Your browser does not support the NLM PubReader view.

Go to this page to see a list of supporting browsers.

The effect of cyanate methacrylate on the shear bond strengths to dentin

Article information

Restor Dent Endod. 2007;32(3):236-247
Publication date (electronic) : 2007 May 31
doi : https://doi.org/10.5395/JKACD.2007.32.3.236
Hyang-Kyung Kim, Kyung-Kyu Choi, 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 24; Accepted 2007 April 30.

Abstract

The purpose of this study was to evaluate the effects of cyanate methacylate on the shear bond strengths to bovine dentin surfaces as a dentin primers.

Seven experimental adhesives were made with different mass fraction of Isocyanatoetylmethacrylate (IEM), 40wt% HEMA (Wako Pure Chemical Industries Osaka, Japan), 0.6% camphoroquinone, 0.4% amine and ethanol as balance. dentin bonding agents (0, 2, 4, 6, 8, 10, 12%) were made and applied on the surface of bovine dentin specimens of 7 experimental groups.

Shear bond strengths were measured using a universal testing machine (Instro 4466).

To identify the ratio and modes of cohesive failures, microscopic examinationn was performed. The ultra-structure of resin tags were observed under scanning electron microscope.

The results were as follows ;

1) A higher shear bond strengths (33.62 MPa) in group 8% of Cyanate methacrylate to dentin were found, but there were no statistically significancy between Groups (p > 0.05).

2) The higher ratio of cohesive failures mode in group 2, 6, an 10% could be seen than that in any other groups.

3) A shorter resin tags were observed in all experimental groups.

This could be resulted that the preventing from the cyanate methacrylate penetrate into dentin owing to reacting it with dentin collagen.

Therefore the resin tags were shorter in lengths.

Whether the higher bonding strengths of dentin bonding agents can be affected was not been assured with statistic results.

The results indicated that the relation between tensile strengths of the dentin adhesives to bovine dentin and resin tags formed into the dentin could not affected.

The main reason of increasing the shear bond strength to bovine dentin in experimental groups could not be assured.

Keywords: Dentin primer; Isocyanate methacrylate; Shear bond strength; Resin tag; Cohesive failures; Collagen

