A 65-year-old patient with diabetes, minor bone loss, a highest probing depth of 6 mm, furcation involvement of 2, and no mobility presents for periodontal evaluation. What is his periodontal Stage and Grade?

A 65-year-old patient with diabetes, minor bone loss, a highest probing depth of 6 mm, furcation involvement of 2, and no mobility presents for periodontal evaluation. What is his periodontal Stage and Grade?

• A. Stage II, Grade B
• B. Stage II, Grade A
• C. Stage III, Grade B
• D. Stage I, Grade B

Answer: (A)

In this classification, you first determine the extent and severity of the disease (Stage) and then the rate of progression with systemic factors (Grade). Stage looks at how much supporting bone is lost and how deep the pockets are, along with features like furcation involvement and mobility. Grade estimates how fast the disease tends to progress, taking into account systemic conditions such as diabetes. Here, the patient has probing depths up to 6 mm and furcation involvement, but only minor bone loss and no mobility. A 6 mm pocket depth with furcation involvement signals more than initial gingivitis or early periodontal changes, and the furcation involvement supports a Stage II pattern. Stage II encompasses moderate attachment and bone loss with pocketing in the 5–6 mm range and furcation involvement, but not the more severe bone loss, vertical defects, or tooth loss that define Stage III or IV. Mobility is not present, which also keeps it from reaching the higher stages. For Grade, the presence of diabetes acts as a systemic modifier that can influence progression. Without indications of poor glycemic control or smoking, the patient’s expected progression falls into a moderate category, which corresponds to Grade B. If diabetes were poorly controlled or smoking were present, the grade would be higher (Grade C). So the best fit is Stage II, Grade B: moderate severity with a moderate rate of progression influenced by the systemic factor (diabetes) but not indicating rapid progression.

In this classification, you first determine the extent and severity of the disease (Stage) and then the rate of progression with systemic factors (Grade). Stage looks at how much supporting bone is lost and how deep the pockets are, along with features like furcation involvement and mobility. Grade estimates how fast the disease tends to progress, taking into account systemic conditions such as diabetes.

Here, the patient has probing depths up to 6 mm and furcation involvement, but only minor bone loss and no mobility. A 6 mm pocket depth with furcation involvement signals more than initial gingivitis or early periodontal changes, and the furcation involvement supports a Stage II pattern. Stage II encompasses moderate attachment and bone loss with pocketing in the 5–6 mm range and furcation involvement, but not the more severe bone loss, vertical defects, or tooth loss that define Stage III or IV. Mobility is not present, which also keeps it from reaching the higher stages.

For Grade, the presence of diabetes acts as a systemic modifier that can influence progression. Without indications of poor glycemic control or smoking, the patient’s expected progression falls into a moderate category, which corresponds to Grade B. If diabetes were poorly controlled or smoking were present, the grade would be higher (Grade C).

So the best fit is Stage II, Grade B: moderate severity with a moderate rate of progression influenced by the systemic factor (diabetes) but not indicating rapid progression.