Bovine teeth as possible substitutes in the adhesion test

Area of Science:

• Biomaterials Science
• Dental Materials
• Adhesion Science

Background:

• Accurate adhesion testing is crucial for dental restorative materials.
• Human teeth are the standard for such tests, but their use presents ethical and practical challenges.
• Alternative substrates are needed to reliably mimic human tooth adhesion properties.

Purpose of the Study:

• To evaluate the suitability of bovine teeth as a substitute for human teeth in dental adhesion testing.
• To compare the adhesive strength of dental cements and composite resins to both human and bovine teeth.

Main Methods:

• Five dental cements and two composite resins were tested.
• Adhesive strength was measured on human teeth and bovine teeth.
• Comparisons were made for adhesion to enamel and different depths of dentin.

Main Results:

• No statistically significant difference in adhesion was found between human and bovine enamel and superficial dentin.
• Mean adhesive values were consistently slightly lower for bovine teeth compared to human teeth.
• Adhesion to bovine dentin decreased significantly with increasing depth.

Conclusions:

• Bovine teeth demonstrate potential as a viable substitute for human teeth in adhesion testing, particularly for enamel and superficial dentin.
• Care must be taken when assessing adhesion to deeper dentin layers, as bovine teeth show a marked decrease in strength.
• Further research may refine the use of bovine teeth to better approximate human dentin adhesion characteristics.