retentive fulcrum line

re·ten·tive ful·crum line

1. an imaginary line connecting the retentive points of clasp arms on retaining teeth adjacent to mucosa-borne denture bases;
2. an imaginary line connecting the retentive points of clasp arms, around which line the denture tends to rotate when subjected to forces such as the pull of sticky foods.

re·ten·tive ful·crum line

(rē-tentiv fulkrŭm līn)
1. Imaginary line connecting retentive points of clasp arms on retaining teeth adjacent to mucosa-borne denture bases.
2. Imaginary line connecting retentive points of clasp arms, around which line the denture tends to rotate when subjected to forces such as the pull of sticky foods.