Zimmer Dental

Tech Tips  FAQs

If the model has Spline implant analogs, you can put the narrow tapered end of a 15° or 25° Parallel pin (Cat. Nos. 0483 - 15° and 0484 - 25°) into the implant body analog. This will indicate the angle correction you need. Parallel pins (Cat. Nos. 1230, 1231, 1233 will not fit into an implant body analog) Zimmer Dental also has available the ERA Correct angle Selection Post Kits (Cat. No. 2457). It has trial posts at 5°, 11°, and 17° that fit Spline and Taper-Lock implants. For other Zimmer Dental Implants, the use of a protractor can assist in determining the angle needed for parallelism.

Which Zimmer Dental implants have common internal thread patterns?

3.25mm Integral, 3.25 & 4.0 mm Omniloc and all diameters of Spline, all diameters of Screw-Vent and Tapered Screw-Vent, 3.8 Platform Internal Hex Tapered Swiss Plus, and AdVent implants, have the same internal thread patterns. The 4.8 Platform Swiss Plus and the Taper Lock implants have the same thread pattern.

What is the shortest crown height that can be accomplished with Direct Gold Copings? Spline Direct Gold Copings:

Using the shortest cuff height (0.5 for the 3.25 or 3.75/4.0mm diameter, 1mm for 5.0 mm diameter implants) the shortest crown height would be 4.5 mm and 5.0 mm tall, respectively. This is without shortening the head of the screw. Although minimum reduction of the screw head is possible it is not recommended due to the reduction of the hex engagement of the tools and the increased potential for stripping of the screw heaad.

Screw-Vent, Tapered Screw-Vent, Taper-Lock, AdVent Direct Gold Copings:

Once all the restorative components are in place, and after the abutment is reduced to its minimum, the vertical height will be approximately 3.6mm for Screw-Vent, 4.9mm for Taper-Lock, and 4.0mm for AdVent Implants.

What is an open tray impression technique?

An "open" tray impression, sometimes called a "direct" impression, uses an impression post with a longer retaining screw. This retaining screw is usually 5mm or taller than the impression post body. The post is seated and tightened to the implant. The tray used for the impression has a "window" or hole cut out so the head of the retaining screw extends above the tray. Before the impression can be removed the retaining screw must be loosened, allowing the impression tray to be removed and retaining the impression post in the impression. The implant body analog is attached and tightened to the impression post with the same long retaining screw. The impression is then ready to be poured with dental stone.

The Spline impression post's unique design allows for its use in both the "closed" and "open" tray impression taking techniques. The standard Spline impression post is sold with a short retaining screw used for the "closed" tray technique. An optional long retaining screw (Cat. No. 1833) is available if you wish to use an "open" tray impression technique.

The Tapered Screw-Vent, Screw-Vent, and Taper-Lock, Implants have separate impression posts that are designed specifically for open or closed tray techniques.

Does BioMend or BioMend Extend need refrigeration?

No, BioMend products do not need to be stored in a refrigerator.

Which cements should be used for fixed restorations?

Whatever cement you normally use in the office. For permanent cement use a good metal-to-metal cement and for temporary cement any provisional cement will work. Euginal based cements are not required, as there are no decay issues, as with natural dentition, involved when cementing to an abutment post.

What should the hygienist use to clean around the implants and implant restorations?

The dental hygienist may use standard dental scalers around natural teeth. When cleaning around dental implants, it is recommended that plastic scalers or scalers designed specifically for implant usage be used. Traditional metal scalers can possibly score or abrade the implants and abutments.

What materials can be cast-to?

The pre-machined gold copings can be cast-to. Titanium is difficult to cast-to because of oxide layer build up and the need to keep the casting temperature below 1600F. In casting to the gold copings, a ceramic alloy (ANSI/ADA spec. no.38) , or type III or IV precious alloy (ANSI/ADA no.5) with a minimum yield strength of 75000 psi. is suggested. Non-Precious alloy is not recommended because of the potential for galvanic reactions and the potential for the material not to bond to the Gold Copings.

Why should I use a torque wrench?

To ensure a consistent maximum torque is applied to all abutments and retaining screws. The use of a torque wrench with torque settings between 20 and 30Ncm is recommended for all Zimmer Dental abutments and retaining screws.

How much can the Fixed Abutments and Gold Copings be modified?

The abutments can be modified as per the chart below:

Implant Size Spline Implants Fixed Abutment Standard flare Pre-angled Abutment Standard flare Direct Gold Coping Shouldered Abutment O-Ring Attachment
3.25mm Limit: not less than 3.75mm (.33mm on each side) Limit: not less than 3.75mm (.33mm on each side) use 0.5mm cuff-remove sleeve-reduce cuff diameterLimit: .33mm on each side (post cast) Cannot be modified Cannot be modified
3.75mm or4.0mm Limit: not less than 4.0mm Limit: not less than 4.0mm use 0.5mm cuff-remove sleeve-reduce cuff diameterLimit: not less than 4.0mm Cannot be modified Cannot be modified
5.0mm Limit: not less than 5.0mm Limit: not less than 5.0mm use 0.5mm cuff-remove sleeve-reduce cuff diameterLimit: not less than 5.0mm Cannot be modified Cannot be modified

 

Implant Platform Size Internal Hex Implants Hexlock AbutmentStandard flare Pre-angled AbutmentStandard flare Direct Gold Coping Tapered Abutments Ball Abutments
3.5 mm Limit: not less than 3..5mm (.5 mm on each side on 4.5 mm flared Abutment) Limit: not less than 3..5mm (.5 mm on each side on 4.5 mm flared Abutment) remove sleeve-reduce cuff (.5 mm on each side on 4.5 mm flared Abutment) Cannot be modified Cannot be modified
4.5mm Limit: not less than 3..5mm (.5 mm on each side on 4.5 mm flared Abutment) Limit: not less than 3..5mm (.5 mm on each side on 4.5 mm flared Abutment) -remove sleeve-reduce cuff (.5 mm on each side on 4.5 mm flared Abutment) Cannot be modified Cannot be modified
5.7mm Limit: not less than 4.0mm(.75 mm on each side on 6.5 mm flared Abutment) Limit: not less than 4.0mm (.75 mm on each side on 6.5 mm flared Abutment) -remove sleeve-reduce cuff (.75 mm on each side on 6.5 mm flared Abutment) Cannot be modified Cannot be modified