[Wetting of various restorative materials]

Area of Science:

• Dental Materials Science
• Biomaterials Engineering
• Oral Microbiology

Background:

• Plaque accumulation on dental restorations is influenced by material properties.
• Surface morphology and material-saliva-microorganism interactions are critical factors.
• The exact mechanisms driving varying plaque levels on different restorative materials remain unclear.

Purpose of the Study:

• To investigate the wetting behavior of various dental restorative materials using natural saliva.
• To correlate in vitro wetting characteristics with clinical observations of plaque accumulation.
• To elucidate the role of interface phenomena in restorative material plaque adhesion.

Main Methods:

• Utilized a digital tensiometer to measure the degree of wetting.
• Tested a range of restorative materials including Dentacolor, dental porcelain, electrolytic gold, and non-precious metals.
• Compared in vitro wetting data with existing clinical data on plaque accumulation.

Main Results:

• Dentacolor demonstrated the highest degree of wetting with natural saliva.
• Dental porcelain and electrolytic gold showed intermediate wetting.
• Non-precious metals exhibited the lowest degrees of wetting among the tested materials.

Conclusions:

• Material wetting, influenced by saliva interaction, is a significant factor in plaque accumulation.
• Higher wetting degrees correlate with potentially lower plaque adhesion.
• Findings provide insights into the clinical performance of restorative materials regarding plaque resistance.