Mechanical properties of composite resins light-cured using a blue DPSS laser

Du Man Baek, Jeong Kil Park, Sung Ae Son, Ching Chang Ko, Franklin Garcia-Godoy, Hyung Il Kim, Yong Hoon Kwon

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Lasers have many favorable features as a light source owing to their monochromaticity and coherence. This study examined the mechanical properties of composite resins that were light-cured using a diode-pumped solid state (DPSS) laser. Eight composite resins were light-cured using four different light sources (one quartz-tungsten-halogen (QTH), two light-emitting diodes (LEDs), and one DPSS laser with a wavelength of 473 nm). The light intensity of the DPSS laser and remaining light-curing units were approximately 500 and 900 mW/cm2, respectively. The microhardness, flexural properties, and compressive properties were evaluated using the Vickers hardness test, three-point bending test, and compression test, respectively. In most cases, the microhardness, flexural properties, and compressive properties of the specimens light-cured using the DPSS laser were similar to those obtained using the other light-curing units. Within the limits of the study, the microhardness, flexural modulus, and compressive strength were linearly correlated with the filler content (in weight percent). The flexural modulus and compressive modulus were also linearly correlated with the microhardness. Even with a much lower light intensity, the DPSS laser with a wavelength of 473 nm can polymerize composite resins and give comparable mechanical properties to those obtained using the other light-curing units.

Original languageEnglish (US)
Pages (from-to)597-604
Number of pages8
JournalLasers in Medical Science
Volume28
Issue number2
DOIs
StatePublished - Feb 1 2013

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Composite Resins
Solid-State Lasers
Light
Hardness Tests
Compressive Strength
Tungsten
Quartz
Halogens
Lasers
Weights and Measures

All Science Journal Classification (ASJC) codes

  • Surgery
  • Dermatology

Cite this

Mechanical properties of composite resins light-cured using a blue DPSS laser. / Baek, Du Man; Park, Jeong Kil; Son, Sung Ae; Ko, Ching Chang; Garcia-Godoy, Franklin; Kim, Hyung Il; Kwon, Yong Hoon.

In: Lasers in Medical Science, Vol. 28, No. 2, 01.02.2013, p. 597-604.

Research output: Contribution to journalArticle

Baek, Du Man ; Park, Jeong Kil ; Son, Sung Ae ; Ko, Ching Chang ; Garcia-Godoy, Franklin ; Kim, Hyung Il ; Kwon, Yong Hoon. / Mechanical properties of composite resins light-cured using a blue DPSS laser. In: Lasers in Medical Science. 2013 ; Vol. 28, No. 2. pp. 597-604.
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