calculus bridge

cal·cu·lus bridge

(kal-kyū'lŭs brij)
Colloq. term for dental calculus that has accreted such that it forms an outer layer that completely covers the teeth and interdental spaces.
References in periodicals archive ?
"We removed calculus bridges, saw blown out molars, abscesses galore, and our dental team extracted 800 teeth.
On a few occasions, young patients had calculus bridges present on the lingual of their mandibular anterior teeth.