To evaluate the effect of topical tetracycline and dexamethasone on periodontal and pulpal regeneration of avulsed permanent teeth after an observation period between 9-16 years.
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Number of teeth with periodontal regeneration
Timeframe: After a mean observation period of 12.9±2.4 years (one visit only)
Number of teeth with pulpal regeneration
Timeframe: After a mean observation period of 12.9±2.4 years (one visit only)