scholarly journals Comparison of the VetGate and SurgiGATE 1.0 computer assisted surgery systems for insertion of cortex screws across the distal phalanx in horses – an in vitro study

2017 ◽  
Vol 33 (2) ◽  
pp. 120-126 ◽  
Author(s):  
C S Schwarz ◽  
T Rudolph ◽  
J H Kowal ◽  
J A Auer
Keyword(s):  
In Vitro Study ◽  
Computer Assisted Surgery ◽  
Distal Phalanx ◽  
Vitro Study ◽  
Computer Assisted

scholarly journals Comparison of Computer Assisted Surgery with Conventional Technique for Treatment of Abaxial Distal Phalanx Fractures in Horses: An In Vitro Study

2008 ◽  
Vol 37 (1) ◽  
pp. 32-42 ◽  
Author(s):  
MELANIE ROSSOL ◽  
DIEGO GYGAX ◽  
JULIANE ANDRITZKY-WAAS ◽  
GUOYAN ZHENG ◽  
CHRISTOPH J. LISCHER ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Computer Assisted Surgery ◽  
Conventional Technique ◽  
Distal Phalanx ◽  
Vitro Study ◽  
Computer Assisted

scholarly journals Computer-Assisted Surgery for Screw Insertion into the Distal Sesamoid Bone in Horses: An In Vitro Study

2006 ◽  
Vol 35 (7) ◽  
pp. 626-633 ◽  
Author(s):  
DIEGO GYGAX ◽  
CHRISTOPH LISCHER ◽  
DAGMAR NITZEL ◽  
MELANIE ROSSOL ◽  
JOERG A. AUER
Keyword(s):  
In Vitro Study ◽  
Computer Assisted Surgery ◽  
Vitro Study ◽  
Computer Assisted ◽  
Sesamoid Bone ◽  
Screw Insertion ◽  
Distal Sesamoid Bone

Computer assisted LISS plate placement: an in vitro study

2009 ◽  
pp. 1-4
Author(s):  
Abdulaziz Al-Ahaideb ◽  
Andrew Quinn ◽  
Erin Smith ◽  
Jeffrey Yach ◽  
Randy Ellis ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Computer Assisted

scholarly journals Trueness of CAD/CAM digitization with a desktop scanner – an in vitro study

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
G. Joós-Kovács ◽  
B. Vecsei ◽  
Sz. Körmendi ◽  
V. A. Gyarmathy ◽  
J. Borbély ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Reference Data ◽  
In Vitro Study ◽  
Vitro Study ◽  
Computer Assisted ◽  
Surface Information ◽  
Virtual Models ◽  
Cad Cam ◽  
Aided Design

Abstract Background Desktop scanners are devices for digitization of conventional impressions or gypsum casts by indirect Computer-Aided Design/Computer-Assisted Manufacturing (CAD/CAM) in dentistry. The purpose of this in vitro study was: 1, to investigate whether virtual models produced by the extraoral scanner have the same trueness as sectioned casts; and 2, to assess if digitization with an extraoral scanner influences the surface information. Methods A polimethyl-methacrilic acid (PMMA) cast and a reference scanner (TwoCam 3D, SCAN technology A/S, Ringsted, Denmark; field of view 200 mm, resolution 0.1 mm ± 0.025 mm) were used to create the reference data in standard tessellation format (STL). According to the extraoral CAD/CAM digitization steps, impressions, mastercasts, and sectioned casts were made, and STL files were generated with the reference scanner. The pivotal point of the study was to digitalize these sectioned casts with the extraoral scanner (Straumann CARES Scan CS2 Visual 8.0 software, InstitutStraumann AG, Basel, Switzerland) and STL files were exported. Virtual caliper measurements were performed. Absolute deviations were compared using multilevel mixed-effects linear regression. Relative distortions were calculated with mean absolute errors and reference values. Results Differences were observed in measurements of tooth sizes. All four prepared teeth were affected. No relationship was observed in relative deviations. Absolute differences between all the indirect digitization steps considering arch distances were: impressions, − 0.004 mm; mastercasts, 0.136 mm; sectioned casts, − 0.028 mm; and extraoral scanner, − 0.089 mm. Prepared dies on the virtual casts (extraoral scanner) were closer to each other than those on the sectioned gypsum casts. Relative deviation calculations revealed no relationship with the position of the dies in the arch. Conclusion The trueness of the virtual models generated by the extraoral scanner system used in this study was different from the dimensions of the sectioned casts. The digitization of gypsum casts changes both the dimensions of dies and the distances between the dies. The virtual casts had smaller distances than any distances measured at previous steps. Either bigger dies or longer distances did not result in greater distortions. We cannot, however, generalize our results to all scanners available on the market, because they might give different results.

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