Well-controlled diabetes is not a contraindication to dental implants. Uncontrolled diabetes is. The difference comes down to blood-glucose control, measured primarily by hemoglobin A1c (HbA1c) — the three-month average of your blood sugar.

How Diabetes Affects Implant Outcomes

High blood glucose impairs almost every step of implant success:

Delayed wound healing after surgery
Impaired osseointegration (the bone-to-implant bond)
Reduced immune response to bacterial infection
Elevated risk of peri-implantitis over the implant’s lifetime
Microvascular damage that reduces oxygen/nutrient delivery to healing tissues

HbA1c Thresholds

HbA1c < 7.0% — well controlled. Implant outcomes are essentially equivalent to non-diabetic patients in most studies.
HbA1c 7.0-8.0% — acceptable control. Modified protocols are often used; outcomes are slightly compromised but still good.
HbA1c > 8.0% — poorly controlled. We generally defer elective implant surgery until glucose control improves.
HbA1c > 9.0% — implant surgery is strongly inadvisable in the elective setting.

Pre-Surgical Preparation for Diabetic Patients

Recent HbA1c lab value (within 3 months)
Coordination with your primary care physician or endocrinologist
Morning appointments when glucose is typically more stable
Normal medication and meal schedule — do not fast before dental surgery if you take insulin or oral diabetes medications
Blood glucose check before surgery begins

Modified Clinical Protocols

Prophylactic antibiotics pre- and post-operatively
Chlorhexidine rinse before surgery to reduce oral bacterial load
Atraumatic surgical technique (smaller flaps, digitally-guided placement)
Slightly extended healing time before loading the implant
More frequent maintenance visits (every 3 months) post-restoration

Type 1 vs. Type 2 Diabetes

The implant-relevant question is not which type you have but how well it is controlled. Well-controlled type 1 patients often do as well as non-diabetic patients. Poorly controlled type 2 patients do worse regardless of classification.

What to Discuss With Your Dentist

Your most recent HbA1c
Current medications and insulin regimen
Any diabetes-related complications (neuropathy, retinopathy, kidney issues)
Other conditions treated with medications that affect bone (bisphosphonates, steroids)

Request a consultation to discuss your case.

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