Tooth discoloration induced by dental materials

Area of Science:

• Dentistry
• Endodontics
• Dental Materials Science

Background:

• Tooth discoloration is a common concern following endodontic treatment.
• Dental materials used in root canal therapy can contribute to aesthetic changes.

Purpose of the Study:

• To investigate the in vitro staining potential of various dental materials used in endodontics.
• To assess the degree of tooth discoloration caused by different filling materials over a six-month period.

Main Methods:

• Extracted human premolars were used for this in vitro study.
• Original tooth color was recorded, followed by the introduction of ten different dental materials into the pulp cavities.
• Tooth color was visually assessed at regular intervals for six months.

Main Results:

• Durelon, Fuji ionomer, Fletcher's cement, and zinc phosphate cement did not cause significant tooth discoloration.
• Cavit, Dycal, gutta-percha, and IRM resulted in mild tooth staining.
• AH26-silver free and Duo Percha led to moderate tooth discoloration.

Conclusions:

• The choice of dental material significantly impacts the risk of tooth discoloration post-endodontic treatment.
• AH26-silver free and Duo Percha are associated with a higher risk of moderate tooth staining.
• Several materials, including Durelon and Fuji ionomer, demonstrated minimal to no discoloration potential.