Asymptomatic 7 mm Pocket in a Smoker With Poorly Controlled Diabetes

Stage III, Grade C.

Stage is set by severity and complexity, not by pocket depth alone:

• Clinical attachment loss at #30 is at least 7 mm (a 7 mm pocket with the margin at or near the CEJ).
• Radiographic bone loss reaches the middle third of the mesial root, with a Class I furcation.
• Those two findings alone place him in Stage III. He has lost four teeth, but none to periodontitis, so tooth loss does not move him to Stage IV; there is also no occlusal collapse, no ridge defect, and no need for complex rehabilitation.

Grade is set in two steps:

1. Primary criterion - radiographic bone loss divided by age: 40% / 58 years = 0.69, which sits in the Grade B band (0.25-1.0).
2. Risk-factor modifiers - smoking 10 or more cigarettes per day and HbA1c of 7.0% or higher are each Grade C modifiers. Either one alone shifts him up; he has both.

State both steps explicitly. Using only the bone-loss/age ratio would understate his risk and would justify a 6-month recall he cannot safely be kept on. The furcation is a stage-related complexity factor, not a grade factor, and it becomes decisive at the surgical decision point.

1. Medical consultation now. Write to his physician for a current HbA1c and confirmation of glycemic control before elective care is scheduled. A value persistently above roughly 8% predicts poor healing and rapid recurrence and belongs in the record before surgery is planned.
2. Step 1 therapy. Oral hygiene instruction, smoking-cessation referral (counseling plus pharmacotherapy, not advice alone), and full-mouth supragingival and subgingival instrumentation. Nothing here is a hopeless tooth; #30 is asymptomatic and its amalgam is intact, so no restorative work is indicated.
3. No antibiotics. There is no abscess and no systemic involvement. Systemic antibiotics do not improve the outcome of mechanical therapy in chronic periodontitis and would obscure the real endpoint, which is plaque control.
4. Re-evaluate at 6-8 weeks, not 4. Smokers and hyperglycemic patients heal slowly, and probing too early overstates residual depth and overstates the need for surgery.
5. Trigger for Step 3. At re-evaluation, residual probing depth of 6 mm or more with bleeding at #30 - compounded by the furcation - justifies choosing between surgical access and extraction. While the grade is uncontrolled, keep him on 3-month maintenance rather than 6.

Frame it as three options with explicit prognoses, not as a single recommendation.

Option 1 - continued nonsurgical maintenance at 3-month intervals. The tooth is currently asymptomatic and the furcation is only Class I, so retention is defensible. But a residual 6 mm bleeding pocket in a furcation, in a smoker with HbA1c above 8%, has a guarded long-term prognosis; the realistic outcome is slow loss of the furcation and possible abscess, not stability.

Option 2 - extraction and implant. Do not present an implant as the safe answer. Implants in smokers and in patients with poor glycemic control show higher failure and higher peri-implantitis rates, and his HbA1c and smoking would have to change first. Placing an implant now, in a patient unwilling to modify either, trades one compromised site for another.

Option 3 - extraction and a fixed or removable replacement if he declines both of the above.

Whichever he picks, the conversation is the deliverable: document the probing depths, the furcation, the stated risks of each option, his stated preference, and the fact that he declined surgical therapy. Offer to revisit the decision at each maintenance visit. Retaining the tooth against advice is his right; failing to record that the choice was informed is not defensible.