Original Article

Comparison of Bond Strength of Metal and Ceramic Brackets Bonded with Conventional and High-Power LED Light Curing Units

Abstract

Objectives: The aim of this study was to evaluate the effect of conventional and high-power light emitting diode (LED) light curing units on shear bond strength (SBS) of metal and ceramic brackets to tooth surface.
Materials and Methods: Forty sound bovine maxillary central incisors were used for the study. The teeth were divided into four groups (n=10). Teeth surfaces were etched with 37% phosphoric acid for 20 seconds. After applying a uniform layer of adhesive primer on the etched enamel, composite was placed on the base of brackets. The samples were light cured according to the manufacturer’s instructions and thermocycled. The SBS was measured. The failure mode was scored using the adhesive remnant index (ARI).
Results: The mean SBS of samples in groups A (high-power LED, metal bracket), B (high-power LED, ceramic bracket), C (conventional LED, metal bracket) and D (conventional LED, ceramic bracket) was 23.1±3.69, 10.7±2.06, 24.92±6.37 and 10.74±3.18MPa, respectively. The interaction effect of type of LED unit (high-power/conventional) and bracket type on SBS was not statistically significant (P=0.483). In general, type of LED unit did not affect SBS. Type of bracket significantly affected SBS (P<0.001). The ARI score was not significantly influenced by the interaction between the type of LED unit and bracket.
Conclusions: The obtained SBS is the same for both bracket types by use of high-power and conventional LED light curing units. Regardless of the type of LED unit, SBS of ceramic brackets was significantly lower than that of metal brackets.

 

- Finnema KJ, Özcan M, Post WJ, Ren Y, Dijkstra PU. In-vitro orthodontic bond strength testing: a systematic reviewand meta-analysis. Am J Orthod Dentofacial Orthop. 2010 May;137(5):615-22.

- Kidd EA. Microleakage: a review. J Dent. 1976 Sep;4(5):199-206.

- Buonocore MG. A simple method of increasing the adhesion of acrylic filing materials to enamel surfaces. J Dent Res. 1955 Dec;34(6):849-53.

- Newman GV. Bonding plastic orthodontic attachments to tooth enamel. J NJ Dent Soc. 1964 May;35:346-58.

- Tavas MA, Watts DC. Bonding of orthodontic brackets by transillumination of a light-activated composite: an in vitro study. Br J Orthod. 1979 Oct;6(4):207-8.

- James JW, Miller BH, English JD, Tadlock LP, Buschang PH. Effects of high-speed curing devices

on shear bond strength and microleakage of orthodontic brackets. Am J Orthod Dentofacial Orthop. 2003 May;123(5):555-61.

- Eliades T, Eliades G, Brantley WA, Johnston WM. Polymerization efficiency of chemically cured and visible light cured orthodontic adhesives: degree of cure. Am J Orthod Dentofacial Orthop. 1995 Sep;108 (3):294-301.

- Mills RW, Jandt KD, Ashworth SH. Dental composite depth of cure with halogen and blue light emitting diode technology. Br Dent J. 1999 Apr;186 (8):388-91.

- Stansbury JW. Curing dental resins and composite by photopolymerization. J Esthet Dent. 2000;12(6): 300-8.

- Dunn WJ, Bush AC. A comparison of polymerization by light-emitting diode and halogen-based light-curing units. J Am Dent Assoc. 2002 Mar;133(3):335-41.

- Althoff O, Hartung M. Advances in light curing. Am J Dent. 2000 Nov;13(Spec No):77D-81D.

- Fujibayashi K, Ishimaru K, Takahashi N, Kohno A. Newly developed curing unit using blue light-emitting diodes. Dent Jap.1998;34:49-53.

- Barghi N, Berry T, Hatton C. Evaluating intensity output of curing lights in private dental offices. J Am Dent Assoc. 1994 Jul;125(7):992-6.

- Rueggeberg FA, Twiggs SW, Caughman WF, Khajotia S. Lifetime intensity profiles of eleven light-curing units. J Dent Res. 1996 Jan;75:380.

- Mills RW, Jandt KD. Blue LEDs for curing polymer based dental filling materials. LEOS Newsletter. 1998;12:9-10.

- Krishnaswamy NR, Sunitha C. Light-emitting diode vs halogen light curing of orthodontic brackets: A 15-month clinical study of bond failures. Am J Orthod Dentofacial Orthop. 2007 Oct;132(4):518-23.

- Martinelli J, Pires-de-Souza Fde C, Casemiro LA, Tirapelli C, Panzeri H. Abrasion resistance of composites polymerized by light-emitting diodes (LED) and halogen light-curing units. Braz Dent J. 2006;17(1):29-33.

- Sunna S, Rock WP. Clinical performance of orthodontic brackets and adhesive systems: a randomized clinical trial. Br J Orthod. 1998 Nov;25 (4):283-7.

- Mills RW. Blue light emitting diodes-another method of light curing? Br Dent J. 1995 Mar;178 (5):169.

- Bishara SE, Ajlouni R, Oonsombat C. Evaluation of a new curing light on the shear bond strength of orthodontic brackets. Angle Orthod. 2003 Aug;73(4): 431-5.

