Polymer implantation in periodontic endodontic lesions. Two case reports.

A polymethylmethacrylate polymer was used in an attempt to fill periodontal osseous defects. Healing was within normal limits, probing depth and mobility were decreased, and there were no adverse post-operative sequelae. Although there were periapical radio-lucencies that appeared to be endodontic in origin, endodontic therapy did not result in osseous defect fill. The non-resorbable, radiopaque polymer particles appeared to become incorporated within the radiodense tissue of the osseous defects. The alveolar bone within the defects was seen to increase in radiopacity, consistent with osteogenesis.