Paper points & chemicals removal of gutta percha:
- Flushing action: residual of qutta- percha and sealers chemically solvent by floating pulp chamber with chloroform.
- Chemical soften GP can be absorbed and removed with appropriately sized, paper points.
- Drying solvent-filled canals with paper points is known as "wicking action" . solution
- Paper points "wick" by pulling dissolved GP from peripheral to central.
- Finally, the canal is flushed with 70% isopropyl alcohol to eliminate the residual chemically softened GP.