EXPANDED DESIGN CONSIDERATIONS

To further augment the basic features, we can add nice to have but not necessary features.  Local (within one hour driving distance) manufacturer representatives can be a great resource on technical issues and be physically in the office to lend a hand in the beginning when the surgeon is getting used to the handling of the implant system. This is a great value since the representative can showcase all the features, essentially accelerating your learning curve significantly.

1. Platform switching

Fig. 1

This is a much debated feature/benefit with scant scientific evidence (Lazzara RJ, Porter SS, Int J Periodontics Restorative Dent. 2006 Feb;26 (1):9-17) but copious favorable field reports. The abutment platform is designed, on purpose or accident, smaller than the implant platform (Fig.1 left). Resulting in less initial bone atrophy around the implant and in some instances bone growth over the implant post implant insertion. One theory is the medialised movement of the micro gap between implant and abutment results in a decreased bacteria proximity to bone cells since the micro gap can act as a bacteria harbor. No scientific studies have been undertaken to define key factors on what dimensions qualify as platform switching and benefits. How many millimeters wide should the medialised junction between abutment and implant be? Does the platform have to be perpendicular to the long axis of the implant or can it be sloping and what angle of slope is acceptable?

2.Multi use coping

A feature that can save a significant amount of money and cut down on the multitude of parts needed is a fixture mount or implant carrier that comes pre attached to the implant body that can also be used as an impression coping and final abutment.

3.Solid zirconia abutment

To maximize the versatility and esthetics of zirconia abutments the connecting interface of the abutment should have no metal reinforcement pre bonded to the abutment. A through and through zirconia abutment is therefore more desirable because this will allow the technician to bake porcelain directly to the abutment to create a more ideal emergence profile or fabricate a all ceramic screw retained restoration.

4.Color coding

Color coding of the actual components makes for easy identification and can substantially reduce the risk of part mix ups and resulting remakes.