Save the Tooth or Get an Implant?
an evidence-based decision aid
Modern endodontics and modern implant dentistry both achieve long-term survival in the 90% range. The honest answer isn't which has higher numbers on a chart — it's which is the right treatment for your specific tooth. This is the patient-facing decision framework, drawn from AAE position statements and the head-to-head outcome literature.
Factors that favor saving the tooth
If most of these apply, conventional root canal (or retreatment / apicoectomy) is usually the more appropriate first choice.
- Tooth is restorable — enough sound structure remains to hold a crown without a post-and-core compromise.
- No vertical root fracture (the one absolute contraindication to endodontic treatment).
- Periodontal support is intact — pocket depths <5 mm around the tooth.
- Adequate inter-occlusal space without major occlusal trauma.
- Tooth is in the esthetic zone where natural emergence and gingival contour matter.
- Patient is young — preserving alveolar bone for later life is valuable.
- Diabetes is uncontrolled, patient is on bisphosphonates, or is a heavy smoker — these reduce implant success and favor preserving the natural tooth.
Factors that favor extraction and implant
If most of these apply, an implant is usually the more durable long-term answer.
- Vertical root fracture or severe internal/external root resorption.
- Tooth is structurally non-restorable — caries or fracture extends well below the bone.
- Failed root canal that has already been retreated unsuccessfully, with apicoectomy not feasible.
- Active, advanced periodontal disease at the tooth with bone loss past the apex.
- Generalized periodontitis is well-controlled elsewhere — implants do well when home care is excellent.
- Adequate bone volume present (or augmentable with grafting).
- Patient prefers to be 'done' with this tooth and has accepted the time, cost, and surgical phase of an implant.
Three common myths that distort the decision
Patients are routinely told things about this choice that aren't supported by the evidence.
"Implants last forever, root canals fail."
Long-term survival of implants and well-done root canals is comparable. Implants have their own failure modes — peri-implantitis affects roughly 20% of implants at 10 years, and fractured implant components can be difficult or impossible to repair.
"You'll need a root canal again anyway, so just pull it."
First-time root canals have 86–93% 10-year survival. Retreatment of a failed root canal also has roughly 80% success, and apicoectomy adds another option. Most teeth that have one root canal do not need a second intervention.
"An implant is more conservative."
An implant by definition requires removing the natural tooth. The AAE position is that preserving the natural tooth is the more conservative option when the tooth is restorable and endodontic treatment is well-indicated.
What this actually costs over a lifetime
Comparing single procedures misses the picture. Both options carry long-term restorative responsibilities.
- Root canal + crown: typical upfront cost $2,500–$4,500. Crown may need replacement once at 15–20 years (~$1,500–$2,500). If the root canal later fails, retreatment or apicoectomy adds ~$1,500–$2,500.
- Implant + crown: typical upfront cost $4,500–$7,000+ (more with bone grafting). Implant crown typically replaced once at 10–15 years (~$2,000–$3,000). Peri-implantitis treatment, if it develops, adds variable cost.
- Cost shift over a 20–30 year horizon: often closer than the upfront difference suggests. Insurance covers root canal and crown more reliably than implant therapy, which is frequently a major out-of-pocket expense.
- We give you a written cost estimate for both options before any treatment begins — you should never make this decision without knowing the full numbers.
Frequently asked questions
What does the AAE say about root canal vs. implant?
The AAE's Position Statement on Implants is unambiguous: 'Both endodontic therapy and dental implants are highly successful, and clinicians should make treatment decisions based on factors other than success rates of the two procedures.' The position explicitly cautions against extracting restorable teeth in favor of implants on the grounds that implants are 'better' — they aren't categorically better; they're different.
Which lasts longer — a root canal or an implant?
In long-term outcome studies, both have approximately 90% survival at 10 years. The honest answer is that both can last for decades when well-indicated and well-executed; both can fail when poorly indicated, poorly executed, or poorly maintained. Comparing average survival numbers across all cases hides the fact that the right treatment for the right tooth dramatically outperforms the wrong treatment for the same tooth.
If I have a root canal and it fails, can I still get an implant?
Yes — failed root canals usually leave enough bone for an implant after the tooth is extracted, sometimes with a small graft. Saving the tooth first does not eliminate the implant as a backup plan. The reverse is not true: once a tooth is extracted for an implant, you cannot get the natural tooth back.
Are implants safer for diabetic patients?
No — the opposite, when diabetes is uncontrolled. Poorly controlled diabetes (HbA1c >8%) is associated with higher implant failure rates and slower osseointegration. For uncontrolled-diabetes patients, preserving the natural tooth is often the safer choice. Well-controlled diabetes is not a major implant contraindication.
What about bisphosphonates / osteoporosis medications?
Patients on oral or IV bisphosphonates (alendronate, zoledronate) and similar antiresorptive drugs have an elevated risk of medication-related osteonecrosis of the jaw (MRONJ) following extraction and implant placement. The AAE Position Statement on MRONJ generally recommends preserving the natural tooth via endodontic treatment rather than extracting and placing an implant in these patients. Always disclose your full medication list before any oral surgery.
Will my insurance affect the decision?
It often does — PPO dental insurance typically covers a substantial portion of a root canal and crown, while implant coverage is limited or absent on many plans. We provide written cost estimates for both options before treatment so you can see what your share actually is.
Further reading
- · Root canal vs. extraction — the upstream decision on whether to save the tooth at all.
- · Root resection & hemisection — saving a multi-rooted molar when one root is the problem.
- · Apicoectomy — surgical option when conventional retreatment isn't feasible.
- · Saving natural teeth — why it still matters.
Want an honest second opinion?
Dr. Kung specializes in saving natural teeth — but is also a graduate of implant-focused programs and refers openly to local periodontists and oral surgeons when an implant is genuinely the better choice. If you've been told a tooth needs to come out, a second-opinion consultation will give you the AAE-aligned framework, your own CBCT (if needed), and a clear written comparison of both paths.