advanced fulcrum

ad·vanced ful·crum

(ad-vanst fulkrŭm)
Variation of an intraoral or extraoral finger rest used to gain access to root surfaces within deep periodontal pockets (e.g., modified intraoral, cross arch, opposite arch, finger-on-finger, and finger assist fulcrums).
References in periodicals archive ?
These findings support Nield-Gehrig's belief that maxillary molar teeth are especially difficult to treat with the standard intraoral fulcrum and often require advanced fulcrums.
Effects of 5 different finger rest positions on arm muscle activity during scaling by dental hygiene students
There are additional topics in this new edition, including advanced fulcrums, correct musculoskeletal positioning, consideration of repetitive strain injuries, air-polishing stain removal, and better preparation in periodontal assessments.
Fundamentals of Periodontal Instrumentation, 3rd ed
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