6533b85efe1ef96bd12c0789
RESEARCH PRODUCT
Comparative in vitro study of the accuracy of impression techniques for dental implants: Direct technique with an elastomeric impression material versus intraoral scanner.
Rubén Agustín-panaderoLucía Fernández-estevanMa Fernanda Solá-ruizCristina Rech-ortegaCarlos Labaig-ruedasubject
ScannerDental Impression TechniqueIn Vitro TechniquesCoordinate-measuring machine03 medical and health sciences0302 clinical medicineIn vitro study030212 general & internal medicineGeneral DentistryMathematicsConventional techniqueDental ImplantsIntraoral scannerResearchDental Impression Materials030206 dentistryDirect Technique:CIENCIAS MÉDICAS [UNESCO]Models DentalImpressionOtorhinolaryngologyElastomersDimensional Measurement AccuracyReference valuesUNESCO::CIENCIAS MÉDICASComputer-Aided DesignSurgeryOral SurgeryBiomedical engineeringdescription
Background The aim of this study was to compare a conventional technique (elastomeric impression material - EIM) and a digital technique (scanner digital model – SDM) on a six-analog master model (MM) to determine which was the most exact. Material and Methods Twenty impressions were taken of a master model (EIM) and twenty scanned impressions (SDM) (True Definition). A coordinate measuring machine (CMM) was used to measure the distances between adjacent analogues (1-2, 2-3, 3-4, 4-5, 5-6), intermittently positioned analogues (1-4, 3-6) and the most distal (1-6). Reference values were established from the master model, which were compared with the two impression techniques. The significance level was established as 5% (p four implants), neither technique can be considered accurate although error falls within the tolerance limits established in the literature (30-150µm). Key words:Digital workflow, full arch scan, intraoral scanner, CAD/CAM, polyether impression, accuracy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-01-01 | Medicina oral, patologia oral y cirugia bucal |