Twin Implant

“TWIN-IMPLANT by Di Giulio” method

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Thanks to the more recent technologies such as melt-titanium, stereo-lithography – this dental implant method enables us to resolve almost every case of edentulism (toothless) even in the event of heavy bone deficiency (thin, low, hollow for ample maxillary sinus which cannot be lifted up).

Implant execution

A multislice 128 CAT scan leads to a stereo-lithographic model of the patient’s bone structure. The model shows the bone thicknesses, especially convexities and concavities of the surface which are essential to the implant anchorage as primary and prompt block onto the bone. It is accurately designed by an implantologist following the stereo-lithographic model: it is made of two parallel bars united by pillars which bear the prosthesis. Made from melt-titanium, it is subject to an X-ray inspection and sterilization and then it is ready to be put in place around the bone.

Implant placement

Upon opening the gingival fibro mucosa the implant is placed, blocked onto the bone; afterwards the fibro mucosa is stitched. The operation takes little time and there is no need to perforate the bone, therefore topical anaesthesia with intravenous sedation is administered, inducing the patient feel good and relaxed.

Usability of the implant

As soon as it is placed, with a temporary prosthesis which is substituted after 20-30 days’ time with a final one.

Prompt anchorage of the implant

Prompt anchorage of the implant is due to millimetre accuracy while melting the two paired bars which are promptly clamped on convexities and concavities of the bone crest. The assembly of the two bars occurs during the operation as they – being separated – can overcome prominences and undercuts of the bone surface relevant for the stability and the clamping of the implant.

Distribution of the chewing forces

In the upper arcade the two bars, palatal and vestibular, are diverged and oriented the same way as the three roots of molars aimed to powerfully sustain the masticatory force of the antagonist teeth. The opponent, paired, parallel bars and their length itself help masticatory pressure to be equalized and released over an ample surface.

Implant Testing onto the stereo-lithographic model

as the Twin Implant is located outside and not inside the jawbone crest, the implantologist has a chance to test it on the stereo-lithographic model which faithfully reproduces the bone structure. It is possible to check over perfect contacts between the implant and the model by a sort of a rehearsal before the intervention and outside the mouth. It means that the intervention itself consists only of the placement of a perfectly made implant.
Testing includes several stages as follows:

1) the two bars – internal and external – are placed and assembled onto the stereo-lithographic model in order to check over their perfect connection.

2) they are X-rayed to be aware of the internal integrity of titanium melting process

3) check over perfectly paired pillars as support of the prosthesis

4) check over perfectly assembled crowns on the pillars

5) they are subject to strong extraction forces aimed to prove the validity of the primary anchorage as well as to compressive forces vertically and horizontally in order to check over the masticatory pressure which is to be equalized over the two bars.

“Di Giulio Twin Implant” as an alternative to endosseous implants even after their failure

if one or two screws do not osteo-integrate, the Twin implant, being made of titanium, is purposefully built to be placed even where the screws left osseous cavities.

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