Less than 30% of the sites on teeth exhibit periodontitis, and interdental attachment loss is at least 5 millimetres with radiographic evidence of bone loss extending at least to the middle third of the root with vertical bone loss of at least 3 millimetres, probing depths of at least 6 millimetres moderate ridge defect, and furcation classification of II-III. There is radiographic evidence of clinical attachment or bone loss of less than 2 millimetres over the last five years, biofilm is contributing to the disease status, patient smokes less than 10 cigarettes daily and may be diabetic but exhibits HbA1c levels below 7%.

Less than 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 radiographic evidence of clinical attachment or bone loss of less than 2 millimeters over the last five years, biofilm is contributing to the disease status, patient smokes less than 10 cigarettes daily and may be diabetic but exhibits HbA1c levels below 7%.