General

Where can I purchase PD VitalOs Cement®?

To learn about the availability of PD VitalOs Cement® in your country please ask us directly by clicking here.

For other bone substitutes the weight is mentioned on the product. What is the weight of PD VitalOs Cement ?

One mililiter of PD VitalOs Cement weighs 2 grams. Nevertheless, it is the volume which is important to know when injecting the product in the site

What are the quantities available?

PD VitalOs Cement® is available in a syringe of 1ml (1cc). This quantity covers most of the uses (except some sinus lifts where a larger quantity may be needed).

Can I use the product remaining in the syringe after a first use?

If you use the second mixing tip you can expel the remaining product from the syringe. It can be used for another site on the same patient but not on another patient for evident reasons of potential cross-contamination.

Is PD VitalOs Cement® re-sterilizable?

PD VitalOs Cement® is not meant to be re-sterilized. The moisture would affect the properties of the pastes. PD VitalOs Cement® has been granted the CE mark as a single use product and should therefore never be re-sterilized..

Is there a specific use for the plug located in the blister of PD VitalOs Cement®?

This plug is soaked with ultra-pure water to ensure the required level of humidity for the pastes in the syringe. It should be discarded along with the packaging..

Which clinical study was performed to get the CE mark ?

Click here to read the summary of the "pre-market" clinical study.

Clinical / Technical

Should PD VitalOs Cement® be used with a membrane?

No membrane is needed when using PD VitalOs Cement®. This is due to the intrinsic mechanical stability of PD VitalOs Cement® (no risk of finding particles outside of the site) and to its compacity (no risk of ingrowth of soft tissue). This specificity reduces the costs and duration of the surgical procedures.

When PD VitalOs Cement is used as a membrane, what surface area can be covered this way ?

To make a membrane, the thickness of cement should be between 1 and 2 mm. This corresponds to a size of at least 25 x 25 mm.

PD VitalOs Cement® is a hard and compact material. Does it impair or prolong the formation of the new blood vessels?

The new bone formation takes place at the bone/cement interface, thanks to the mechanism of interfacial resorption of PD VitalOs Cement®. The 45% microporosity of the hardened cement accelerates the resorption-new bone formation process but hinders the inner vascularization of the material and hence, the weakening of PD VitalOs Cement®. Therefore, the blood vessels are not present ahead of this front. It is to be noted that, although this process is necessary for materials that do not resorb, this colonization is not sought in the case of PD VitalOs Cement® because the intrinsic resorption of Brushite is faster than the one of ß-TCP or HA.

How do you assess the new bone formation since the product is not radio-opacified?

PD VitalOs Cement® has a radiopacity equivalent to that of cortical bone. This means that it is very easy to locate on a radiograph. On the other hand, it is not easy to distinguish between newly formed bone and PD VitalOs Cement® (note that the problem is the same for all the calcium phosphate bone substitutes).

Does PD VitalOs Cement stick to all kinds of bone ?

PD VitalOs Cement does not stick to bone like a glue would do. It anchors to the bone surface by setting within the porosity of bone. Therefore, the anchoring surface should be porous and as dry as possible. This means that the cement grips well onto spongy bone but does not hold on cortical surfaces. If a part of the anchoring surface is cortical, the cortical layer should be removed to provide porosity and increase the contact surface between bone and cement that will provide osteogenic cells for new bone formation.

PD VitalOs Cement adheres poorly to cortical bone but very well to the implant surface. Then, is it possible to use the implant as the anchoring point for the cement in a site where the implant is only surrounded by cortical bone (delayed implantation in atrophied jaw) ?

No, this is not enough to ensure the stability of the cement. Moreover, the cement needs to be in contact with a surface that provides the osteogenic cells for new bone growth. This function cannot be ensured by cortical bone. The risk here is that the cement resorbs without being replaced by new bone or that it does not stay in contact with the surrounding bone.

The blood clot provides a source of osteogenic cells. Then, could the cement be injected in contact with the blood clot, without drying the site?

No, it is necessary to ensure that the bone-cement interface is as large as possible. This provides additional stability to the cement and the formation of a better resorption front line.

Is it possible to estimate a minimum recall time for a patient after a sinus lift procedure or a bone grafting technique to assess both clinically and radiologically the result of the intervention?

A visit after one week is recommended to retrieve the sutures and do a radiograph to check for the positioning of PD VitalOs Cement® in the site. Then, a control is recommended after 1 month. The bone remodelling process takes several months. The minimum recommended recall time is three months for bone grafting, six months for sinus lifting. Nevertheless, the dentist should always check that the situation is good enough to allow for the next step in the treatment procedure (be it prosthetic phase or implant placement).

Other questions?

Feel free to ask by clicking here.