Calcium and hydroxide release from different pulp-capping materials

Area of Science:

• Biomaterials Science
• Dental Materials Research
• Restorative Dentistry

Background:

• Pulp-capping materials are crucial for preserving dental pulp vitality.
• Understanding ion release is key to evaluating material biocompatibility and efficacy.
• Hydro C, NuCap, Life, and Ultrablend Plus are commonly used pulp-capping agents.

Purpose of the Study:

• To quantitatively assess the release of calcium and hydroxide ions from four distinct pulp-capping materials.
• To compare the ion release profiles of Hydro C, NuCap, Life, and Ultrablend Plus over time.

Main Methods:

• Materials were placed in tubes and immersed in deionized water for up to 168 hours.
• Calcium ion release was measured using atomic absorption spectrophotometry.
• Hydroxide ion release was determined using a pH-meter.

Main Results:

• Ultrablend Plus exhibited the highest calcium ion release, with significant differences noted compared to Life and other materials at various time points.
• No hydroxide ion release was detected from Ultrablend Plus throughout the study.
• Significant differences in hydroxide ion release were observed among Hydro C, NuCap, and Life materials over time.

Conclusions:

• All tested pulp-capping materials, except Ultrablend Plus, released both calcium and hydroxide ions.
• Ultrablend Plus demonstrated a unique ion release profile, characterized by significant calcium release and absence of hydroxide release.
• Findings suggest differential biocompatibility and therapeutic potential among the evaluated pulp-capping agents.