Dental model of the upper and lower jaw to practice the technique of periostotomy surgery with opening and drainage of purulent focus. Simulations of the periostotomy treatment protocol (opening of a subperiosteal abscess): local anaesthesia; horizontal incision to the bone for the entire length of the infiltrate; peeling of the periosteum with a sickle-shaped smoothing rod; wound treatment with antiseptic solution; drainage with a rubber strip. Other structural features: the presence of an inflammatory infiltrate in the region of the teeth of the upper and lower jaws gingival fragments simulating subperiosteal abscess can be replaced with new, replaceable 28 teeth of the PD-NZ M28 series
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