Accessibility / Report Error

Shear bond strength of nanofilled flowable resins used for indirect bracket bonding

Abstract

AIM: To evaluate the bond strength of brackets fixed with different materials (two light-cured nanofilled resins - Transbond Supreme LV and Flow Tain LV, a light-cured resin - Transbond XT (control) and two chemically cured resins for indirect bonding - Sondhi Rapid- Set and Custom I.Q.) using the indirect bonding technique after 10 min and 24 h, and evaluate the type of failure. METHODS: One hundred premolars were selected and randomly divided into groups (n=10) according to the material and fixation period. The brackets were bonded through the indirect technique following the manufacturer's instructions and stored in deionized water at 37°C for 10 min or 24 h. After, the specimens were submitted to a shear bond strength (SBS) test (Instron) at 0.5 mm/min and evaluated for adhesive remnant index (ARI). The data were submitted to ANOVA and Tukey's test (p<0.05) and the ARI scores were submitted to the chi-square test. RESULTS: It could be observed a significant difference among the materials (Flow Tain LV = Transbond Supreme LV = Transbond XT> Sondhi Rapid-Set > Custom I.Q.). There was no significant difference in resistance values between 10 min and 24 h, regardless of the materials. Most groups showed adhesive remaining adhered to the enamel (scores 2 and 3) without statistically significant difference (p>0.05). CONCLUSIONS: It was concluded that the light-cured nanofilled materials used in indirect bonding showed greater resistance than the chemically cured materials. The period of fixation had no influence on the resistance for different materials.

