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Basal Implants

Basal implants are the most advanced implants, successful for any condition of bone. Basal implants can be used on patients with any bone density and any bone volume. Basal implants engage the highly dense cortical bone which has least propensity for resorption. Basal bone is present in everyone, despite severe bone loss due to gum disease or loss of teeth. As such, they are highly recommended for patients who are in need of bone grafts and sinus lift.

There are no absolute contraindications for basal implants.

 

Basal implants are very successful in the following conditions:

  • less bone volume needing bone grafts and sinus lift
  • less bone density,
  • gum disease and infected teeth,
  • smokers,
  • and regular bone which will eventually shrink with time.

How can Basal Implants be placed in deficient bone without bone grafts and sinus lift

To understand how Basal implants are able to avoid bone grafts and sinus lift we need to understand basal bone.

Bone maintains its shape, as long as there is function associated with it. The alveolar bone appears and disappears with the presence of teeth.  In contrast, the basal bone is maintained by the stimulus of the muscles inserted into it. These muscles always maintain the form, shape and density of the basal bone. The bone density is very high where muscles are inserted on the bone surface. This bone is very resistant to resorption and infection.

Any implant engaging the cortex of basal bone is termed “Basal Implant”.

Conventional Implants Vs Basal Implants

Conventional implants

  • Conventional implants or axial implants are placed through the 1st cortex and then their tip rests in the spongy bone.
  • The implant requires adequate density and volume of bone. For inadequate bone, bone grafting and sinus lift is needed.
  • After few years, crestal bone loss results in loss of cortical bone support and loss of implant.
  • Simple to place in the bone and does not need extensive training.

Basal implants

  • Basal implants are inserted through the 1st cortex and then through the 2nd cortex, with the threads of the tip actively engaging the 2nd cortex.
  • As the implant engages cortex of basal bone it is not dependent on bone density or bone volume.
  • After few years despite bone loss, the implant is firmly engaged in the basal bone.
  • Placing the Basal implants needs extensive training and knowledge of anatomy. It is technique sensitive.

Loss of bone density

Loss of bone height

Loss of bone density

Loss of bone height

Which are the best Basal Implants

Classification of implants being used as Basal Implants

Implants engaging cortex of basal bone can be classified based on the design of the implant and the surface of implant.

  1. Implant design
    • Multipiece implant - mechanically weak implants
    • One piece implant - strongest implants
  2. Implant surface
    • Rough surface - susceptible to peri-implantitis and sinusitis. Not recommended in gum disease.
    • Polished surface - peri-implantitis resistant and very safe when engaging the sinus floor

Basal Implants with single piece design and smooth surface are the strongest and safest implants.

Many options for immediate implant placement and implant loading in the upper jaw are available. Today sinus lift is a time-and money-consuming procedure. Today, the application of traditional implants connected to sinus lifting procedures needs a good reason because minimally invasive options are available and should be a part of the complete information to a well-informed patient.

  • Extraction of all diseased teeth, curettage of granulation tissue, and preparation of the gingiva,
  • Bone grafting after two months, with an additional surgery at the donor site,
  • After six months of bone graft healing, insertion of the implants,/li>
  • After another six months of implant healing, placement of the crowns.
  • Sometimes patients are subjected to additional periodontal surgery.

Patients desirous of getting fixed teeth have had to wear dentures for another year when treated with Axial implants.

Permanent teeth in 3 daysTM is the most advanced technique allowing patients to get immediate fixed bridge on basal implants.

 

The above patient with little bone height in the upper jaw and in the lower jaw underwent full mouth rehabilitation with Permanent teeth in 3 DaysTM technique. 

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