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Ratio of the periodontal root surface area

# Ratio of the periodontal root surface area of the abutment teeth and the teeth to be replaced should be at least:
A. 1:1
B. 2:1
C. 1:2
D. 1:4


The correct answer is A. 1:1

According to Ante's law,  "Periodontal surface area of abutment teeth should be at least equal to the teeth replaced."

Ideal ratio is 2:1

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