IADR Abstract Archives
Evaluation of Scan Bodies and Encode on Translating Implant Position
Objectives: During intraoral scanning, healing abutments are traditionally replaced by scan bodies to provide information on implant hexagon position thereby enabling CAD/CAM restorative workflows. BellaTek® Encode® serves as a healing abutment and scan body, so component swapping is unnecessary. Furthermore, Encode provides information as to the platform diameter and implant depth following placement. The study purpose was to measure the accuracy of information provided via Encode as compared to the use of traditional scan bodies. Initial measurements focused on angle error (AE), while future work will focus on center point alignment.
Methods: A 3-dimensional rapid prototyped representative patient model was printed (Model: VIDA HD, EnvisionTEC, Inc.). Three Tapered Screw-Vent® implants were positioned in the model and digitally scanned using a desktop scanner (Model: D2000, 3Shape, Inc.). Encode and traditional scan bodies (n=3) were positioned in the model and digitally scanned. Output STL files were digitally aligned using Geomagic Studio® 2014 (Geomagic, Inc.).
AE was defined as the angle between the implant hexagon flat and the plane of Encode or the scan body flat. This measurement determined the accuracy of flat alignment. Statistical analysis used a one-way ANOVA and Tukey’s test at a significance level a=0.05.
Results: AE exists due to limitations associated with scan error and mathematical deviations during alignment. AE ranged from 1.18° to 4.82°. No significant difference was measured in the AE among Encode (3.20° ± 1.83°) and the traditional scan bodies (3.31° ± 1.46° and 2.94° ± 1.66°).
Conclusions: Encode performed as well as the “non-Encode” scan bodies in providing information on implant hexagon orientation as demonstrated by no significant difference in AE measurements. The additional information offered by using Encode can provide more details to support the custom specific definitive abutment design.
Disclaimer: Encode for Tapered Screw-Vent® does not have FDA-510K clearance. This study was conducted for research purposes only.
Methods: A 3-dimensional rapid prototyped representative patient model was printed (Model: VIDA HD, EnvisionTEC, Inc.). Three Tapered Screw-Vent® implants were positioned in the model and digitally scanned using a desktop scanner (Model: D2000, 3Shape, Inc.). Encode and traditional scan bodies (n=3) were positioned in the model and digitally scanned. Output STL files were digitally aligned using Geomagic Studio® 2014 (Geomagic, Inc.).
AE was defined as the angle between the implant hexagon flat and the plane of Encode or the scan body flat. This measurement determined the accuracy of flat alignment. Statistical analysis used a one-way ANOVA and Tukey’s test at a significance level a=0.05.
Results: AE exists due to limitations associated with scan error and mathematical deviations during alignment. AE ranged from 1.18° to 4.82°. No significant difference was measured in the AE among Encode (3.20° ± 1.83°) and the traditional scan bodies (3.31° ± 1.46° and 2.94° ± 1.66°).
Conclusions: Encode performed as well as the “non-Encode” scan bodies in providing information on implant hexagon orientation as demonstrated by no significant difference in AE measurements. The additional information offered by using Encode can provide more details to support the custom specific definitive abutment design.
Disclaimer: Encode for Tapered Screw-Vent® does not have FDA-510K clearance. This study was conducted for research purposes only.