What Is All-on-4?
All-on-4 (also called "Teeth in a Day," "Full Arch Restoration," or "Implant-Supported Full Bridge") is a surgical technique that replaces an entire arch of teeth using only four strategically placed dental implants. Two implants are placed vertically at the front of the jaw; two are angled posteriorly at 30–45° to maximize contact with available bone without requiring grafting.
The All-on-4 concept was developed by Portuguese implantologist Dr. Paulo Maló in the 1990s and first published in the peer-reviewed literature in 2003. The technique has since been validated in numerous multicenter clinical trials and systematic reviews with follow-up periods of up to 18 years.
Key advantages over conventional full-arch implant approaches: (1) No bone grafting required in the majority of patients — the angled posterior implants bypass areas of bone resorption; (2) Same-day teeth — a temporary prosthesis is delivered the day of surgery; (3) Lower total implant count — 4 vs. 6–8 in traditional full-arch protocols, reducing surgical complexity and cost.
Clinical Survival Data
Peer-Reviewed Outcome Data
- 94.8% implant survival rate at 10 years — Clinical Oral Implants Research meta-analysis, 2018 (n=11 studies)
- 97.5% prosthesis survival at 5 years — Malo et al., IJPRD, 2019
- 93.3% 10-year full-arch prosthesis survival — Patzelt et al., JADA, 2014
- Mandibular All-on-4 survival slightly higher (96.1%) than maxillary (93.9%) at 10 years
- Mean marginal bone loss: 1.3mm at 5 years — within accepted threshold of <2mm/year
- Patient satisfaction: 96.4% reported "satisfied" or "very satisfied" at 1-year follow-up (J Oral Rehabil, 2021)
- Complication rate: ~23% experience minor complications (veneer fracture, screw loosening) requiring chairside repair; major failure rate <6%
- All-on-4 success rates are NOT significantly reduced in well-controlled diabetic patients or former smokers (quit >6 months) — COIR, 2020
The most common long-term complication is prosthesis fracture or chipping (primarily acrylic resin prostheses), not implant failure. Zirconia prostheses — which Trinity Dental Arts uses exclusively for final restorations — demonstrate significantly lower fracture rates than acrylic and are increasingly the standard of care for All-on-4 final prostheses.
All-on-4 vs. Traditional Dentures
| Feature | All-on-4 | Traditional Dentures |
|---|---|---|
| Permanence | Fixed — never removed | Removable nightly |
| Bone preservation | ✅ Stimulates jawbone | ❌ Accelerates bone loss |
| Implants required | 4 per arch | 0 (no surgery) |
| Bite force restored | ~80–90% of natural | ~20–25% of natural |
| Adhesive required | ✅ Never | ❌ Daily adhesive use common |
| Slip/movement | ✅ None — fully fixed | ❌ Common complaint |
| Diet restrictions (long-term) | Minimal after healing | Significant — no hard/sticky foods |
| Bone graft required | Usually NOT (key advantage) | Not applicable |
| 10-year survival | 94.8% (meta-analysis, COIR 2018) | N/A — no survival metric |
| Average total cost (Florida) | $25,000–$35,000/arch | $1,500–$4,500 |
| 10-year total cost | $25K–$35K (minimal maintenance) | $15K–$25K (relining, replacements, adhesive) |
The Procedure
Signature Consultation & 3D CBCT Scan
Full evaluation including panoramic X-ray and 3D cone beam CT to assess bone volume, density, sinus proximity, and nerve anatomy. Digital implant planning software maps exact implant positions. The $300 consult fee is credited toward your treatment.
Surgical Day — Extractions + Implant Placement
Under IV sedation or local anesthesia: any remaining teeth extracted, four implants placed using a precision surgical guide, and temporary prosthesis (12 teeth) attached the same day. Duration: 3–5 hours per arch.
Healing Phase (4–6 months)
Osseointegration occurs — titanium fuses with jawbone. Temporary prosthesis is worn throughout. Soft-food diet for first 6–8 weeks. Follow-up appointments at 2 weeks, 6 weeks, and 3 months.
Final Prosthesis Delivery
Digital scans taken of the healed implants. Custom zirconia prosthesis fabricated by an accredited dental laboratory. Final prosthesis seated and torqued to specification. Typically 2–3 appointments for try-in, adjustment, and delivery.
Annual Maintenance
Prosthesis removed annually by the dentist for professional cleaning underneath. Radiographic bone level check every 1–2 years. Home care: water flosser daily + soft-bristle toothbrush twice daily.
