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Pulpal response to dental amalgams
Scandinavian Journal of Dental Research
|October 1, 1979
Summary
High-copper dental amalgams showed varying pulpal tissue responses compared to conventional amalgam. Most copper amalgams demonstrated similar or slightly increased pulpal reactions over time.
Area of Science:
- Dental Materials Science
- Biomaterials Research
- Restorative Dentistry
Background:
- Dental amalgam remains a widely used restorative material.
- Concerns exist regarding the biocompatibility of dental materials, including amalgams.
- Copper-containing amalgams are designed to improve mechanical properties and corrosion resistance.
Purpose of the Study:
- To compare the pulpal tissue reactions to dental amalgams with high copper content versus conventional amalgam.
- To evaluate the biocompatibility of different amalgam formulations in a primate model.
Main Methods:
- Unlined cavities were prepared in intact monkey teeth.
- Teeth were restored with either a conventional amalgam or one of three high-copper amalgams.
- Pulpal responses were assessed after 1 week, 1 month, and 2 months.
Main Results:
- After 1 week, two high-copper amalgams showed more pronounced pulpal reactions than conventional amalgam, while one showed similar reactions.
- After 1 and 2 months, only one high-copper amalgam consistently elicited more pronounced pulpal reactions compared to conventional amalgam.
Conclusions:
- Most high-copper dental amalgams exhibit comparable or only moderately increased pulpal tissue responses relative to conventional amalgam.
- The specific formulation of high-copper amalgam influences its pulpal biocompatibility.
- Long-term studies are essential for fully understanding the clinical implications of copper content in dental amalgams.