FIELD: medicine; stomatology. SUBSTANCE: bioretractor comprises base with a cap on mandible incisors, palatal clasp, fixing hooks and power members. Besides, it has two interjaw springs whose lower arms are fixed in the cap while the upper ones, in flat for upper jawbone incisors. The power members are secured on the base. EFFECT: improved design. 3 dwg
Authors
Dates
1995-04-20—Published
1991-11-04—Filed