Virtual Models Obtained via Intraoral Scanning as Alternated to Clinical Evaluation and b-Hemihydrate Plaster Models

Corina Marilena Cristache,Eugenia Eftimie Totu,Liliana Burlibasa,Elena Mihaela Carausu,Tiberiu Totu,Irina Adriana Beuran

doi:10.37358/rc.19.10.7640

Abstract

Digital scanners are currently use in various fields of dentistry such as prosthodontics, dental implantology, orthodontics, with a high degree of accuracy, mostly for replacing conventional impressions. The aim of the present study was to assess the accuracy (trueness and precision) of gingival margin measurements, on virtual models obtained by intraoral scanning, for precise diagnosis and treatment monitoring of periodontal disease. Three methods were compared for accuracy: clinical measurements using periodontal probes, digital intraoral scanning and measurements in MeshLab software and 2D digital measurements on intraoral photography taken during clinical measurements. Intraoral scanning was proved to be a reliable method for measuring the gingival level for diagnosis and clinical monitoring having a good accuracy as compared to the gold standard (clinical measurements).

Highlights

Digital scanners are currently used in various fields of dentistry such as prosthodontics, dental implantology, orthodontics, with a high degree of accuracy, mostly for replacing conventional impressions
The aim of the present study was to assess the accuracy of gingival margin measurements, on virtual models obtained by intraoral scanning, for precise diagnosis and treatment monitoring of periodontal disease
The digital 2D measurements were performed as follows: the .jpeg format pictures obtained during clinical measurements were imported in Image J software to measure, with a greater accuracy, the selected gingival margins

Summary

Introduction

Digital scanners are currently use in various fields of dentistry such as prosthodontics, dental implantology, orthodontics, with a high degree of accuracy, mostly for replacing conventional impressions. The aim of the present study was to assess the accuracy (trueness and precision) of gingival margin measurements, on virtual models obtained by intraoral scanning, for precise diagnosis and treatment monitoring of periodontal disease. The digital 3D measurements were executed by the same two independent investigators, employing the free MeshLab software (Visual Computing Lab, Institute of Science and Technology Italy), on digital model obtained via intraoral scanning using the scanner Carestream 3600 (Carestream Dental LLC, Atlanta, GA, USA) (Fig. 3).

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Conclusion