Evaluation of temperature rise and efficacy of cavity disinfection with diode laser: An
Cavity disinfection
diode laser
temperature rise
Journal
Journal of conservative dentistry : JCD
ISSN: 0972-0707
Titre abrégé: J Conserv Dent
Pays: India
ID NLM: 101147009
Informations de publication
Date de publication:
Historique:
received:
21
02
2019
revised:
03
04
2020
accepted:
10
04
2020
entrez:
22
10
2020
pubmed:
23
10
2020
medline:
23
10
2020
Statut:
ppublish
Résumé
Management of caries using minimally invasive dentistry is prevalent in dentistry today. A newer technology is to disinfect/sterilize caries in depth of the dental tissue with diode laser. However, to have a bactericidal effect, increased energy density of light amplification by stimulated emission of radiation (LASER) may be required which in turn may lead to higher thermal load causing harmful effects on vital pulpal tissue. The aim was to evaluate temperature rise and efficacy of cavity disinfection with diode laser. Twenty permanent molar teeth with dentinal caries were randomly assigned into two groups on the basis of LASER irradiation: Group 1 - at 1 W, Group 2 - at 2 W. The elevation of subsurface temperature during irradiation was measured using thermocouples positioned in the center of a prepared cavity. Dentinal samples were collected before and after disinfection of the cavity. These samples were subjected to microbiological evaluation for Log transformed " Although the reduction in microbial count revealed insignificant difference at two different wattages, the rise in temperature with 1 W was less than that with 2 W. Efficacy of 1 W and 2 W is similar, but 1 W causes less thermal changes, thus, 1 W is recommended over 2 W.
Sections du résumé
BACKGROUND
BACKGROUND
Management of caries using minimally invasive dentistry is prevalent in dentistry today. A newer technology is to disinfect/sterilize caries in depth of the dental tissue with diode laser. However, to have a bactericidal effect, increased energy density of light amplification by stimulated emission of radiation (LASER) may be required which in turn may lead to higher thermal load causing harmful effects on vital pulpal tissue.
AIMS
OBJECTIVE
The aim was to evaluate temperature rise and efficacy of cavity disinfection with diode laser.
MATERIALS AND METHODS
METHODS
Twenty permanent molar teeth with dentinal caries were randomly assigned into two groups on the basis of LASER irradiation: Group 1 - at 1 W, Group 2 - at 2 W. The elevation of subsurface temperature during irradiation was measured using thermocouples positioned in the center of a prepared cavity. Dentinal samples were collected before and after disinfection of the cavity. These samples were subjected to microbiological evaluation for
STATISTICAL ANALYSIS
METHODS
Log transformed "
RESULTS
RESULTS
Although the reduction in microbial count revealed insignificant difference at two different wattages, the rise in temperature with 1 W was less than that with 2 W.
CONCLUSION
CONCLUSIONS
Efficacy of 1 W and 2 W is similar, but 1 W causes less thermal changes, thus, 1 W is recommended over 2 W.
Identifiants
pubmed: 33088070
doi: 10.4103/JCD.JCD_78_19
pii: JCD-22-583
pmc: PMC7542083
doi:
Types de publication
Journal Article
Langues
eng
Pagination
583-587Informations de copyright
Copyright: © 2020 Journal of Conservative Dentistry.
Déclaration de conflit d'intérêts
There are no conflicts of interest.
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