finger-on-finger fulcrum

fin·ger-on-fin·ger ful·crum

(finggĕr finggĕr fulkrŭm)
Advanced intraoral stabilizing point in which finger of the nondominant hand serves as a rest for the dominant.
References in periodicals archive ?
Facilitated fulcrums are not just finger-on-finger fulcrums, since during a facilitated fulcrum the finger of the non-dominant hand is never placed on the occlusal surfaces of the teeth; it is placed in the mucobuccal fold (Figures 3-4).