The Effect of Different Pre-Treatment Methods on the Shear Bond Strength of Orthodontic Tubes: An in vitro Study

Authors: A. C. B. C. J. Fernandes, V. C. de Jesus, S. Noruziaan, O. F. G. G. Vilela, K. K. Somarin, R. França, F. H. S. L. Pinheiro

Abstract:

Objective: This in vitro study aimed to evaluate the shear bond strength (SBS) of orthodontic tubes after different enamel pre-treatments. Materials and Methods: A total of 39 crown halves were randomly divided into 3 groups (n = 13). Group I (control group) was exposed to prophy paste (PP), 37% phosphoric acid (PA), and a self-etching primer (SEP). Group II received no prophylaxis, but only PA and SEP. Group III was exposed to PP and SEP. The SBS was used to evaluate the bond strength of the orthodontic tubes one year after bonding. One-way ANOVA and Tukey’s post-hoc test were used to compare SBS values between the three groups. The statistical significance was set to 5%. Results: The difference in SBS values of groups I (36.672 ± 9.315 Mpa), II (34.242 ± 9.986 Mpa), and III (39.055 ± 5.565 Mpa) were not statistically significant (P < 0.05). Conclusion: This study suggests that chairside time can be significantly reduced with the use of PP and a SEP without compromising adhesion. Further evidence is needed by means of a split-mouth design trial.

Keywords: Shear bond strength, orthodontic tubes, self-etching primer, pumice, prophy.

References:

[1] S.L. Handelman, Z. Shey, Michael Buonocore and the Eastman Dental Center: A Historic Perspective on Sealants, Journal of Dental Research 75(1) (1996) 529-534.
[2] S. Hamdani, G. Anita, J. Sodawala, S. Gandhi, S. Ali, The effect of pre-etching with 37% orthophosphoric acid on the shear bond strength of orthodontic brackets bonded using self-etching primer-adhesive system, Indian Journal of Dental Research 27(5) (2016) 498-501.
[3] S.J. Lindauer, H. Browning, B. Shroff, F. Marshall, R.H.B. Anderson, P.C. Moon, Effect of pumice prophylaxis on the bond strength of orthodontic brackets, American Journal of Orthodontics and Dentofacial Orthopedics 111(6) (1997) 599-605.
[4] F. Miura, W. Nakagawa, A. Ishizaki, Scanning electron microscopic studies on the direct bonding system, Bull Tokyo Med Dent Univ 20 (1973) 245-60.
[5] P. Gange, The evolution of bonding in orthodontics, American Journal of Orthodontics and Dentofacial Orthopedics 147(4) (2015) S56-S63.
[6] A.H. Alzainal, A.S. Majud, A.M. Al-Ani, A.O. Mageet, Orthodontic Bonding: Review of the Literature, International Journal of Dentistry 2020 (2020) 1-10.
[7] M. Akin, Z.M. Baka, Z. Ileri, F.A. Basciftci, Can demineralized enamel surfaces be bonded safely?, Acta odontologica Scandinavica 72(4) (2014) 283-289.
[8] I. Veli, M. Akin, Z.M. Baka, T. Uysal, Effects of different pre-treatment methods on the shear bond strength of orthodontic brackets to demineralized enamel, Acta Odontologica Scandinavica 74(1) (2016) 7-13.
[9] S.E. Bishara, L. VonWald, J.F. Laffoon, J.J. Warren, Effect of a self-etch primer/adhesive on the shear bond strength of orthodontic brackets, American Journal of Orthodontics and Dentofacial Orthopedics 119(6) (2001) 621-624.
[10] R.J. Scougall Vilchis, S. Yamamoto, N. Kitai, K. Yamamoto, Shear bond strength of orthodontic brackets bonded with different self-etching adhesives, American Journal of Orthodontics and Dentofacial Orthopedics 136(3) (2009) 425-430.
[11] P.S. Fleming, A. Johal, N. Pandis, Self-etch primers and conventional acid-etch technique for orthodontic bonding: A systematic review and meta-analysis, American Journal of Orthodontics and Dentofacial Orthopedics 142(1) (2012) 83-94.
[12] S. Sharma, P. Tandon, A. Nagar, G.P. Singh, A. Singh, V.K. Chugh, A comparison of shear bond strength of orthodontic brackets bonded with four different orthodontic adhesives, Journal of Orthodontic Science 3(2) (2014) 29-33.
[13] I.R. Reynolds, A Review of Direct Orthodontic Bonding, British Journal of Orthodontics 2(3) (1975) 171-178.
[14] S. Almoammar, Influence of phototherapy on bond strength and failure modes of enamel bonded to ceramic and metallic brackets with different surface treatment regimes, Photodiagnosis and Photodynamic Therapy 26 (2019) 214-217.
[15] N. Pandis, L. Christensen, T. Eliades, Long-term Clinical Failure Rate of Molar Tubes Bonded with a Self-etching Primer, Angle Orthodontist 75(6) (2005) 1000-1002.
[16] T. Buyukyilmaz, S. Usumez, A.I. Karaman, Effect of Self-Etching Primers on Bond Strength— Are They Reliable?, Angle Orthodontist 73(1) (2003) 64-70.
[17] I. Fitzgerald, G.T. Bradley, J.A. Bosio, A.F. Hefti, D.W. Berzins, Bonding with self-etching primers--pumice or pre-etch? An in vitro study, The European Journal of Orthodontics 34(2) (2012) 257-261.
[18] F. Han, R. Liang, H. Xie, Effects of Phosphoric Acid Pre-Etching on Chemisorption between Enamel and MDP-Containing Universal Adhesives: Chemical and Morphological Characterization, and Evaluation of Its Potential, ACS Omega 6(20) (2021) 13182-13191.
[19] L.G. Abreu, S.M. Paiva, H. Pretti, E.M.B. Lages, J.B.N. Júnior, R.A.N. Ferreira, Comparative Study of the Effect of Acid Etching on Enamel Surface Roughness between Pumiced and Non-pumiced Teeth, Journal of International Oral Health: JIOH 7(9) (2015) 1-6.
[20] A.M. Shayan, A. Behroozian, A. Sadrhaghighi, A. Dolatabadi, S. Hashemzadeh, Effect of different types of acid-etching agents and adhesives on enamel discoloration during orthodontic treatment, J Dent Res Dent Clin Dent Prospects 15(1) (2021) 7-10.
[21] M. Gu, L. Lv, X. He, W. Li, L. Guo, Effect of phosphoric acid concentration used for etching on the microtensile bond strength to fluorotic teeth, Medicine (Baltimore) 97(35) (2018) e12093.