Ferrari, Marco; Keeling, Andrew; Mandelli, Federico; Lo Giudice, Giuseppe; Garcia-Godoy, Franklin; Joda, Tim Alexander (2018). The ability of marginal detection using different intraoral scanning systems: A pilot randomized controlled trial. American journal of dentistry, 31(5), pp. 272-276. Mosher & Linder
Full text not available from this repository. (Request a copy)PURPOSE
To assess the clinical ability of marginal detection of different intraoral optical scanning (IOS) systems.
METHODS
The Ethics Committee of the University of Siena, Italy approved the research project. Thirty patients in need of an onlay/inlay with supra-gingival margins were included and randomly divided in three groups of 10 (3× n=10) according to the IOS for chairside capturing:(A) GC-Europe (Aadva); (B) True-Definition-TD; (C) Trios. A total of 1 scans from each IOS test group (A-C), were obtained clinically and stored as STL-files. In addition, corresponding conventional impressions were taken for all 30 patients, poured with stone, and then processed by a laboratory scanner (Aadva), serving as controls. All 60 STL-files were imported to the Exocad platform for analysis. The horizontal distance between each preparation margin and the adjacent tooth was measured using the ruler tool in the software. The distance at which the detection of the margin started to become visibly unclear was recorded for the horizontal distances. Data was processed statistically by one-way ANOVA (P> 0.05).
RESULTS
No statistically significant inter-test group differences could be identified (IOS A-C). The minimum distance from which a clear margin was visible, was 4.5 (SD 0.1) mm for all images, regardless of which IOS was used. Under these experimental clinical conditions, all tested IOS performed similarly. In contrast, all margins of the controls were clearly visible.
CLINICAL SIGNIFICANCE
None of the tested intraoral scanning systems in this study were capable of recording a clear impression when the cervical margin for a posterior partial crown was located at a distance of less than 0.5 mm from the interproximal neighbor.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology |
UniBE Contributor: |
Joda, Tim |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
0894-8275 |
Publisher: |
Mosher & Linder |
Language: |
English |
Submitter: |
Vanda Kummer |
Date Deposited: |
26 Jun 2019 09:23 |
Last Modified: |
02 Mar 2023 23:31 |
PubMed ID: |
30346675 |
URI: |
https://boris.unibe.ch/id/eprint/123949 |
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