Article: An In Vitro Comparative Study of Shear Bond Strength of Composite Resin to Bleached Enamel using Synthetic and Herbal Antioxidants

Background: The bond strength to bleached enamel is reduced, if adhesive restorations are carried out immediately. So the purpose of this in vitro study was an attempt to regain the lost bond strength, for which, the comparison of shear bond strength of composite resin to bleached enamel was carried out using various antioxidants: 10% Sodium ascorbate, Rosemary extracts, Pedicularis extracts.

Materials And Methods: Fifty human extracted single rooted teeth were collected. They were decoronated and coronal portions were embedded in self cure acrylic resin with their buccal surfaces facing upwards. The samples were randomly divided into positive, negative control groups and three experimental groups (n = 10). In positive control group, specimens were not bleached, before bonding procedure. In negative control group, bleaching was done with 10% carbamide peroxide and bonding was carried out immediately. In experimental groups, following antioxidants were used after bleaching: Group A: 10% Sodium ascorbate, Group B: Rosemary extracts, Group C: Pedicularis extracts. Then the bonding procedures were carried out in all the groups and were subjected for shear bond strength analysis.

Results: Results clearly showed that groups A and B were effective in reversal of bond strength immediately.

Conclusion: 10% sodium ascorbate solution and rosemary extracts were effective in reversal of shear bond strength immediately after bleaching.

Citing Articles

Effect of herbal antioxidants on the shear bond strength of composite resin to bleached enamel at different time intervals.

Kamat S, Malgundkar N, Gupta D, Kamat M J Conserv Dent Endod. 2024; 27(3):321-325.

PMID: 38634032 PMC: 11019807. DOI: 10.4103/JCDE.JCDE_41_24.

Comparative evaluation of 6% cranberry, 10% green tea, 50% aloe vera and 10% sodium ascorbate on reversing the immediate bond strength of bleached enamel: study.

Rahman H, Ansari M, Khangwal M, Solanki R, Mansoori S J Oral Biol Craniofac Res. 2021; 11(2):107-112.

PMID: 33532195 PMC: 7829262. DOI: 10.1016/j.jobcr.2020.12.007.

Comparative Evaluation of Two Antioxidants on Reversing the Immediate Bond Strength of Bleached Enamel: In Vitro Study.

Zhang H, Shao S, Du A, Wang Y, Cheng B, Zhang Z Med Sci Monit. 2020; 26:e920481.

PMID: 32086431 PMC: 7051100. DOI: 10.12659/MSM.920481.

Protocols for sodium ascorbate application on intracoronary dentin bleached with high-concentrated agent.

Cortez T, Ziotti I, Scatolin R, Corona S, Souza-Gabriel A J Conserv Dent. 2018; 21(1):26-31.

PMID: 29628643 PMC: 5852931. DOI: 10.4103/JCD.JCD_80_17.

Comparative evaluation of superoxide dismutase, alpha-tocopherol, and 10% sodium ascorbate on reversal of shear bond strength of bleached enamel: An in vitro study.

Kavitha M, Selvaraj S, Khetarpal A, Raj A, Pasupathy S, Shekar S Eur J Dent. 2016; 10(1):109-115.

PMID: 27011749 PMC: 4784140. DOI: 10.4103/1305-7456.175693.

References

1.

Ballabh B, Chaurasia O . Traditional medicinal plants of cold desert Ladakh--used in treatment of cold, cough and fever. J Ethnopharmacol. 2007; 112(2):341-9. DOI: 10.1016/j.jep.2007.03.020. View

2.

Titley K, TORNECK C, Ruse N . The effect of carbamide-peroxide gel on the shear bond strength of a microfil resin to bovine enamel. J Dent Res. 1992; 71(1):20-4. DOI: 10.1177/00220345920710010301. View

3.

Miles P, Pontier J, Bahiraei D, Close J . The effect of carbamide peroxide bleach on the tensile bond strength of ceramic brackets: an in vitro study. Am J Orthod Dentofacial Orthop. 1994; 106(4):371-5. DOI: 10.1016/S0889-5406(94)70058-3. View

4.

Wang P, Kang J, Zheng R, Yang Z, Lu J, Gao J . Scavenging effects of phenylpropanoid glycosides from Pedicularis on superoxide anion and hydroxyl radical by the spin trapping method(95)02255-4. Biochem Pharmacol. 1996; 51(5):687-91. DOI: 10.1016/s0006-2952(95)02255-4. View

5.

Garcia-Godoy F, Dodge W, Donohue M, OQuinn J . Composite resin bond strength after enamel bleaching. Oper Dent. 1993; 18(4):144-7. View

6.

Sebranek J, Sewalt V, Robbins K, Houser T . Comparison of a natural rosemary extract and BHA/BHT for relative antioxidant effectiveness in pork sausage. Meat Sci. 2011; 69(2):289-96. DOI: 10.1016/j.meatsci.2004.07.010. View

7.

Stokes A, Hood J, Dhariwal D, Patel K . Effect of peroxide bleaches on resin-enamel bonds. Quintessence Int. 1992; 23(11):769-71. View

8.

Bulut H, Kaya A, Turkun M . Tensile bond strength of brackets after antioxidant treatment on bleached teeth. Eur J Orthod. 2005; 27(5):466-71. DOI: 10.1093/ejo/cji044. View

9.

Liu Z, Jia Z . Phenylpropanoid and iridoid glycosides from Pedicularis striata. Phytochemistry. 1991; 30(4):1341-4. DOI: 10.1016/s0031-9422(00)95221-x. View

10.

Sung E, Chan S, Mito R, Caputo A . Effect of carbamide peroxide bleaching on the shear bond strength of composite to dental bonding agent enhanced enamel. J Prosthet Dent. 1999; 82(5):595-9. DOI: 10.1016/s0022-3913(99)70060-0. View

11.

Turkun M, Kaya A . Effect of 10% sodium ascorbate on the shear bond strength of composite resin to bleached bovine enamel. J Oral Rehabil. 2004; 31(12):1184-91. DOI: 10.1111/j.1365-2842.2004.01369.x. View

12.

Barghi N, Godwin J . Reducing the adverse effect of bleaching on composite-enamel bond. J Esthet Dent. 1994; 6(4):157-61. DOI: 10.1111/j.1708-8240.1994.tb00852.x. View

An In Vitro Comparative Study of Shear Bond Strength of Composite Resin to Bleached Enamel Using Synthetic and Herbal Antioxidants