ADHESION OF ORTHODONTIC TUBES TO DENTAL ENAMEL: COMPARISON OF DIFFERENT BONDING PROTOCOLS
Palavras-chave:
Fixed appliances, Dental bonding, Orthodontic adhesives, Composite resinsResumo
Adhesion failures between orthodontic appliances and tooth enamel are common and occur more frequently in posterior teeth. An additional layer of orthodontic adhesive at the interface between the tooth and the occlusal surface of the accessory appears to be a promising maneuver, but the results are controversial. The aim of this study was to compare the shear bond strength (SBS) of orthodontic tubes bonded to tooth enamel following three different protocols. Forty-five bovine incisors were randomly divided into three groups: Group 1 – Transbond XT without reinforcement (control group); Group 2 – Transbond XT + reinforcement with Grandioso Heavy Flow flowable resin; and Group 3 – Transbond XT + reinforcement with conventional Forma resin. The specimens were subjected to a shear test using a universal testing machine with a knife blade tip and a speed of 0.5 mm/min. The shear strength was higher in Group 2 when compared to Group 1. There was no statistically significant difference when comparing Groups 1 and 3, or 2 and 3. The RUC was higher in Group 2 when compared to Group 1. Reinforcement with flowable resin increases the RUC when compared to conventional bonding.
Referências
ALMOSA, N. A. et al. Incidence of orthodontic brackets detachment during orthodontic treatment: a systematic review. Pakistan Journal of Medical Sciences, v. 34, n. 3, p. 744-750, 2018.
DUDÁS, C. et al. Clinical bracket failure rates between different bonding techniques: a systematic review and meta-analysis. European Journal of Orthodontics, v. 45, n. 2, p. 175-185, 2022.
HADROUS, R. et al. Evaluation of shear bond strength of orthodontic molar tubes bonded using hydrophilic primers: an in vitro study. International Orthodontics, v. 17, n. 3, p. 461-468, 2019.
JANISZEWSKA-OLSZOWSKA, J. et al. Effect of Orthodontic Debonding and Adhesive Removal on the Enamel – Current Knowledge and Future Perspectives – a Systematic Review. Medical Science Monitor, v. 20, p. 1991- 2001, 2014.
JUNG, M. H. et al. Survival analysis of brackets and tubes: a twelve-month assessment. The Angle Orthodontist, v. 84, n. 6, p. 1034-1040, 2014.
KHAN, H. et al. Bracket Failure in Orthodontic Patients: the incidence and the influence of different factors. Biomed Research International, v. 2022, p. 1- 6, 2022.
MILLETT, D.T. et al. Adhesives for bonded molar tubes during fixed brace treatment. The Cochrane Database of Systematic Review, v. 6, p. CD008236, 2011
MOHEBI, S; SHAFIEE, H. A.; AMELI, N. Evaluation of enamel surface roughness after orthodontic bracket debonding with atomic force microscopy. American Journal of Orthodontics and Dentofacial Orthopedics, v. 151, n. 3, p. 521-527, 2017.
OZTURK, B. et al. Influence of different tooth types on the bond strength of two orthodontic adhesive systems. The European Journal of Orthodontics, v. 30, n. 4, p. 407-412, 2008.
PANDIS, N.; POLYCHRONOPOULOU, A.; ELIADES, T. A comparative assessment of the failure rate of molar tubes bonded with a self-etching primer and conventional acid-etching. World Journal of Orthodontics, v. 7, n. 1, p. 41- 44, 2006.
PINZAN-VERCELINO, C. R. M. et al. In vitro evaluation of an alternative method to bond molar tubes. Journal of Applied Oral Science, v. 19, n. 1, p. 41-46, 2011.
PONT, H. B. et al. Loss of surface enamel after bracket debonding: an in vivo and ex vivo evaluation. American Journal of Orthodontics and Dentofacial Orthopedics, v. 138, n. 4, p. e1-387.e9, 2010.
VEIGA-JARDIM, A. F. et al. Evaluation of bond strength of molar orthodontic tubes subjected to reinforcement with flowable and bonding resins. Journal of Orofacial Orthopedics / Fortschritte Der Kieferorthopädie, v. 81, n. 5, p. 350-359, 2020.
