[Effect of molar root canal angles on the integrity of impression made by agar].

Purpose: To evaluate the effect of impressions made by agar/alginate compared with silicon rubber material.

Methods: Five moulds of bi-root canal molar, with different root canal angles of 0°, 10°, 20°, 30° and 40° were made. Twenty impressions were made for each mould with either silicon rubber or agar/alginate.