Which of the following is a reported outcome when resin-containing Ca(OH)2 is used on uninfected pulp?

• A. Uncomplicated healing
• B. Necrosis
• C. Chronic inflammation
• D. Pulpal abscess

Answer: (A)

When the pulp starts out healthy, resin-containing calcium hydroxide tends to support healing rather than causing damage. The highly alkaline calcium hydroxide helps neutralize residual bacteria and stimulates the formation of reparative dentin, creating a dentin bridge that seals off the pulp from irritation. The resin component enhances the seal at the dentin surface, reducing microleakage and protecting the pulp from further irritants. With an uninfected pulp, this combination promotes vitality and uncomplicated healing. Signs like necrosis, chronic inflammation, or a pulpal abscess would indicate that the pulp was damaged or infected, or that the material irritated the tissue—situations not expected when the pulp is healthy and the material is applied correctly.