Before revision: Working off of this premise, later claims were made that: "the length of the periodontal membrane attachment of the abutment tooth should be at least one half to two thirds of that of its normal root attachment".Tylman SD, Tylman SG.
After revision: Working from this premise, later claims were made that: "the length of the periodontal membrane attachment of the abutment tooth should be at least one half to two thirds of that of its normal root attachment".Tylman SD, Tylman SG.