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Laser versus LED polymerization: Comparison of in vitro preventive sealing procedures.
J Appl Biomater Funct Mater 2019 Jan-Mar; 17(1):2280800018816013JA

Abstract

INTRODUCTION:

The technique of sealing is a widely accepted procedure for prevention of caries. The aim of our in vitro study was to compare the effect of two different curing units (traditional LED source and innovative laser diode lamp) on the integrity of fissure sealant material and its interface with tooth enamel.

MATERIALS AND METHODS:

Sixty healthy third molars were randomly assigned to two groups. In group A were teeth intended for polymerization by LED B lamp, and group B comprised teeth to be polymerized by an innovative laser diode. Both groups were treated with the traditional sealing technique, subjected to a metallization process, and analyzed by scanning electron microscope.

RESULTS:

Micro-gaps between the sealant and the enamel were found in specimens in both A (43%) and B (40%) groups (p=0.793), and sealant shrinkage was seen. Significant differences between the groups emerged in the percentage of perimetric micro-erosion sites (80% vs. 100%, p=0.010) and the presence of holes and micro-bubbles on the sealant surface (21% vs. 63%, p=0.001).

CONCLUSIONS:

Although macroscopic clinical polymerization occurred with both instruments, the microscopic evaluation showed significant differences between the studied groups in terms of perimetric micro-erosion sites and micro-bubbles, which were higher in laser-cured samples.

Authors+Show Affiliations

1 Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.2 Department of Dentistry, Vita Salute University, IRCCS San Raffaele Hospital, Milan, Italy.2 Department of Dentistry, Vita Salute University, IRCCS San Raffaele Hospital, Milan, Italy.1 Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.1 Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.2 Department of Dentistry, Vita Salute University, IRCCS San Raffaele Hospital, Milan, Italy.3 Department of Chemistry, Materials and Chemical Engineering "G. Natta," Politecnico di Milano, Milan, Italy.2 Department of Dentistry, Vita Salute University, IRCCS San Raffaele Hospital, Milan, Italy.1 Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30803291

Citation

Mastrangelo, Filiberto, et al. "Laser Versus LED Polymerization: Comparison of in Vitro Preventive Sealing Procedures." Journal of Applied Biomaterials & Functional Materials, vol. 17, no. 1, 2019, p. 2280800018816013.
Mastrangelo F, Perraro I, Mattia S, et al. Laser versus LED polymerization: Comparison of in vitro preventive sealing procedures. J Appl Biomater Funct Mater. 2019;17(1):2280800018816013.
Mastrangelo, F., Perraro, I., Mattia, S., Troiano, G., Zhurakivska, K., Polizzi, E., ... Lo Muzio, L. (2019). Laser versus LED polymerization: Comparison of in vitro preventive sealing procedures. Journal of Applied Biomaterials & Functional Materials, 17(1), p. 2280800018816013. doi:10.1177/2280800018816013.
Mastrangelo F, et al. Laser Versus LED Polymerization: Comparison of in Vitro Preventive Sealing Procedures. J Appl Biomater Funct Mater. 2019;17(1):2280800018816013. PubMed PMID: 30803291.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Laser versus LED polymerization: Comparison of in vitro preventive sealing procedures. AU - Mastrangelo,Filiberto, AU - Perraro,Isabella, AU - Mattia,Sabrina, AU - Troiano,Giuseppe, AU - Zhurakivska,Khrystyna, AU - Polizzi,Elisabetta, AU - Chiesa,Roberto, AU - Gherlone,Enrico, AU - Lo Muzio,Lorenzo, PY - 2019/2/27/entrez PY - 2019/2/26/pubmed PY - 2019/6/4/medline KW - LED KW - Preventive sealing KW - laser polymerization KW - polymerization SP - 2280800018816013 EP - 2280800018816013 JF - Journal of applied biomaterials & functional materials JO - J Appl Biomater Funct Mater VL - 17 IS - 1 N2 - INTRODUCTION:: The technique of sealing is a widely accepted procedure for prevention of caries. The aim of our in vitro study was to compare the effect of two different curing units (traditional LED source and innovative laser diode lamp) on the integrity of fissure sealant material and its interface with tooth enamel. MATERIALS AND METHODS:: Sixty healthy third molars were randomly assigned to two groups. In group A were teeth intended for polymerization by LED B lamp, and group B comprised teeth to be polymerized by an innovative laser diode. Both groups were treated with the traditional sealing technique, subjected to a metallization process, and analyzed by scanning electron microscope. RESULTS:: Micro-gaps between the sealant and the enamel were found in specimens in both A (43%) and B (40%) groups (p=0.793), and sealant shrinkage was seen. Significant differences between the groups emerged in the percentage of perimetric micro-erosion sites (80% vs. 100%, p=0.010) and the presence of holes and micro-bubbles on the sealant surface (21% vs. 63%, p=0.001). CONCLUSIONS:: Although macroscopic clinical polymerization occurred with both instruments, the microscopic evaluation showed significant differences between the studied groups in terms of perimetric micro-erosion sites and micro-bubbles, which were higher in laser-cured samples. SN - 2280-8000 UR - https://www.unboundmedicine.com/medline/citation/30803291/Laser_versus_LED_polymerization:_Comparison_of_in_vitro_preventive_sealing_procedures L2 - http://journals.sagepub.com/doi/full/10.1177/2280800018816013?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -