• Somchai Limsombutanon B.Sc., D.D.S., Grad.Dip.in Clin.Sc. (Endodontics), Cert. in Endodontics, M.S.
• Wacharee Peeravanichkul D.D.S., Grad.Dip.in Clin.Sc. (Endodontics)

Objective  The purpose of this study was to evaluate some physical properties of CU (Chulalongkorn University) root canal sealer and to compare these properties with those of Proco-Sol sealer.

Materials and methods  CU root canal sealer and Proco-Sol sealer were tested for some physical properties: consistency, setting time, compressive strength, film thickness and solubility. The test methods were based on International Standard ISO 6876 and Revised ANSI/ADA Specification No.30.

Results  The values determined for the physical properties of CU root canal sealer were as the followings: consistency = 27.57 mm, setting time = 49 h 38 min, compressive strength = 1.189 MPa, film thickness = 0.104 mm and solubility in distilled water = 7.57%, whereas the values of Proco-Sol sealer were 30.94 mm, 12 h 33 min, 5.998 MPa, 0.148 mm and 2.53% respectively. Those values of each property showed statistically significant differences (p<0.05).

Conclusion  Physical properties of CU sealer when compared with those of Proco-Sol showed higher consistency, about four times longer in setting time, about five times lower in compressive strength, lower film thickness and about three times higher in solubility.

(CU Dent J 2001;24:89-100)