Orthodontic bracket shear bond strengths produced by two high-power light-emitting diode modes and halogen light

Hakan Türkkahraman, H. Cenker Küçükeşmen

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The aim of this in vitro study was to compare the shear bond strength of orthodontic brackets cured with two different high-power light-emitting diode (LED) polymerization modes with traditional halogen polymerization. A total of forty-five extracted human premolar teeth were randomly divided into three groups. Each group consisted of 15 teeth mounted in an acrylic block. Following a standard enamel etching protocol, orthodontic brackets were cured on the first group of teeth with fast-mode LED, the second group with soft-start mode LED, and on the last group with a halogen light. After bonding, the shear bond strengths of the brackets were tested with a universal testing machine. The results showed that brackets cured with soft-start mode LED produced the highest shear bond strengths (23.86 ± 6.20 MPa). No significant difference was found between fast-mode LED (17.14 ± 5.75 MPa) and the halogen group (17.38 ± 5.41 MPa) (P > .05). The LED is effective for bonding metal brackets to teeth, and the soft-start mode gives higher bond strengths than the fast mode.

Original languageEnglish (US)
Pages (from-to)854-857
Number of pages4
JournalAngle Orthodontist
Volume75
Issue number5
StatePublished - Sep 1 2005
Externally publishedYes

Keywords

  • Bond strength
  • Fast-mode polymerization
  • LED
  • Soft-start polymerization

ASJC Scopus subject areas

  • Orthodontics

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