References

1. Buonocore MG. A simple method of increasing the adhesion of acrylic filling materials to enamel surfaces. J Dent Res 1955. 34849–853.
2. Bowen RL, Cobb EN, Rapson JE. Adhesive bonding of various materials to hard tooth tissues: improvement in bond strength to dentin. J Dent Res 1982. 611070–1076.
3. Hulmes DJ, Wess TJ, Prockop DJ, Fratzl P. Radial packing, order, and disorder in collagen fibrils. Biophys J 1995. 681661–1670.
4. Nakabayashi N, Pashley DH. Hybridization of dental hard tissues 1998. Quintessence Publishing Co.; 1–107.
5. Van Meerbeek B, Perdigao J, Lambrechts P, Vanherle G. The clinicabonding to dentin with ferrous chloride primers and tri-n-butyl borane l performance of adhesives. J Dent 1998. 261–20.
6. Taira Y, Matsumura H, Yoshida K, Tanaka T, Atsuta M. Adhesive-initiated luting agents. J Dent Res 1996. 751859–1864.
7. Sensi LG, Lopes GC, Monterio S Jr, Baratieri LN, Vieira LC. Dentin bond strength of self-etching primers/adhesives. Oper Dent 2005. 3063–68.
8. Watanabe I, Nakabayashi N, Pashley DH. Bonding to ground dentin by a phenyl-p self-etching primer. J Dent Res 1994. 731212–1220.
9. Taira Y, Matsumura H, Yoshida K, Tanaka T, Atsuta M. Adhesive bonding to dentin with ferrous chloride primers and tri-n-butylborane-initiated luting agents. J Dent Res 1996. 751859–1864.
10. Taira Y, Matsumura H, Atsuta M. Use of 2-isocyanatoethyl methacrylate and iron(II) perchlorate for bonding tri-n-butylborane-initiated luting agents to dentin. Eur J Oral Sci 1998. 106887–891.
11. Taira Y, Matsumura H, Yoshida K, Kamada K, Tanaka T, Atsuta M. Metal chloride primers for bonding dentine with tri-n-butyl borane-initi-ated luting agents. J Dent 1998. 26603–608.
12. Munksgaard EC, Inc M, Asmussen E. Dentin-polymer bond promoted by Gluma and various resins. J Dent Res 1985. 641409–1411.
13. Nakabayashi N, Nakamura M, Yasuda N. Hybrid layer as a dentin bonding mechanism. J Esthet Dent 1991. 3133–138.
14. De Munck J, Vargas M, Iracki J, Van Landuyt K, Poitevin A, Lambrechts P, Van Meerbeek B. One-day bonding effectiveness of new self-etch adhesives to bur-cut enamel and dentin. Oper Dent 2005. 30(1)39–49.
15. Chappelow CC, Power MD, Bowels CQ, Miller RG, Pinzino CS, Eick JD. Novel priming and crosslinking systems for use with isocyanato-methacrylate dental adhesives. Dent Mater 2000. 16396–405.
16. Antonucci JM, Brauer GM, Termini DJ. Isocyanato urethane methacrylates derived from hydroxyethyl methacrylate. J Dent Res 1980. 5935–43.
17. Stackhouse JA Jr, Kristol DS, Von Hagen S, Rao G. Effect of substrate condition and substituted phenols and methacrylates on toluene diisocyanate/dentin bond strengths. J Biomed Mater Res 1989. 2381–90.
18. Chappelow CC, Byerley TJ, Pinzino CS, Millich F, Eick JD. Design and development of isocyanatoacrylates as dental adhesives. J Dent Res 1996. 75761–767.
19. Lee CH, Brauer GM. Oligomers with pendant isocyanate groups as adhesives for dentin and other tissues. J Dent Res 1989. 68484–488.
20. Brauer GM, Lee CH. Oligomers with pendant isocyanate groups as tissue adhesives : II Adhesion to bone and other tissues. J Biomed Mater Res 1989. 23753–763.
21. Asmussen E, Munksgaard EC. Bonding of restorative resins to dentin by means of methacryloylchloride and methacryloyl-R-isocyanate. Scand J Dent Res 1983. 91153–155.
22. Vanherle Guido, Smith Dennis C. Posterior composite resin dental restorative materials 1985. Amsterdam: Peter Szulc pulblishing co;
23. Byerley TJ, Chappelow CC, Chappell RP, Millich F, Eick JD. Isocyanatoacrylate, A new class of dental adhesives. J Dent Res 1991. 70363–370.
24. Nishida K, Yamauchi J, Wada T, Hosoda H. Development of a new bonding system. J Dent Res 1993. 72137. (IADR Abstracts) No. 267.
25. Ferrari M, Davidson CL. Sealing perfomance of Scotchbond Multi-purpose-Z100 in Class II restorations. Am J Dent 1996. 145–149.
26. Tay FR, Gwinnett AJ, Pang KM, Wei SHY. Micromorphological relationship of the resin-dentin interface following a total etch technique in vivo using a dentinal bonding system. Quintessence Int 1995. 2663–70.
27. Tay FR, Gwinnett AJ, Wei SHY. The overwet Phenomenon : An optical, micro-morphological study of surface moisture in the acid-conditioned, resin-dentin interface. Am J Dent 1996. 943–48.
28. Tay FR, Gwinnett AJ, Wei SHY. The overwet Phenomenon : An transmission electronical micro-morphological study of surface moisture in the acid-conditioned, resin-dentin interface. Am J Dent 1996. 9161–166.
29. Swift EJ Jr, Triolo PT. Bond strength of Scotchbond Multipurpose to moist dentin and enamel. Am J Dent 1992. 5318–320.
30. Ferrari M, Davidson CL. In vivo resin dentin interdiffusion and tag formation with lateral branches of two adhesive systems. J Prosthet Dent 1996. 76250–253.
31. Pashley DH, Livingston MJ, Greenhill JD. Regionl resistances to fluid flow in human dentin in vitro. Arch Oral Biol 1978. 23807–810.
32. Holtan JR, Nystrom GP, Phelps RA, Anderson TB, Becker WS. Influence of different etchants and etching times on shear bond strength. Oper Dent 1995. 2094–99.
33. Nikaido T, Burrow MF, Tagami J, Takatsu T. Effect of pulpal pressure on adhesion of resin composite to dentin; Bovine serum versus saline. Quintessence Int 1995. 26221–226.
34. Reis A, Grandi V, Carlotto L, Borotoli G, Patzlaff R, Rodriguues Accorinte Mde L, Dourado Logguercio A. Effect of smear layer thickness and acidity of self-etching solution on early and long-term bonding strength to dentin. J Dent 2005. 33549–559.
35. Kenshima S, Resi A, Uceda-Gomez N, Tancredo Lde, Filho LE, Nogueira FN, Loguercio AD. Effect of smear layer thickness and pH of self-etching adhesives on the bond strength and gap formation to dentin. J Adhes Dent 2005. 7117–126.
36. Tani C, Finger WJ. Effect of smear layer thickness on bond strength medicated by three all-in-one self-etching priming adhesives. J Adhes Dent 2002. 4283–289.
37. Tay FR, Carvalho R, Sano H, Pashley DH. Effect of smear layers on the bonding of a self-etching primer to dentin. J Adhes Dent 2000. 299–116.
38. Sano H, Takatsu T, Giucchi B, Russel CM, Pashley DH. Tensile properties of resin-infiltrated deminerized human dentin. J Dent Res 1995. 741093–1102.
39. Sano H, Takatsu T. Giucleakage with the hybrid layer. Oper Dent 1995. 2018–25.
40. Burrow MF, Tagami J, Hosoda H. The long term durability of bond strengtrhs to dentin. Bull Tokyo Med Dent Univ 1993. 40173–191.
41. Eliades GC, Caputo AA, Vougiouklakis GJ. Composition, wetting, properties and bond strength with dentin of 6 new dentin adhesives. Dent Mater 1985. 1170–176.
42. Gwinnett AJ. Quantitative contribution of resin infiltration/hybridization to dentin bonding. Am J Dent 1993. 67–9.

