[Subtotal vital pulp extirpation using different medical preparations (experimental morphological research)]

Area of Science:

• Endodontics
• Dental Materials Science
• Regenerative Dentistry

Background:

• Vital pulp extirpation is a dental procedure requiring effective filling materials.
• Calcium hydroxide has been widely used, but its efficacy in forming biologic barriers is debated.
• The need for advanced materials promoting faster tissue regeneration is critical.

Purpose of the Study:

• To compare the efficacy of root canal filling materials containing calcium hydroxide and potassium nitrate.
• To evaluate the formation of a biologic barrier at the dental root apex.
• To assess the recovery rate of pulp stump and periapical tissues.

Main Methods:

• Subtotal vital pulp extirpation was performed on 12 green monkey teeth.
• Teeth were filled with materials containing either calcium hydroxide or potassium nitrate.
• Histological analysis was conducted on the 90th day to assess tissue reactions.

Main Results:

• Potassium nitrate-containing material significantly induced secondary cement formation, creating a biologic barrier at the root apex.
• Calcium hydroxide-containing material did not achieve similar barrier formation.
• Faster recovery of structural integrity in pulp stump and periapical tissues was observed with potassium nitrate.

Conclusions:

• Potassium nitrate is superior to calcium hydroxide for promoting biologic barrier formation after vital pulp extirpation.
• Potassium nitrate facilitates quicker healing and tissue regeneration in endodontic procedures.
• These findings suggest potassium nitrate as a promising agent for enhancing root canal treatment outcomes.