Effect of Different Digital Impression Techniques on the trueness of post space scans with fixed cervical diameter
ahmed, S., zohdy, M., foad, O., Abdelfattah, G. (2023). Effect of Different Digital Impression Techniques on the trueness of post space scans with fixed cervical diameter. EKB Journal Management System, 26(1), 41-47. doi: 10.21608/ajdsm.2022.167266.1372
sara mohsen ahmed; maged zohdy; omar foad; Ghada Abdelfattah. "Effect of Different Digital Impression Techniques on the trueness of post space scans with fixed cervical diameter". EKB Journal Management System, 26, 1, 2023, 41-47. doi: 10.21608/ajdsm.2022.167266.1372
ahmed, S., zohdy, M., foad, O., Abdelfattah, G. (2023). 'Effect of Different Digital Impression Techniques on the trueness of post space scans with fixed cervical diameter', EKB Journal Management System, 26(1), pp. 41-47. doi: 10.21608/ajdsm.2022.167266.1372
ahmed, S., zohdy, M., foad, O., Abdelfattah, G. Effect of Different Digital Impression Techniques on the trueness of post space scans with fixed cervical diameter. EKB Journal Management System, 2023; 26(1): 41-47. doi: 10.21608/ajdsm.2022.167266.1372

Effect of Different Digital Impression Techniques on the trueness of post space scans with fixed cervical diameter

Al-Azhar Journal of Dental Science
Article 6, Volume 26, Issue 1, January 2023, Page 41-47  XML PDF (916.7 K)
Document Type: Original Article
DOI: 10.21608/ajdsm.2022.167266.1372
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Authors
sara mohsen ahmed email 1; maged zohdy2; omar foad3; Ghada Abdelfattah4
1fixed prosthodontics,Faculty of Dentistry, Ain Shams university
2Fixed Prosthodontics Department Faculty of Dentistry, Ain Shams university
3lecturer fixed prosthodontics,Faculty of Dentistry, , British University In Egypt
4Fixed Prosthodontics Department, Faculty of Dentistry, Ain Shams University
Abstract
Objective: The aim of this study was to measure the trueness of post space impression by 2 digital impression techniques: Impression Scanning (IS) and Model Scanning (MS) with cervical diameter 3 millimeters. Materials and methods: Fourteen freshly extracted single rooted lower second premolars were endodontically treated using Wave-One* single file technique. Then mounted in acrylic blocks parallel to long access using a dental surveyor 2mm above the CEJ, drills in sequence 1.4 and 1.6 millimeter then diamond stone with 3 millimeter diameter were used for teeth preparation with a standardized depth of 8mm. Teeth were scanned by reference scanner InEos5 X5. The 14 teeth were impressioned using polyether impression material, scanned using 3shape desktop scanner E2. Then the impressions were poured to produce stone models furtherly scanned using same scanner. Then all STL files were compared to the reference scanner using Geomagic control X software. Results: Samples where models were scanned had lower trueness values than impression scanning. Conclusions: Impression scanning for post space are recommended than model scanning.
Keywords
Trueness; Digital impression; Conventional impression; Post space
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