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 1

Figure 1

Shear bond strengths between seven experimental groups.

Figure 2

Figure 2

Result of linear regression analysis in seven experimental groups in shear bond strengths.

Figure 3

Figure 3

Cohesive fracture ratio of seven experimental groups.

Figure 4

Figure 4

Scanning electron micrograph of resin tags : (a) group 0, (b) group 2, (c) group 4, (d) group 6, (e) group 8, (f) group 10, (g) group 12, × 800 ; Great bundle of resin tags are shown in group 0 to group 6, which are similar patterns but resin infiltration is limited in group 10 and 12.

Figure 5

Figure 5

Scanning electron micrograph showing the resin tags, × 2,000 (a) group 0; a great number of resin tags are intangled and cross-linked each other (b) group 12; resin tags are blunt and shortened. some of canaliculi are shown between tags.

Figure 6

Figure 6

Scanning electron micrograph showing the hybrid layers in group 0% and 12%. × 3,000.

Table 1

Materials and chemical characteristics of experimental bonding agents used in this study

Table 1

Table 2

Experiment groups by dentin bonding agents used in this study (unit : weight %)

Table 2

Table 3

Shear bond strengths (kPa) and cohesive failure modes in seven experimental groups

Table 3

※ Duncan's Group means that there is no statistical differences between groups marked with same letter.