Which of the following is a limitation of the traditional G.V. Black cavity classification when used with modern adhesive restorative materials?
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Correct answer: It over-extends preparations, being made for non-adhesive materials
Because Black’s design was based on materials requiring mechanical retention (like amalgam), it often leads to removal of more tooth structure than necessary when used with modern adhesive materials, reducing conservation.
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More Cavity Design and Classification questions
- What is meant by the “retention form” in cavity preparation design?
- Which class of cavity is most likely to require a matrix band and wedge for proper restoration of proximal contact and contour?
- Decay found on the incisal edge of a worn canine tooth (without other surfaces involved) corresponds to which class?
- Which design principle ensures that the prepared cavity resists displacement or fracture when the restoration is loaded during chewing?
- In modern conservative dentistry, what is a criticism of strictly following classical cavity designs derived from Black’s principles?
- Which classification system (by number of surfaces involved) defines a cavity that affects three or more tooth surfaces?