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First published online August 3, 2019

Predicting the Debonding of CAD/CAM Composite Resin Crowns with AI

Abstract

A preventive measure for debonding has not been established and is highly desirable to improve the survival rate of computer-aided design/computer-aided manufacturing (CAD/CAM) composite resin (CR) crowns. The aim of this study was to assess the usefulness of deep learning with a convolution neural network (CNN) method to predict the debonding probability of CAD/CAM CR crowns from 2-dimensional images captured from 3-dimensional (3D) stereolithography models of a die scanned by a 3D oral scanner. All cases of CAD/CAM CR crowns were manufactured from April 2014 to November 2015 at the Division of Prosthodontics, Osaka University Dental Hospital (Ethical Review Board at Osaka University, approval H27-E11). The data set consisted of a total of 24 cases: 12 trouble-free and 12 debonding as known labels. A total of 8,640 images were randomly divided into 6,480 training and validation images and 2,160 test images. Deep learning with a CNN method was conducted to develop a learning model to predict the debonding probability. The prediction accuracy, precision, recall, F-measure, receiver operating characteristic, and area under the curve of the learning model were assessed for the test images. Also, the mean calculation time was measured during the prediction for the test images. The prediction accuracy, precision, recall, and F-measure values of deep learning with a CNN method for the prediction of the debonding probability were 98.5%, 97.0%, 100%, and 0.985, respectively. The mean calculation time was 2 ms/step for 2,160 test images. The area under the curve was 0.998. Artificial intelligence (AI) technology—that is, the deep learning with a CNN method established in this study—demonstrated considerably good performance in terms of predicting the debonding probability of a CAD/CAM CR crown with 3D stereolithography models of a die scanned from patients.

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Published In

Article first published online: August 3, 2019
Issue published: October 2019

Keywords

  1. artificial intelligence
  2. composite materials
  3. restorative materials
  4. restorative dentistry
  5. resin(s)
  6. prosthetic dentistry/prosthodontics

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© International & American Associations for Dental Research 2019.
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PubMed: 31379234

Authors

Affiliations

S. Yamaguchi
Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Suita, Japan
C. Lee
Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Suita, Japan
O. Karaer
Department of Prosthodontics, Faculty of Dentistry, Ankara University, Ankara, Turkey
S. Ban
Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
A. Mine
Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
S. Imazato
Department of Biomaterials Science, Osaka University Graduate School of Dentistry, Suita, Japan
Department of Advanced Functional Biomaterial Science, Osaka University Graduate School of Dentistry, Suita, Japan

Notes

S. Yamaguchi, Department of Biomaterials Science, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan. Email: [email protected]

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