Clinical evaluation
swelling, pain
All study groups showed a significant improvement regarding clinical signs and symptoms during follow-up periods. In the ozonated-olive oil group, at 3- and 6-month follow-up periods, all cases revealed no signs of spontaneous pain or gingival swelling while at twelve months, one case (3.7%) showed gingival swelling and spontaneous pain. Also, two cases (7.4%) sensed pain with percussion and exhibited mobility at a twelve-month follow-up period. Regarding the zinc oxide-olive oil group, two cases (7.1%) showed mobility at a 12-month follow-up period. On the other hand, mobility and pain with percussion were observed in five cases (17.9%) of the ZOE group at a twelve-month follow-up interval. Using the Friedman test, there were significant statistical differences in relation to all clinical variables within the same group at different follow-up periods (The clinical evaluation findings among studied groups at different follow-up periods