1992 Volume 13 Issue 1 Pages 40-46
The objects of root canal filling are an airtight seal of the root canal and protection of pradentium from irritation.
The root canal filling by pressure, using gutta percha with a sealer is general at present.
But the filled substance is removed by the softening agents of gutta percha in addition to the mechanical method using a reamer and file when it is necessary to treat again.
Hitherto, chloroform is mainly used as the softening agent, but the development of other products is requested in point of safety.
Then, we tested the dissolution amount of gutta percha and volatility at temperature of room and oral cavity temperature by GP・Solvent and Eucaly Soft which are recently on the market as softening agents of gutta perch.
The results were as follows :
1. There was no difference in the dissolution amount of gutta percha between GP・Solvent and Eucaly Soft at room temperature and oral cavity.
2. GP・Solvent and Eucaly Soft did not volatilize perfectly at room temperature but GP・Solvent volatilized on 120～140 minutes and Eucaly Soft on 60～70 minutes at oral cavity temperature.
3. It is thought that the residual after the removal of filling substances by Eucaly Soft is a small quantity an clinical treatment.