orthodontics; indirect bonding; orthodontic brackets


  • 1
    Sondhi A. Efficient and effective indirect bonding. Am J Orthod Dentofacial Orthop. 1999; 115: 352-9.
  • 2
    Silverman E, Cohen M, Gianelly AA, Dietz VS. A universal direct bonding system for both metal and plastic brackets. Am J Orthod. 1972; 62: 236-44.
  • 3
    Thomas RG. Indirect bonding: simplicity in action. J Clin Orthod. 1979; 13: 93-105.
  • 4
    Cinader DK, James DS. Transbond TM Supreme LV Low Viscosity Light Cure Adhesive: Suitable for Indirect Bonding. Orthodontic Perspectives. Exploring Treatment Options. 2009; 16: 1.
  • 5
    Cortesi R, Molinari L. A simple and efficient procedure for indirect bonding. Prog Orthod. 2010; 11: 180-4.
  • 6
    Hedge T, Dattada H, Jaiswal RK. An avant-garde indirect bonding technique for lingual orthodontics using the first complete digital "TAD" (torque angulation device) and "BPD" (bracket positioning device). J Indian Orthod Soc. 2010; 44: 9-16.
  • 7
    Mezomo M, de Lima EM, de Menezes LM, Weissheimer A. Indirect bonding with thermal glue and brackets with positioning jigs. Prog Orthod. 2011; 12: 180-5.
  • 8
    Swetha M, Pai VS, Sanjay N, Nandini S. Indirect versus direct bonding - a shear bond strength comparison: an in vitro study. J Contemp Dent Pract. 2011; 12: 232-8.
  • 9
    Dalessandri D, Dalessandri M, Bonetti S, Visconti L, Paganelli C. Effectiveness of an indirect bonding technique in reducing plaque accumulation around braces. Angle Orthod. 2012; 82: 313-8.
  • 10
    Zachrisson BU, Brobakken BO. Clinical comparison of direct versus indirect bonding with different bracket types and adhesives. Am J Orthod. 1978; 74: 62-78.
  • 11
    Soo-Byung P, Woo-Sung SON, Ching-Chang KO, García-Godoy F, Mi-Gyoung P, Hyung-II KIM, Kwon YH. Influence of flowable resins on the shear bond strength of orthodontic brackets. Dent Mater J. 2009; 28: 730-4.
  • 12
    Uysal T, Yagci A, Uysal B, Akdogan G. Are nano-composites and nano-ionomers suitable for orthodontic bracket bonding? Eur J Orthod. 2010; 32: 78-82.
  • 13
    Albaladejo A, Montero J, Gómez de Diego R, López-Valverde A. Effect of adhesive application prior to bracket bonding with flowable composites. Angle Orthod. 2011; 81: 716-20.
  • 14
    D'Attilio M, Traini T, Di Iorio D, Varvara G, Festa F, Tecco S. Shear bond strength, bond failure, and scanning electron microscopy analysis of a new flowable composite for orthodontic use. Angle Orthod. 2005; 75: 410-5.
  • 15
    Salerno M, Derchi G, Thorat S, Ceseracciu L, Ruffilli R, Barone AC. Surface morphology and mechanical properties of new-generation flowable resin composites for dental restoration. Dent Mater. 2011; 27: 1221-8.
  • 16
    Pick B, Rosa V, Azeredo TR, Cruz Filho EA, Miranda WGJr. Are flowable resin-based composites a reliable material for metal orthodontic bracket bonding? J Contemp Dent Pract. 2010; 11: 17-24.
  • 17
    Uysal T, Sari Z, Demir A. Are the flowable composites suitable for orthodontic bracket bonding? Angle Orthod. 2004; 74: 697-702.
  • 18
    Mitra SB, Wu D, Holmes BN. An application of nanotechnology in advanced dental materials. J Am Dent Assoc. 2003; 134: 382-90.
  • 19
    Polat O, Karaman A I, Buyukyilmaz T. In vitro evaluation of shear bond strengths and in vivo analysis of bond survival of indirect bonding resins. Angle Orthod. 2004; 74: 405-9.
  • 20
    Reynolds IR, Von Fraunhofer JA. Direct bonding in orthodontics: a comparison of attachments. Br J Orthod. 1977; 4: 65-9.
  • 21
    Eliades T. Orthodontic materials research and applications: part 1. Current status and projected future developments in bonding and adhesives. Am J Orthod Dentofacial Orthop. 2006; 130: 445-51.
  • 22
    Lemke K, Xu X, Hagan JL, Armbruster PC, Ballard RW. Bond strengths and debonding characteristics of two types of polycrystalline ceramic brackets. Aust Orthod J. 2010; 26: 134-40.
  • 23
    Muguruma T, Yasuda Y, Iijima M, Kohda N, Mizoguchi I. Force and amount of resin composite paste used in direct and indirect bonding. Angle Orthod. 2010; 80: 1089-94.
  • 24
    Hocevar RA, Vincent HF. Indirect versus direct bonding: bond and failure location. Am J Orthod Dentofacial Orthop. 1988; 94: 367-71.
  • 25
    Bryant S, Retief DH, Russel CM, Dennys FR. Tensile bond strength of orthodontic bonding resins and attachments to etched enamel. Am J Orthod Dentofacial Orthop. 1987; 92: 225-31.
  • 26
    Klocke A, Shi J, Vaziri F, Bärbel KN, Ulrich B. Effect of time bond strength in indirect Bonding. Angle Orthod. 2006; 76: 289-94.
  • 27
    Correr Sobrinho L, Correr GM, Consani S, Sinhoreti MA, Consani RL. [Influence of post-fixation time on shear bond strength of brackets fixed with different materials]. Pesqui Odontol Bras. 2002; 16: 43-9.
  • 28
    Minick GT, Oesterle LJ, Newman SM, Shellhart WC. Bracket bond strengths of new adhesive systems. Am J Orthod Dentofacial Orthop. 2009; 135: 771-6.

Publication Dates

  • Publication in this collection
    04 June 2013
  • Date of issue
    Dec 2012

History

  • Received
    09 Aug 2012
  • Accepted
    28 Sept 2012
Faculdade de Odontologia de Piracicaba - UNICAMP Avenida Limeira, 901, cep: 13414-903, Piracicaba - São Paulo / Brasil, Tel: +55 (19) 2106-5200 - Piracicaba - SP - Brazil
E-mail: brjorals@unicamp.br