To compare the effect of immediate versus delayed post space preparation on the apical seal using AH Plus sealer.
26 single rooted anterior extracted teeth were instrumented and divided into four groups. Ten teeth in group 1 and 2 and three teeth in group 3 and 4. In groups 1 and 2, each canal was obturated using warm vertical compaction and AH Plus sealer. In group 1 the post space was made immediately at the time of obturation and in group 2 the post space was made after placing the teeth in saline at 37° C for 1 week. Group 3 and 4 represented positive and negative control groups respectively. The teeth were placed in methylene blue for 48 hrs. The teeth were sectioned and the amount of apical dyemigration was measured.
Significant differences were found between teeth whose post spaces were prepared at the time of obturation versus 1 week later.
Obturation, AH Plus, Post Space, Immediate, Delayed
