All-On-4™

What is AllOn4™?

The Allon4™ technique is based on the founder of dental implants, Professor Bränemark’s, method of using just 4 implants to support a full set of teeth. From the 1960’s onwards the technique has been refined and the Allon4™ technique as we know today was refined and marketed globally by Professor Palo Malo in Lisbon, Portugal. He has built an entire hospital devoted to performing this technique. The procedure enables people who are either missing all of their teeth, or have broken/failing teeth, to have a bridge with 12 teeth fixed to 4 implants.

all-on-four AO4GHBridgeMirror
 Allon4™ Concept  Actual Upper Allon4™ Bridge

 

The process firstly involves a planning phase where we obtain 3-Dimensional bone scans to assess the volume of bone present. A mock-up of the final set of teeth is then made with your input as to colour/shape/size of teeth. This is tried in and only once you are happy with the look of the teeth, are we ready to proceed. Day 1 is surgery day where any remaining teeth are removed if necessary and 4 titanium implants placed. Impressions are taken and you head home for the day to rest. Day 2 is when we try in the bridge and teeth to make any final minor adjustments as required. On day 3 the final bridge is screwed in to the implants and the Allon4™ process is complete. In order to allow the implants to bond to your bone it is very important that you maintain a soft diet for the first 3 months after surgery. After that time however you can confidently chew steaks and bite into apples again.

The advantages of this technique are:

  • By angling the two back implants we avoid the need for invasive sinus grafting surgery.
  • The process was designed to be cost effective as it only requires 4 implants to support the bridge. Conventionally this process may have required 8 to 10 implants plus bone grafting.
  • The speed of the process is very exciting for both us and patients. Imagine going from no teeth to a fixed set of teeth in 3 days!
  • Success rates of this procedure have been quoted in the dental literature to be 95-percent at 10 years after surgery.1 This is a greater success rate than anything else we can offer in dentistry!

The limitations of this technique are:

  • Due to the cantilever effect on the implants it is only possible to replace 12 missing teeth. If you are very keen to replace all 14 missing teeth in each jaw then additional implants will be required, although most people very happily manage with just 12.
  • It is important that you realise that these bridges won’t last forever, even though the implants might. Due to your increased chewing efficiency you will gain from your fixed teeth, over the years the acrylic will wear or chip. Like driving a luxury car, maintenance should be expected and after 5+ years in function the bridge may need some repair work or replacement. At this stage there are various options varying in strength from a new bridge with a custom made titanium framework, to a custom-made zirconia framework and individual porcelain crowns.

If you are interested in this treatment option do not hesitate to arrange a consultation with Dr Mallorie to discuss the process further.

  1. Malo, P., et al., A longitudinal study of the survival of Allon4 implants in the mandible with up to 10 years of follow-up. J Am Dent Assoc, 2011. 142(3): p. 310-20.

Allon4™ is subject to suitability and as with all surgical procedures, there are risks associated. 

Good oral hygiene is required, even for dental implants.  It is recommended you see a Hygienist for your regular active maintenance.

 

Allon4™ Before & After Case Study 1

AO4GHBefore AO4GHEdentulous
AO4GHAfter AO4GHBridgeInsertPalatal

Full Upper Arch Replacement

Diagnosis

  • Edentulous
  • Upper Denture, uncomfortable, inability to eat all foods

Treatment

  • Placement of 4 titantium implants
  • Placement of multi-unit abutments onto titanium implants
  • Insertion of fixed acrylic bridge onto 4 multi-unit abutments

Dental Surgeon: Dr Craig Mallorie

Restorative Dentist: Dr. George Paltoglou

Ceramist: Omega Ceramics

Restoration Type: Acrylic bridge of 12 teeth with metal frame (Allon4™)

 

Allon4™ Before & After Case Study 2

AO4Case2Before AO4Case2After
AO4Case2monthsAfter
3 days after surgery

 

 

3 months after surgery

Full Lower Arch Replacement

Diagnosis

  • Multiple missing teeth & a loose denture

Treatment

  • Placement of 4 titantium implants
  • Placement of multi-unit abutments onto titanium implants
  • Insertion of fixed acrylic bridge onto 4 multi-unit abutments

Dental Surgeon: Dr Craig Mallorie

Restorative Dentist: Dr. George Paltoglou

Ceramist: Omega Ceramics

Restoration Type: Acrylic bridge of 12 teeth (Allon4™)

 

APPOINTMENTS : (03) 9824 7722 - 1007 Malvern Road, Toorak Melbourne VIC 3142

Our Company

General Dentist

Cosmetic Dentist

Corrective Procedures

Contacting Paltoglou Dental

1007 Malvern Road
Toorak, Melbourne 3142
APPOINTMENTS 03 9824 7722

 

Join our newsletter for updates
& special offers.