Whole Tooth Column: Why "All-on-4" implants may not be enough
New Smiles Dental contributes a monthly column about dental health
By Dr. Nathan Doyel, New Smiles Dental
SHERWOOD, Ore. — Most patients researching full-arch implants — the procedure that replaces an entire upper or lower set of teeth — encounter the same term almost immediately: All-on-4. This language is everywhere. From Billboards and social media, to radio and search results on national dental chain websites. And it sounds like a solution: four implants, a full smile, done.
What most patients don't realize is that "All-on-4" is a brand name — not a clinical prescription. Four implants is the minimum the procedure was built around, not necessarily what's optimal for a given patient. It matters enormously if a provider treats everyone as having a one-size-fits-all solution.
The problem with an assumed standard
A full-arch restoration is one of the most complex procedures in implant dentistry. It requires careful evaluation of the patient’s:
- Health condition and medications
- Bone quantity and quality
- Bite forces
- Anatomy
When each factor is assessed — the way board-certified Implant Specialists are trained to do — the answer isn't always four posts.
Here's the clinical reality: the forces your jaw exerts on an implant-supported arch are significant, and they don't let up over time. Every time you chew, those forces distribute across the posts supporting your restoration. Fewer posts mean each one absorbs more stress. Over years and decades, that imbalance can contribute to the increased rate of bone loss, implant failure and mechanical failure of the restoration. If and when one post fails, the percentage of force the remaining posts must absorb on one side of the mouth is suddenly at a steep imbalance.
More posts, placed strategically, distribute that load more evenly. This isn't a sales pitch — it's physics.
What individualized planning looks like
At New Smiles, the majority of our full-arch patients receive six implant posts per arch. For some patients, eight is appropriate. Four-post cases are rare.
The difference between a provider who always places four and one who evaluates each case individually often comes down to training. Earning Diplomate status through the American Board of Oral Implantology — the credential held by both of our Implant Specialists — requires placing and documenting hundreds of cases, submitting them for peer review, and passing written and in-person examinations. It is one of the most rigorous voluntary credentials in implant dentistry, and it exists because this level of care demands more than minimum training.
What to ask before you commit
If you're exploring full-arch restoration, these questions are worth asking any provider you consult:
- How do you determine the number of implants I need — and what factors influence that decision?
- What does your planning process look like before surgery?
- Can you walk me through cases where you've placed more than four posts, and why?
A provider who treats the number of implants as fixed before they've evaluated your health, your bone, your bite, and your anatomy, may be offering you a product rather than a treatment plan. Those are different things, and you deserve to know which one you're getting.
The goal isn't the minimum
The outcome of dental implants depends on decisions made long before surgery begins — the evaluation of your health, medications and your medical history, the planning, the imaging, and the honest evaluation of what your jaw needs. At New Smiles, our standard isn't four implants. It's whatever gives you the strongest, most stable foundation for the decades ahead.
New Smiles Dental is located at 17680 SW Handley St #101 in Sherwood. To schedule a complimentary implant consultation, call (503) 925-9595.
The Sherwood Sun