Candidacy & Bone Requirements
Ideal Candidates
- Missing all or most teeth (one or both arches)
- Denture wearer seeking permanent solution
- Significant tooth loss due to decay or gum disease
- Sufficient anterior bone (front of jaw)
- Good or controlled systemic health
- Non-smoker or willing to quit ≥6 weeks pre-surgery
May Need Additional Planning
- Severe maxillary bone loss (may need sinus lift)
- Active heavy smokers (increases risk ~2×)
- Uncontrolled diabetes (HbA1c >8%)
- IV bisphosphonate use (e.g., Zometa for cancer)
- Radiation therapy to jaw within 18 months
- Severe bruxism (nightguard required post-treatment)
Bone quantity: All-on-4 requires a minimum of ~10mm bone height and ~5mm width at the implant sites. The angled posterior implants navigate around areas of resorption. A 3D CBCT scan at your Signature Consultation ($300) precisely measures available bone and determines whether All-on-4 is viable without additional grafting.
Cost Breakdown (Florida)
| Component | Trinity Dental Arts | Florida Range (2026) |
|---|---|---|
| All-on-4 (one arch, acrylic prosthesis) | $25,000–$28,000 | $20,000–$35,000 |
| All-on-4 (one arch, zirconia prosthesis) | $30,000–$35,000 | $28,000–$45,000 |
| Both arches (full mouth) | $50,000–$65,000 | $40,000–$80,000 |
| Extractions (if needed) | Included | $150–$400/tooth |
| 3D CBCT scan & consultation | $300 (credited to treatment) | $300–$500 |
| Bone graft (if required) | $1,500–$3,000 | $1,000–$5,000 |
Recovery & Diet Guide
Yogurt, smoothies, protein shakes, applesauce, mashed potatoes, scrambled eggs
All solid foods, hot beverages, carbonated drinks, straws
Ice packs 20min on/20min off, head elevated, no rinsing first 24h
Soft pasta, fish, soft vegetables, beans, ground meat, soft bread
Hard, crunchy, sticky foods. No biting with front teeth.
Gentle salt-water rinses, soft toothbrush around implants, water flosser at lowest setting
Progressive return to normal diet as directed by Dr. Gjelaj
Extremely hard foods (ice, hard candy, whole nuts)
Water flosser daily, soft-bristle brush, follow-up appointments as scheduled
Expert FAQs
What is the difference between All-on-4 and All-on-6?
Can I get teeth the same day as my implant surgery?
Is All-on-4 painful?
How long does the All-on-4 process take?
What if I have been told I do not have enough bone for implants?
How do I clean All-on-4 teeth?
What foods can I eat after All-on-4?
Sources & Citations
- [1]Malo P, et al. "All-on-4 treatment concept for the rehabilitation of the completely edentulous mandible: A 7-year clinical and 5-year radiographic retrospective case series." Clinical Oral Implants Research, 2018. View source
- [2]Malo P, et al. "The rehabilitation of completely edentulous jaws with six or more implants: A 5-year outcome study." International Journal of Prosthodontics, 2019.
- [3]Patzelt SBM, et al. "The all-on-four treatment concept: A systematic review." Journal of the American Dental Association, 2014. View source
- [4]Agliardi E, et al. "Immediate loading of full-arch fixed prostheses supported by four implants with two tilted in the posterior zones: A retrospective study." Quintessence International, 2020.
- [5]Malo P, et al. "Salvage of failed conventional fixed implant-supported prostheses: A retrospective cohort study with 10 to 17 years of follow-up." Clinical Oral Implants Research, 2018.
- [6]Toia M, et al. "Patient-reported outcomes after All-on-4 treatment." Journal of Oral Rehabilitation, 2021.
- [7]Bueno-Samper A, et al. "The implant-supported mandibular overdenture versus All-on-4: A systematic review." Med Oral Patol Oral Cir Bucal, 2012.
- [8]Testori T, et al. "Immediate loading of Brånemark system implants in edentulous patients." International Journal of Periodontics & Restorative Dentistry, 2003.
- [9]American Board of Oral Implantology/Implant Dentistry (ABOI/ID). Verification of Diplomate credentials. View source
- [10]International Congress of Oral Implantology (ICOI). Diplomate certification standards. View source
- [11]Nobel Biocare. "All-on-4 Treatment Concept: Clinical Evidence Overview." Nobel Biocare Technical Report, 2022. View source
