Comparison of intraoral scanning and conventional impression techniques using 3-dimensional superimposition
The Journal of Advanced Prosthodontics
;
: 460-467, 2015.
Article
in English
| WPRIM
| ID: wpr-60627
ABSTRACT
PURPOSE:
The aim of this study is to evaluate the appropriate impression technique by analyzing the superimposition of 3D digital model for evaluating accuracy of conventional impression technique and digital impression. MATERIALS ANDMETHODS:
Twenty-four patients who had no periodontitis or temporomandibular joint disease were selected for analysis. As a reference model, digital impressions with a digital impression system were performed. As a test models, for conventional impression dual-arch and full-arch, impression techniques utilizing addition type polyvinylsiloxane for fabrication of cast were applied. 3D laser scanner is used for scanning the cast. Each 3 pairs for 25 STL datasets were imported into the inspection software. The three-dimensional differences were illustrated in a color-coded map. For three-dimensional quantitative analysis, 4 specified contact locations(buccal and lingual cusps of second premolar and molar) were established. For twodimensional quantitative analysis, the sectioning from buccal cusp to lingual cusp of second premolar and molar were acquired depending on the tooth axis.RESULTS:
In color-coded map, the biggest difference between intraoral scanning and dual-arch impression was seen (P.05).
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Periodontitis
/
Axis, Cervical Vertebra
/
Tooth
/
Bicuspid
/
Temporomandibular Joint Disorders
/
Dataset
/
Molar
Limits:
Humans
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2015
Type:
Article
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