Journal List > J Korean Acad Prosthodont > v.47(2) > 1034574

Song, Kim, Ro, and Ryu: Effect of post-bleaching time intervals on resin in dentin bonding strength

Abstract

Statement of problem

There is a reduction of dentin bonding strength when the bonding procedure is carried out immediately after bleaching with peroxides.

Purpose

The aim of this study is to evaluate a proper time interval for in-office bleaching technique using 35% hydrogen peroxide.

Material and methods

Fifty extracted non-caries human third molars were used in this study. Buccal enamel of each tooth was removed and polished by 600 grits silicone carbide paper. They were randomly divided into five groups and bleached 35% hydrogen peroxide except control group. All groups were bonded with Single Bond/Z 350 after each time intervals; Group-A: control, no bleaching treatment. Group-B: resin bonding immediately after bleaching. Group-C: resin bonding 1day after bleaching. Group-D: resin bonding 2 days after bleaching. Group-E: resin bonding 7days after bleaching. Shear bond strengths were measured with a cross-head speed of 1.0 mm/min using an Instron machine. The data of results were statistically analyzed by analysis of variance (ANOVA) and Tukey multiple comparison test. (P = .05)

Results

There were significant decreases in mean shear strength in immediately bonding group after bleaching. The reduction of bond strengths was 78% compared with the group of no bleaching treatment. Group C showed the recovery of 51%, and Group D showed recovery of 63%. Both of them have no statistical difference with non-bleaching group. Group E showed no statistical difference with no bleaching treatment group.

Conclusion

Dentin bonding strength is significantly reduced when bonding is performed immediately after bleaching for in-office bleaching regimens using 35% hydrogen peroxide, and increases as time goes by. One week of elapsed time between bleaching and resin bonding significantly increases bonding strengths for the in-office bleaching technique.

REFERENCES

1.Camargo SE., Valera MC., Camargo CH., Gasparoto Mancini MN., Menezes MM. Penetration of 38% hydrogen peroxide into the pulp chamber in bovine and human teeth submitted to office bleach technique. J Endod. 2007. 33:1074–7.
crossref
2.Haywood VB. History, safety, and effectiveness of current bleaching techniques and applications of the nightguard vital bleaching technique. Quintessence Int. 1992. 23:471–88.
3.Sasaki RT., Barbosa MC., Flo ′rio FM., Basting RT. Enamel microhardness and shear bond strength after treatment with an 18% carbamide peroxide bleaching varnish. Am J Dent. 2007. 20:324–8.
4.Basting RT., Rodrigues AL Jr., Serra MC. The effects of seven carbamide peroxide bleaching agents on enamel microhardness over time. J Am Dent Assoc. 2003. 134:1335–42.
crossref
5.Lewinstein I., Fuhrer N., Churaru N., Cardash H. Effect of different peroxide bleaching regimens and subsequent fluoridation on the hardness of human enamel and dentin. J Prosthet Dent. 2004. 92:337–42.
crossref
6.Taher NM. The effect of bleaching agents on the surface hardness of tooth colored restorative materials. J Contemp Dent Pract. 2005. 15(6):18–26.
crossref
7.Benetti AR., Valera MC., Mancini MN., Miranda CB., Balducci I. In vitro penetration of bleaching agents into the pulp chamber. Int Endod J. 2004. 37:120–4.
8.Heller D., Skriber J., Lin LM. Effect of intracoronal bleaching on external cervical root resorption. J Endod. 1992. 18:145–8.
crossref
9.Amato M., Scaravilli MS., Farella M., Riccitiello F. Bleaching teeth treated endodontically: long-term evaluation of a case series. J Endod. 2006. 32:376–8.
crossref
10.Shinohara MS., Peris AR., Pimenta LA., Ambrosano GM. Shear bond strength evaluation of composite resin on enamel and dentin after nonvital bleaching. J Esthet Restor Dent. 2005. 17:22–9.
crossref
11.Titley KC., Torneck CD., Smith DC., Adibfar A. Adhesion of composite resin to bleached and unbleached bovine enamel. J Dent Res. 1988. 67:1523–8.
crossref
12.Titley KC., Torneck CD., Ruse ND. The effect of carbamide-peroxide gel on the shear bond strength of a micro-fil resin to bovine enamel. J Dent Res. 1992. 71:20–4.
crossref
13.Torneck CD., Titley KC., Smith DC., Adibfar A. The influence of time of hydrogen peroxide exposure on the adhesion of composite resin to bleached bovine enamel. J Endod. 1990. 16:123–8.
crossref
14.McGuckin RS., Thurmond BA., Osovitz S. Enamel shear bond strengths after vital bleaching. Am J Dent. 1992. 5:216–22.
15.Lai SC., Tay FR., Cheung GS., Mak YF., Carvalho RM., Wei SH., Toledano M., Osorio R., Pashley DH. Reversal of compromised bonding in bleached enamel. J Dent Res. 2002. 81:477–81.
crossref
16.Vongphan N., Senawongse P., Somsiri W., Harnirattisai C. Effects of sodium ascorbate on microtensile bond strength of total-etching adhesive system to NaOCl treated dentine. J Dent 2005. 2005. 33:689–95.
crossref
17.Muraguchi K., Shigenobu S., Suzuki S., Tanaka T. Improvement of bonding to bleached bovine tooth surfaces by ascorbic acid treatment. Dent Mater J. 2007. 26:875–81.
crossref
18.Bulut H., Turkun M., Kaya AD. Effect of an antioxidizing agent on the shear bond strength of brackets bonded to bleached human enamel. Am J Orthod Dentofacial Orthop. 2006. 129:266–72.
crossref
19.Dishman MV., Covey DA., Baughan LW. The effects of peroxide bleaching on composite to enamel bond strength. Dent Mater. 1994. 10:33–6.
crossref
20.Spyrides GM., Perdiga ̃o J., Pagani C., Arau ′jo MA., Spyrides SM. Effect of whitening agents on dentin bonding. J Esthet Dent. 2000. 12:264–70.
crossref
21.Cavalli V., Reis AF., Giannini M., Ambrosano GM. The effect of elapsed time following bleaching on enamel bond strength of resin composite. Oper Dent. 2001. 26:597–602.
22.Sundfeld RH., Briso AL., De Sa ′PM., Sundfeld ML., Bedran-Russo AK. Effect of time interval between bleaching and bonding on tag formation. Bull Tokyo Dent Coll. 2005. 46:1–6.
crossref
23.Sulieman M., MacDonald E., Rees JS., Newcombe RG., Addy M. Tooth bleaching by different concentrations of carbamide peroxide and hydrogen peroxide whitening strips: an in vitro study J Esthet Restor Dent. 2006. 18:93–101.
24.Al-Salehi SK., Wood DJ., Hatton PV. The effect of 24h nonstop hydrogen peroxide concentration on bovine enamel and dentine mineral content and microhardness. J Dent. 2007. 35:845–50.
crossref
25.Elkhatib H., Nakajima M., Hiraishi N., Kitasako Y., Tagami J., Nomura S. Surface pH and bond strength of a self-etching primer/adhesive system to intracoronal dentin after application of hydrogen peroxide bleach with sodium perborate. Oper Dent. 2003. 28:591–7.
26.Leonard RH Jr., Garland GE., Eagle JC., Caplan DJ. Safety issues when using a 16% carbamide peroxide whitening solution. J Esthet Restor Dent. 2002. 14:358–67.
crossref
27.Jiang T., Ma X., Wang Y., Zhu Z., Tong H., Hu J. Effects of hydrogen peroxide on human dentin structure J Dent Res. 2007. 86:1040–5.
28.Bishara SE., Oonsombat C., Soliman MM., Ajlouni R., Laffoon JF. The effect of tooth bleaching on the shear bond strength of orthodontic brackets. Am J Orthod Dentofacial Orthop. 2005. 128:755–60.
crossref
29.Toko T., Hisamitsu H. Shear bond strength of composite resin to unbleached and bleached human dentine. Asian J Aesthet Dent. 1993. 1:33–6.
30.Basting RT., Rodrigues JA., Serra MC., Pimenta LA. Shear bond strength of enamel treated with seven carbamide peroxide bleaching agents. J Esthet Restor Dent. 2004. 16:250–60.
crossref
31.Unlu N., Cobankara FK., Ozer F. Effect of elapsed time following bleaching on the shear bond strength of composite resin to enamel. J Biomed Mater Res B Appl Biomater. 2008. 84:363–8.
crossref
32.Gegauff AG., Rosenstiel SF., Langhout KJ., Johnston WM. Evaluating tooth color change from carbamide peroxide gel. J Am Dent Assoc. 1993. 124:65–72.
crossref

