•Purpose: To clinically and radiographically examine the effects of extrusion of AH Plus sealer on the healing of permanent teeth with apical periodontitis.
-N=87 root canals radiographically detected with apical periodontitis. (age range: 9-15 years).
-RCT: WL=RG apex-1mm, #35-#40 instrumentation, (2.5%) NaOCl, obturation with GP and AH plus sealer (lateral condensation)
-Posttreatment RGs indicated:
– Sealer extrusion, 49 canals (Group 1) .
–No sealer extrusion, 38 canals (Group 2).
– At the end of a 4-year follow-up period Periapical treatment was judged as: – complete healing (CH) – incomplete healing (IH)
-No healing (NH)
– Amounts of extraradicular sealer were recorded as: “unchanged” “reduced” “almost absent” “absent”
•Most highlighted Results:
•In cases with sealer extrusion: CH was detected in 83.6%
• In cases with no sealer extrusion: CH was detected in 89.5%
•A statistically significant difference between treatment groups was observed for CH at the 6-month follow-up appointment only.
•There were no statistical differences for CH or NH between the groups in further follow-ups.
•extruded AH Plus does not prevent periapical healing, but can be a delaying factor for healing in children.