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The effect of argon laser irradiation on demineralization resistance of human enamel adjacent to orthodontic brackets: an in vitro study.
Angle Orthod. 2003 Jun; 73(3):249-58.AO

Abstract

Argon lasers, because of their significant timesavings over conventional curing lights, have been investigated for use in bonding orthodontic brackets. They are also being investigated for their ability to confer demineralization resistance on enamel, which is of great interest in orthodontics. A two-part in vitro study on 86 human posterior teeth was conducted to determine the effects of a five-second argon laser exposure on shear bond strength and to evaluate the effects of a five- and 10-second argon laser exposure (250 mW) on demineralization of enamel surrounding orthodontic brackets after exposure to an artificial caries bath. Brackets cured with the argon laser for five seconds yielded mean bond strengths similar to those attained with a 40-second conventional light-cured control (n = 13 per group, 20.4 vs 17.8 MPa). Brackets cured with the argon laser for 10 seconds resulted in significantly lower mean lesion depth when compared with a visible light control (n = 20 per group, 107.8 vs 137.2 microm, P = .038). There were no statistically significant differences in lesion depth between the five-second argon laser and the visible light control groups. Overall, there was a 15% and 22% reduction in lesion depths for the five- and 10-second group, respectively. Poor correlations were found between the clinical appearance of decalcifications and their lesion depth. Argon lasers used for bonding orthodontic brackets would save a significant amount of chair time while possibly conferring demineralization resistance upon the enamel.

Authors+Show Affiliations

Mayo Clinic, Department of Dental Specialties, Division of Orthodontics, Rochester, MN 55905, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

12828433

Citation

Noel, Lloyd, et al. "The Effect of Argon Laser Irradiation On Demineralization Resistance of Human Enamel Adjacent to Orthodontic Brackets: an in Vitro Study." The Angle Orthodontist, vol. 73, no. 3, 2003, pp. 249-58.
Noel L, Rebellato J, Sheats RD. The effect of argon laser irradiation on demineralization resistance of human enamel adjacent to orthodontic brackets: an in vitro study. Angle Orthod. 2003;73(3):249-58.
Noel, L., Rebellato, J., & Sheats, R. D. (2003). The effect of argon laser irradiation on demineralization resistance of human enamel adjacent to orthodontic brackets: an in vitro study. The Angle Orthodontist, 73(3), 249-58.
Noel L, Rebellato J, Sheats RD. The Effect of Argon Laser Irradiation On Demineralization Resistance of Human Enamel Adjacent to Orthodontic Brackets: an in Vitro Study. Angle Orthod. 2003;73(3):249-58. PubMed PMID: 12828433.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effect of argon laser irradiation on demineralization resistance of human enamel adjacent to orthodontic brackets: an in vitro study. AU - Noel,Lloyd, AU - Rebellato,Joe, AU - Sheats,Rose D, PY - 2003/6/28/pubmed PY - 2003/9/6/medline PY - 2003/6/28/entrez SP - 249 EP - 58 JF - The Angle orthodontist JO - Angle Orthod VL - 73 IS - 3 N2 - Argon lasers, because of their significant timesavings over conventional curing lights, have been investigated for use in bonding orthodontic brackets. They are also being investigated for their ability to confer demineralization resistance on enamel, which is of great interest in orthodontics. A two-part in vitro study on 86 human posterior teeth was conducted to determine the effects of a five-second argon laser exposure on shear bond strength and to evaluate the effects of a five- and 10-second argon laser exposure (250 mW) on demineralization of enamel surrounding orthodontic brackets after exposure to an artificial caries bath. Brackets cured with the argon laser for five seconds yielded mean bond strengths similar to those attained with a 40-second conventional light-cured control (n = 13 per group, 20.4 vs 17.8 MPa). Brackets cured with the argon laser for 10 seconds resulted in significantly lower mean lesion depth when compared with a visible light control (n = 20 per group, 107.8 vs 137.2 microm, P = .038). There were no statistically significant differences in lesion depth between the five-second argon laser and the visible light control groups. Overall, there was a 15% and 22% reduction in lesion depths for the five- and 10-second group, respectively. Poor correlations were found between the clinical appearance of decalcifications and their lesion depth. Argon lasers used for bonding orthodontic brackets would save a significant amount of chair time while possibly conferring demineralization resistance upon the enamel. SN - 0003-3219 UR - https://www.unboundmedicine.com/medline/citation/12828433/The_effect_of_argon_laser_irradiation_on_demineralization_resistance_of_human_enamel_adjacent_to_orthodontic_brackets:_an_in_vitro_study_ L2 - http://www.angle.org/doi/10.1043/0003-3219(2003)073<0249:TEOALI>2.0.CO;2?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -