Effect of combination of pulsed CO2 laser irradiation and diammine silver fluoride treatment on ultrastructure of dentine.
- Author:
Qi WANG
1
;
Ji-Zhi ZHAO
;
Xiao-Min WU
Author Information
- Publication Type:Journal Article
- MeSH: Dentin; drug effects; radiation effects; ultrastructure; Fluorides; pharmacology; Humans; Lasers; Lasers, Gas; Silver Compounds; pharmacology
- From: Acta Academiae Medicinae Sinicae 2010;32(3):265-268
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo explore the effect of combination of pulsed CO2 laser irradiation and diammine silver fluoride treatment on the ultrastructure of dentine.
METHODSEach extracted molars was made into four identical dentinal specimens, which were randomly divided into 4 groups according to the treatment methods: A, control group; B, pulsed CO2 laser irradiation; C, coated with 38%Ag(NH3)2F; and D, laser irradiation plus fluoride. Scanning electron microscope (SEM) analysis was performed.
RESULTSAs shown by SEM, group A showed clear dentinal tubuli, group B showed melted surface without dentinal tubule openings, group C showed thicker melted layer without dentinal tubule openings, and group D showed the thickest melted and recrystallized layer on dentine surface.
CONCLUSIONSBoth pulsed CO2 laser irradiation and 38%Ag(NH3)2F treatment can seal dentinal tubule. The combination of these two techniques can form a synergistic effect.
