الفهرس 
ABSTRACTOnly 14 pages are availabe for public view
 |  | from | 120 |  |  |
| | | from | 120 | | |
Abstract
Purpose: To determine the accuracy of digital scan body impression for implant supported fixed
partial denture using intra-oral and extra-oral digital scanner
Material and methods: A typodont cast with acrylic teeth was used, afterward cast duplication and
surgical guide was fabricated for drilling 0f implant fixture placement. The scan bodies were fixed
on the implant fixture. Samples were divided into two groups. group 1 intra oral scanning (IOS) 10
samples using Medit i500 and for group 2 extra-oral scanner (EOS)10 samples using Medit T500.
The reference model scanned using extra-oral scanner to be transferred as an STL file. that was
used as control group for comparison. The STL files from both groups with the reference model
were analyzed by metrology software Geomagic. For trueness comparison the IOS and EOS group
were supper imposed into the reference cast with scan bodies. For precision comparison the IOS
group was over imposed on one another, and the EOS group technique was also over imposed each
other.
Results it was found that the precision of both IOS and EOS was clinically accepted with no
significant difference between both groups.
Conclusion Through this study it can be evidenced that the IOS and scan body are a valid
alternative to conventional techniques of impressions with elastomeric materials for obtaining
accurate restorations of the short span implant fixed prosthodontics.