BioHorizons® IMPRESSION COPINGS

1. External Hex

Fig. 1

Although the 3 inOne abutment (Fig.1) supplied with each implant can be used as a indirect (closed tray) impression coping, a ball top screw (Fig.1, right) should be used instead of the included abutment screw at the time of impression taking. The ball top screw is available for 3.7mm platform diameter (catalog # 213-235) and 4.2mm, 5.2mm, 6.2mm platform diameters (catalog # 214-235). A dedicated indexed impression coping (Fig.2) for the direct (open tray) fixture level impression technique is also offered for all platform diameters.

Fig. 2

BioHorizons® carries non hexed direct impression copings in their portfolio, these impression coping should only be used after careful deliberation because if the proposed prosthetic design needs to be changed after impression taking a time consuming second impression with hexed impression copings may need to be taken. The 3 inOne impression coping and all other impression copings are color coded according to platform diameter (yellow 3.7mm, green 4.2mm, blue 5.2mm and purple 6.2mm).

Fig. 3

Abutment for Screw abutments may be impressed direct or indirectly. The direct impression coping (Fig.3 right) is machined as a two component set, impression coping body and fixation screw while the indirect impression coping (Fig.3, left) is rendered as a unibody component incorporating the impression coping body and scew in to a single entity. Either impression coping may be utilized for any installed Abutment for Screw regardless of the implant platform diameter or connection type (external hex, internal, Single-stage) implant.

2. Internal, Tapered Internal Implant

Fig. 4

Although the 3 inOne abutment (Fig.4) supplied with most implants can be used as a indirect (closed tray) impression coping, a ball top screw (Fig.4, right) should be used instead of the included abutment screw at the time of impression taking. A universal ball top screw (Fig.4, right, catalog # PXBT) is available for all platform diameters.

Fig. 5

Dedicated impression copings with different emergence profiles for the indirect (Fig.4, closed tray) and direct (Fig.6, open tray) fixture level impression technique are also offered for all platform diameters. BioHorizons® carries non hexed impression copings in their portfolio, these impression coping should only be used after careful deliberation because if the proposed prosthetic design needs to be changed after impression taking a time consuming second impression with hexed impression copings may need to be taken.

Fig. 6

The 3 inOne impression coping and all other impression copings are color coded according to platform diameter (yellow 3.5mm, green 4.5mm and blue 5.7mm). Dedicated impression copings are offered in three emergence profile diameters for each platform diameter, congruent with available transmucosal healing abutment emergence profiles.

Abutment for Screw impression copings see external hex Abutment for Screw section above.

3. Single-stage Implants

Fig. 7

Fixture level impression copings (Fig.7) for Single-stage implants are only available for the direct (open tray) impression technique and no choice in emergence profile diameters. This shortcoming could be overcome by using indirect (closed tray) or direct (open tray) fixture level impression copings from BioHorizons® Internal and Tapered internal implant systems in compliance with appropriate platform diameters. If this work around is employed the laboratory needs to be alerted on the Rx that the implants are actually Single-stage and not Internal or Tapered internal system implants. Single-stage implants were primarily designed for Simple solution, abutment level impression techniques. Please see section four below for Simple-solution abutment level impression copings and technique.

Abutment for Screw impression copings see external hex Abutment for Screw section above.

4. Simple Solution Abutment

Fig. 8

Simple-solution abutment level impression copings are made of plastic and are color coded (yellow 4.5mm, green 4.5mm and blue 5.7mm) in accordance to the implant platform diameter. Six different configurations are available, two for each platform diameter. Simple-solution abutments are machined in two heights of 4mm and 5.5mm. Impression copings are chosen in regards to the abutment height (Fig.8) within the platform diameter group.

Fig. 9

Each Simple-solution abutment is machined with two opposing flat sides in the long axis of the abutment and corresponding flat sides in the impression coping. The impression coping is snapped over the installed abutment, lining up the flat sides of the abutment with the impression copings flat sides. Impression copings have indicator notches (Fig.9) on the outside of the coping along the long axis corresponding to the flat side inside the impression copings to ease proper orientation of the coping over the abutment.

5. Laser-Lok 3.0 Implant

Fig. 10

The only impression copings available for the Laser-Lok 3.0 implant system are indexed and non indexed direct (Fig.10, open tray) copings. Caution should be used when utilizing non hexed impression copings because these should only be utilized when a splinted substructure with a minimum of two implants as part of the final restoration is the treatment goal. It is best to always use hexed impression copings in case the restoration design needs to be modified from the original planned design due to unfavorable or unforeseen conditions.

All images courtesy of BioHorizons®