Fig. 1.
Specimen after composite resin bonding (Resin block was carefully bonded to dentin only).
jkap-47-174f1.tif
Fig. 2.
Specimen in Instron machine (Bonding failure were conformed to measure shear bond strength between resin block and dentin).
jkap-47-174f2.tif
Fig. 3.
Individual and mean value of shear bond strength (GA-Group A, GB-Group, GC-Group C, GD-Group D, GE-Group E).
jkap-47-174f3.tif
Table I.
Materials used in this study
  Name Manufacture
Bleaching agent Power Bleaching Gel ORATECH, USA
Dentin bonding agent Single Bond 3M ESPE, USA
Composite resin Z350 3M ESPE, USA
Self-curing resin SNAP PARKELL, USA
Pumice Zircate Prophypaste DENTSPLY, USA
Table II.
Mean value and Standard deviation of shear bond strength
Group shear bond strength (MPa)
A - control (no bleaching) 20.11 ± 3.54
B - immediate after bleaching 6.36 ± 1.42
C - 1 day after bleaching 13.46 ± 3.43
D - 2 days after bleaching 15.00 ± 3.16
E - 7 days after bleaching 19.22 ± 3.40
Table III.
Results of ANOVA for shear bond strengths
  Sum of squares df Mean square F value P value
Between groups 1207.972 4 301.993 31.544 .000 ()
Within groups 430.813 45 9.574    
Total 1638.785 49      

: significantly different between groups at 95% confidence level.

Table IV.
Results of Tukey Multiple comparisons for shear bond strengths
Group Comparison n Mean Difference Standard error P value
A B 13.7500 1.3837 0.000 ()
C 6.6500 1.3837 0.000 ()
D 5.1100 1.3837 0.005 ()
E 0.8900 1.3837 0.967
B A -13.7500 1.3837 0.000 ()
C -7.1000 1.3837 0.000 ()
D -8.6400 1.3837 0.000 ()
E -12.8600 1.3837 0.000 ()
C A -6.6500 1.3837 0.000 ()
B 7.1000 1.3837 0.000 ()
D -1.5400 1.3837 0.799
E -5.7600 1.3837 0.001 ()
D A -5.1100 1.3837 0.005 ()
B 8.6400 1.3837 0.000 ()
C 1.5400 1.3837 0.799
E -4.2200 1.3837 0.030()
E A - .8900 1.3837 0.967
B 12.8600 1.3837 0.000 ()
C 5.7600 1.3837 0.001 ()
D 4.2200 1.3837 0.030 ()

: significantly different between groups at 95% confidence level.

TOOLS
Similar articles