Abstract
The purpose of this study was to observe the clinical efficacy of the chemo-mechanical caries removal gel CarisolvTM (MEDI-TEAM) on primary teeth and to investigate the influence of CarisolvTM on the hardness of the dentin after caries removal.
Clinical observation was carried out on 11 primary teeth of 6 children aged from 6 years 2 months to 9 years 10 months (average: 7 years 8 months) using CarisolvTM to remove caries.
The Knoop hardness of the dentin after caries removal was also measured on 5 extracted primary canines which had decay in dentin. The teeth were longitudinally sectioned at the center portion of the cavity. For one side of the sectioned specimens, caries was removed using CarisolvTM and originaly developed hand instruments (Carisolv Group) and for the other side of the sectioned specimens, caries was removed using a round bur fixed with a high speed handpiece (Bur Group). The Knoop indentor using a load of 10 g for 15 seconds was used to measure the indentations. The hardness was determined every 50μm from the caries removed surface to 300 μm depth toward pulp chamber wall at the center of the cavity,200μm incisalward and 200μm cervicalward from the center of the cavity. All of the data were statistically analyzed using a one way ANOVA with subsequent Tukey-Kramer multiple comparison tests at p<0.05. The results obtained were as follows. (Clinical observation):
1) None of the patients complained to pain during caries removal byCarisolvTM.
2) For 9 teeth out of 11, a bur fixed with a handpiece or an air turbine was required for cavity preparation or caries removal.
3) For 5 teeth out of 11, local anesthesia was required for use of an air turbine (4 teeth) or rubber dam (3 teeth).
4) For 7 teeth out of 11, slight redness and swelling of the gingiva was observed after treatment by CarisolvTM.
5) For 7 teeth out of 11, the caries was not sufficiently removed by CarisolvrTM. (Microhardness test):
1) In the comparison of the Knoop hardness between the Carisolv Group and Bur Group, there was no significant difference at the all measuring depths.
CarisolvTM might be effective for the child patients who are adverse to the sound and the vibration of an air turbine and a handpiece.
