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

Overview

Journal J Dent (Tehran)

Specialty Dentistry

Date 2017 Mar 1

PMID 28243304

Citations 8

Authors

Javad Chalipa

Yasamin Farajzadeh Jalali

Fatemeh Gorjizadeh

Pedram Baghaeian

Mohammad Hashem Hoseini

Omid Mortezai

Affiliations

Soon will be listed here.

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.

Citing Articles

Shear Bond Strength of Metal and Ceramic Brackets Depending on Etching Protocol in Direct Bonding Technique.

Nawrocka A, Nowak J, Sauro S, Hardan L, Bourgi R, Lukomska-Szymanska M Materials (Basel). 2023; 16(20).

PMID: 37895679 PMC: 10608197. DOI: 10.3390/ma16206697.

Shear strength of metal brackets using LED lamps with different wavelengths: An comparative study.

Mauricio F, Medina J, Mauricio-Vilchez C, Vilchez L, Mendoza R, Mayta-Tovalino F J Orthod Sci. 2023; 12:47.

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Assessment of enamel surface roughness and hardness with metal and ceramic orthodontic brackets using different etching and adhesive systems: An study.

Zawawi R, Almosa N Saudi Dent J. 2023; 35(6):641-650.

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Comparison of Bond Strength of Orthodontic Brackets Onto the Tooth Enamel of 120 Freshly Extracted Adult Bovine Medial Lower Incisors Using 4 Adhesives: A Resin-Modified Glass Ionomer Adhesive, a Composite Adhesive, a Liquid Composite Adhesive, and....

Prylinska-Czyzewska A, Maciejewska-Szaniec Z, Olszewska A, Polichnowska M, Grabarek B, Dudek D Med Sci Monit. 2022; 28:e938867.

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Comparative Evaluation of Two Bracket Systems' Bond Strength: Conventional and Self-Ligating.

Vartolomei A, Ghiga D, Serbanoiu D, Moldovan M, Cuc S, Pacurar M Dent J (Basel). 2022; 10(10).

PMID: 36286006 PMC: 9600873. DOI: 10.3390/dj10100196.

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