Cervico Mold

The Cervico Mold is an in-office tool used for the fabrication of the cervico healing abutments and impression posts aiming to the generation and accurate recording of a prosthetically and biologically ideal emergence and cervical profile.

It can also be used for the duplication of a modified healing abutment or temporary prosthesis to a duplicate impression post. It features 17 wells that can be used for all of the above purposes.

Tools of the Cervico Mold system:

• Mold Base
• Centered Silicone Insert
• Base screw driver

How it works

The top ring of the base carries a letter coding that corresponds to the shape and size of the well of the silicone insert.

The bottom ring of the base caries a number coding that corresponds to the VPI Prosthetic connection Insert installed into the base. (The VPI Prosthetic connection inserts are the elements used to make the mold compatible with the implant system you use. They are NOT implant analogs, instead they are components with unique features fabricated and distributed by VP Innovato Holdings Ltd.)

The top ring of the base, along with the silicone insert installed in a stable position within it, can rotate in relation to the bottom ring of the base. This allows the alignment of different wells of the silicone insert with different VPI Prosthetic connection Inserts installed into the base of the mold.

Cervical Shaped Wells

Anatomical shaped wells (12) that correspond in shape and dimensions to the anatomical tabs of the Cervico Guide carrying the same coding.

The aS, aM and aL tabs correspond to the cervical margin dimensions and shape of the crown of anterior teeth (Small / Medium /Large)

The pS, pM and pL tabs correspond to the cervical margin dimensions and shape of the crown of premolars (Small /Medium / Large)

The m1S, m1M and m1L tabs correspond to the cervical margin dimensions and shape of the crown of squared shape molars (Small / Medium /Large)

The m2S, m2M and m2L tabs correspond to the cervical margin dimensions and shape of the crown of elongated shape molars (Small / Medium /Large)

Cylindrical Shaped wells

Cylindrical shaped wells (4) that correspond in shape and dimensions with the cylindrical tabs of the Cervico Guide carrying the same coding.

The largest cylindrical well is called duplication well and is used during the impression post duplication process.

The wells c5, c6, c7, c8 are meant to be used for the production of cylindrical in shape healing abutments with diameters of 5, 6, 7 and 8 mm respectively.

Installation

The mold comprises 36 sockets that can receive the VPI Prosthetic connection inserts. These sockets are divided in four groups that allow the installation of the inserts in four different depths, ranging from 0 to 3 mm.

Sockets numbered 1-14 are all the same and allow the insert to be flash with the base. This is suitable for crestal or slightly supra-crestal surgical implant placement protocols. Temporary abutments with a shoulder height of 0.5 to 2mm should be used as cores.

Sockets numbered 15-28 are all the same and allow the insert to be 1 mm countersunk within the base. This is suitable for 1mm sub-crestal surgical implant placement protocols. Please notice that also the VPI inserts comprising an external hex connection must be installed into this group of sockets. Temporary abutments with a shoulder height of 1.5 to 3mm should be used as cores.

Sockets numbered 29-33 are all the same and allow the insert to be 2 mm countersunk within the base. This is suitable for 2mm sub-crestal surgical implant placement protocols. Temporary abutments with a shoulder height of 2.5 to 4mm should be used as cores.

Sockets numbered 34-36 are all the same and allow the insert to be 3 mm countersunk within the base. This is suitable for 3 mm sub-crestal surgical implant placement protocols. Temporary abutments with a shoulder height of 3.5 to 5mm should be used as cores.

Duplication Process

The Cervico Mold can be utilized for the duplication of the sub-gingival portion of a modified healing abutment or a temporary prosthesis to a duplicate impression post.

If modification of the sub-gingival portion of the cervico healing abutment has been initiated, the duplication process must be used.

Step 1: Coat the duplication well with vaseline and couple thread the modified healing abutment or temporary prosthesis.

Step 2: Fill the open space with clear silicone impression material.

Step 3: Let the silicone set for approximately 3-6 minutes according to manufacturer guidelines.

Step 4: Remove the modified healing abutment, or temporary prosthesis from the mold.

Step 5: Couple thread the core impression post.

Step 6: Fill the open space available with the suitable dental composite material.

Step 7: Light cure the composite material for 40 sec. Then, remove the customized impression post from the mold and light cure for additional 20 sec.

Attention! Once the duplication process is complete, remove the silicone from the well immediately.

The generated custom impression post is an exact duplicate of the modified healing abutment, or temporary prosthesis at least at its sub-gingival portion.

Basic Fabrication Process

Step 1: Couple thread the temporary abutment into the desired well, manually. The printed dot on the silicone insert is correlated to the orientation of the prosthetic connection of the VPI Prosthetic connection insert and thus to the one of the temporary abutment and implant.

Step 2: Fill in the open space with suitable dental composite material and light cure for 40 sec. In case of large size wells the space can be filled and light cured in two increments in order to ensure proper curing of the composite material.

Step 3: Unthread and remove the cervico healing abutment from the mold and light cure for additional 20 sec. Clean the well of the mold with a cotton tip soaked in alcohol.

Step 4: Secure the cervico healing abutment on the easy grip handle and proceed with polishing of the composite surface, using a micromotor. Utilize the polishing mop and polishing paste to smoothen the composite surface, at 10000 rpm.

Follow the same steps 1,2,3 utilizing a stock impression post for fabricating the custom duplicate impression post.