Photogrammetric Systems Outperform Traditional and Intraoral Methods in Impression Accuracy in full-arch dental implant rehabilitation: Study
Researchers have found in a new study that Icam4D and PIC photogrammetric impression systems showed the highest accuracy, surpassing conventional impression techniques in in full-arch dental implant rehabilitation.Further it was found that intraoral scanning method was least accurate.
A study was done to compare the accuracy of photogrammetric imaging, intraoral scanning and conventional impression technique in full-arch dental implant rehabilitation.
A resin edentulous mandibular model with six parallel implants was fabricated as master model. And three impression groups were performed: conventional splinted open tray impression technique (CON, n = 10); intraoral scanning technique with 3 Shape scanner (IOS, n = 10; TRIOS3, 3 Shape); digital photogrammetry impression technique with two different photogrammetric system namely PG-1 (Icam4D) and PG-2 (PIC) groups (n = 10). The reference values of master model and test values of CON group were digitized with a laboratory reference scanner, and for all groups the STL files were exported for analyzation.
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