art? Compend Contin Educ Dent 2001. 2212 Suppl. 4–7. quiz 18.
30. Perdigao J. Dentin bonding as a function of dentin structure. Dent Clin North Am 2002. 46277–301.

Article information Continued

Copyright © 2007 Korean Academy of Conservative Dentistry
(open-access) :

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Figure 2

Figure 2

Micro-tensile bond strength of 12 experimental groups.

Figure 3

Figure 3

Micro-tensile bond strength in group of SM.

Figure 4

Figure 4

Micro-tensile bond strength in group of SB.

Figure 5

Figure 5

Micro-tensile bond strength in group of SE.

Figure 6

Figure 6

Micro-tensile bond strength in group of PL.

Figure 7

Figure 7

SEM photograph of the fractured surface of SM/C group, showing cohesive failure. The failure occurred at the bottom of the hybrid layer and there are resin tags in the dentinal tubules that fractured at the bottom of the hybrid layer.

Figure 8

Figure 8

SEM photograph of the fractured surface of SM/30 group, showing cohesive failure. The failure occurred at the bottom of the hybrid layer and there are resin tags in the dentinal tubules that fractured at the bottom of the hybrid layer.

Figure 9

Figure 9

SEM photograph of the fractured surface of SB/C group, showing mixed failure. The failure occurred both at the top of the hybrid layer and in the bottom of the hybrid layer.

Figure 10

Figure 10

SEM photograph of the fractured surface of SB/30 group, showing mixed failure. The failure occurred both at the top of the hybrid layer and in the bottom of the hybrid layer.

Figure 11

Figure 11

SEM photograph of the fractured surface of SE/C group, showing cohesive failure. The failure occurred at the bottom of the hybrid layer and exposed dentin, which was not enveloped by resin.

Figure 12

Figure 12

SEM photograph of the fractured surface of SE/30 group, showing cohesive failure. The failure occurred at the bottom of the hybrid layer and exposed dentin, which was not enveloped by resin.

Figure 13

Figure 13

SEM photograph of the fractured surface of PL/C group, showing adhesive failure. The failure occurred between the resin and the top of the hybrid layer.

Figure 14

Figure 14

SEM photograph of the fractured surface of PL/30 group, showing adhesive failure. The failure occurred between the resin and the top of the hybrid layer.

Table 1

Dentine adhesives and composite resin used in this study

Table 1

Table 2

Modes of bonding procedure of four adhesives

Table 2

Table 3

Experimental groups and code by adhesives used in this study

Table 3

Table 4

Micro-tensile bond strength of 12 experimental groups (MPa ± SD)

Table 4

*Same superscript means no statistical difference.