| At least 30% of the sites on teeth exhibit periodontitis, and interdental attachment loss is at least 5 millimeters with radiographic evidence of bone loss extending at least to the middle third of the root with vertical bone loss of at least 3 millimeters, probing depths of at least 6 millimeters moderate ridge defect, and furcation classification of II-III. There is no radiographic evidence of clinical attachment or bone loss over the last five years, heavy biofilm deposits are present, the patient is a nonsmoker, and there is no diagnosis of diabetes. |
