Excessive heat during coronal polishing can result in which adverse effect?

• A. Gingival recession
• B. Pulpal irritation or damage
• C. Tooth discoloration
• D. Caries progression

Answer: (B)

Heat produced during coronal polishing can be transmitted to the dental pulp through dentin. The pulp is sensitive to temperature changes, and excessive heat can irritate it, leading to inflammation and potentially irreversible damage or necrosis if the heat is intense or prolonged. To prevent this, use cooling water, light pressure, and intermittent polishing with appropriate speed and abrasive, especially on thinner dentin or near the pulp. Gingival recession from polishing would require mechanical trauma to soft tissue rather than heat alone; tooth discoloration and caries progression are not direct effects of overheating during polishing.