- Ansari S, Gupta G, Gautam R, Kalia A. Evaluation of different brands of LED curing devices for bonding metallic orthodontic brackets. Dentistry 2014 Aug;4(9):252.

- Haitz RH, Craford MG, Weissman RH. Handbook of optics. 2nd ed., New York, McGraw Hill Inc., 1995:1-12,39

- Türkkahraman H, Küçükeşmen HC. Orthodontic bracket shear bond strengths produced by two high power light emitting diode modes and halogen light. Angle Orthod. 2005 Sep;75(5):854-7.

- Uşümez S, Büyükyilmaz T, Karaman AI. Effect of light emitting diode on bond strength of orthodontic brackets. Angle Orthod. 2004 Apr;74(2): 259-63.

- Wiggins KM, Hartung M, Althoff O, Wastian C, Mitra SB. Curing performance of a new-generation light-emitting diode dental unit. J Am Dent Assoc. 2004 Oct;135(10):1471-9.

- Mavropoulos A, Staudt CB, Kiliaridis S, Krejci I. Light curing time reduction: in vitro evaluation of new intensive light-emitting diode curing units. Eur J Orthod. 2005 Aug;27(4):408-12.

- Thind BS, Stirrups DR, Lloyd CH. A comparison of tungsten-quartz-halogen, plasma arc and light-emitting diode light sources for the polymerization of an orthodontic adhesive. Eur J Orthod. 2006 Feb;28 (1):78-82.

- Fleming PS, Eliades T, Katsaros C, Pandis N. Curing lights for orthodontic bonding: a systematic review and meta-analysis. Am J Orthod Dentofacial Orthop. 2013 Apr;143(4 Suppl):S92-103.

- Retief DH. Failure at the dental adhesive-etched enamel interface. J Oral Rehabil. 1974 Jul;1(3):265-84.

- Katona TR. A comparison of the stresses developed in tension; shear peel, and torsion strength testing of direct bonded orthodontic brackets. Am J Orthod Dentofacial Orthop 1997 Sep;112(3):244-51.

- Artun J, Bergland S. Clinical trials with crystal growth conditioning as an alternative to acid-etch enamel pretreatment. Am J Orthod. 1984 Apr;85(4): 333-40.

- Cehreli ZC, Kecik D, Kocadereli I. Effect of self-etching primer and adhesive formulations on the shear bond strength of orthodontic brackets. Am J Orthod Dentofacial Orthop. 2005 May;127(5):573-9.

- Daub J, Berzins DW, Linn JB, Bradley TG. Bond strength of direct and indirect bonded brackets after thermocycling. Angle Orthod. 2006 Mar;76(2):295-300.

- Arici S, Arici N. Effects of thermocycling on the bond strength of a resin- modified glass ionomer cement: An in vitro comparative study. Angle Orthod. 2003 Dec;73(6):692-6.

- Bishara SE, Ostby AW, Laffoon JF, Warren J. Shear bond strength comparison of two adhesive systems following thermocycling. Angle Orthod. 2007 Mar;77(2):337-41.

- Trites B, Foley TF, Banting D. Bond strength comparison of 2 self-etching primers over a 3-month storage period. Am J Orthod Dentofacial Orthop. 2004 Dec;126(6):709-16.

- Yuasa T, Iijima M, Ito S, Muguruma T, Saito T, Mizoguchi I. Effects of long-term storage and thermocycling on bond strength of two self-etching primer adhesive systems. Eur J Orthod. 2010 Jun;32 (3):285-90.

- Gale MS, Darvell BW. Thermal cycling procedures for laboratory testing of dental restorations.J Dent.1999 Feb;27(2):89-99.

- Cerekja E, Cakirer B. Effect of short curing times with a high-intensity light-emitting diode or high-power halogen on shear bond strength of metal brackets before and after thermocycling. Angle Orthod. 2011 May;81(3):510-6.

- Oesterle LJ, Newman SM, Shellhart WC. Rapid curing of bonding composite with a xenon plasma arc light. Am J Orthod Dentofacial Orthop. 2001 Jun;119(6):610-6.

- Swanson T, Dunn WJ, Childers DE, Taloumis LJ. Shear bond strength of orthodontic brackets bonded with light-emitting diode curing units at various polymerization times. Am J Orthod Dentofacial Orthop. 2004 Mar;125(3):337-41.

- Ward JD, Wolf BJ, Leite LP, Zhou J. Clinical effect of reducing curing times with high- intensity LED lights. Angle Orthod. 2015 Nov;85(6):1064-9.

- Ramoglu SI, Karamehmetoglu H, Sari T, Usumez S. Temperature rise caused in the pulp chamber under simulated intrapulpal microcirculation with different light-curing modes. Angle Orthod. 2015 May;85(3): 381-5.

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IssueVol 13, No 6 (2016) QRcode
SectionOriginal Article
Keywords
Orthodontic Brackets Shear Strength Light-Curing of Dental Adhesives

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How to Cite
1.
Chalipa J, Farajzadeh Jalali Y, Gorjizadeh F, Baghaeian P, Hoseini MH, Mortezai O. Comparison of Bond Strength of Metal and Ceramic Brackets Bonded with Conventional and High-Power LED Light Curing Units. Front Dent. 2017;13(6):423-430.