Two-session regenerative endodontic treatment was applied to 20 immature mandibular first molars with symptomatic irreversible pulpitis and symptomatic apical periodontitis. At the end of the first session, calcium hydroxide \[Ca(OH)2\] was applied to 10 randomly selected teeth and double antibiotic paste (DAP) intracanal medicaments were applied to the other 10 teeth. The effects of intracanal medicaments on periapical MMP-8 levels were determined by immunofluorometric assay (IFMA) in periapical tissue fluid samples taken from the distal root canal in the first and second sessions.
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Clinical healing according to presence of clinical symptoms
Timeframe: 12 months
Periapical healing according to change in amount of root hard tissues
Timeframe: 12 months
MMP-8 levels from periapical tissue fluid samples
Timeframe: 14 day