How it works
The top ring of the Cervico Mold carries a letter coding that corresponds to the shape and size of the well of the silicone insert.
The bottom ring of the base has 36 sockets which accept the VPI Prosthetic connection inserts (VPI inserts). These sockets are divided in four groups that allow the installation of the VPI inserts in four different depths, ranging from 0mm (crestal implant placement) to -3mm (sub-crestal implant placement of -1mm, -2mm and -3mm). All the sockets of the same group have no difference to each other. The reason for providing many sockets of the same height is to allow the potential installation within the Cervico Mold of many different VPI inserts. This will allow the same mold to be functional with many different implant systems, as implants range in connection type and size.
The top ring of the Cervico Mold, along with the silicone insert installed in a stable position within it, can rotate in relation to the bottom ring of the Cervico Mold. This allows the alignment of different wells of the silicone insert with different VPI inserts installed into the bottom ring of the Cervico Mold.
What is a VPI prosthetic connection insert?
A VPI Prosthetic connection insert is a unit with innovative design that replicates the prosthetic connection and platform of a given implant. The innovative external design allows the installation of the VPI insert into the bottom ring of the Cervico Mold in only one functional orientation and a stable position while its internal design allows it in many occasions to be functional with multiple platform sizes of the same prosthetic connection. Each VPI insert is available with a retention screw that allows its safe coupling to the bottom ring of the Cervico Mold. A plethora of different VPI inserts are available in order to fulfil the clinical needs.
Fabrication process
Cervico healing abutment
Step 1
Couple thread the temporary abutment into the desired well, manually.
Step 2
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 3
Fill in the open space with suitable dental composite material and light cure for 40 sec.
Step 4
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 5
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 6
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.
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.
Modified Abutment
If modification of the sub-gingival portion of the cervico healing abutment has been initiated, the duplication process must be used.
Step 2
Coat the duplication well with vaseline and couple thread the modified healing abutment or temporary prosthesis.
Step 3
Fill the open space with clear silicone impression material.
Step 4
Let the silicone set for approximately 3-6 minutes according to manufacturer guidelines.
Step 5
Remove the modified healing abutment, or temporary prosthesis from the mold.
Step 6
Couple thread the core impression post.
Step 7
Fill the open space available with the suitable dental composite material.
Step 8
Light cure the composite material for 40 sec. Then, remove the customized impression post from the mold and light cure for additional 20 sec.
Modified Impression Post
The generated custom impression post is an exact duplicate of the modified healing abutment, or temporary prosthesis at least at its sub-gingival portion.
VPI Prosthetic Connection Inserts
A VPI Prosthetic connection insert is a unit with innovative design that replicates the prosthetic connection and platform of a given implant. The external design allows the installation of the insert into the base of the mold in only one functional orientation and a stable position. The internal design of the VPI Insert allows it in many occasions to be functional with multiple platform sizes of the same prosthetic connection. Each insert is available with a retention screw that allows its safe coupling to the mold. The insert has its item number and an arrow laser printed on its outer surface. A plethora of different VPI Inserts are available in order to fulfil the clinical needs. Please refer to the VPI Prosthetic connection inserts compatibility chart in order to determine the one that fits your needs.
Installation process
Identify the desired open socket of the mold and install the VPI insert by light pressure. The insert will be able to be installed if only you align the arrow of the insert to the triangular orientation mark of the base. Couple thread the insert to the underside of the mold utilizing the provided VPI Cervico 2mm Allen Screw driver and retention screw.