New approach to establish an object reference frame for dental arch in computer-aided surgical simulation

J Li, P Yuan, C-M Chang, D C-Y Ho, Y-F Lo, S Shen, D Kim, J F Teichgraeber, D M Alfi, J Gateno, J J Xia

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The purpose of this study was to develop a principal component analysis-based adaptive minimum Euclidean distances (PAMED) approach to establish an optimal object reference frame for symmetrical alignment of the dental arch during computer-aided surgical simulation (CASS). It was compared with our triangular methods and the standard principal component analysis (PCA) method. Thirty sets of maxillary digital models were used. Midsagittal and occlusal planes were ranked by three experienced evaluators based on their clinical judgment. The results showed that for the midsagittal plane, all three evaluators ranked "ideal" for all 30 models with the PAMED method, 28 with the triangular method, and at least 11 with the PCA method. For the occlusal plane, one evaluator ranked all 30 models "ideal" with both the PAMED and the PCA methods while the other two evaluators ranked all 30 models "ideal" with the triangular method. However, the differences among the three methods were minimal. In conclusion, our PAMED method is the most reliable and consistent approach for establishing the object reference frame for the dental arch in orthognathic surgical planning. The triangular method should be used with caution because it can be affected by dental arch asymmetry. The standard PCA method is not recommended.
Original languageTraditional Chinese
Pages (from-to)1193-1200
Number of pages8
JournalInternational Journal of Oral and Maxillofacial Surgery
Volume46
Issue number9
DOIs
Publication statusPublished - Sep 2017

Cite this

New approach to establish an object reference frame for dental arch in computer-aided surgical simulation. / Li, J; Yuan, P; Chang, C-M; Ho, D C-Y; Lo, Y-F; Shen, S; Kim, D; Teichgraeber, J F; Alfi, D M; Gateno, J; Xia, J J.

In: International Journal of Oral and Maxillofacial Surgery, Vol. 46, No. 9, 09.2017, p. 1193-1200.

Research output: Contribution to journalArticle

Li, J, Yuan, P, Chang, C-M, Ho, DC-Y, Lo, Y-F, Shen, S, Kim, D, Teichgraeber, JF, Alfi, DM, Gateno, J & Xia, JJ 2017, 'New approach to establish an object reference frame for dental arch in computer-aided surgical simulation', International Journal of Oral and Maxillofacial Surgery, vol. 46, no. 9, pp. 1193-1200. https://doi.org/10.1016/j.ijom.2017.04.012
Li, J ; Yuan, P ; Chang, C-M ; Ho, D C-Y ; Lo, Y-F ; Shen, S ; Kim, D ; Teichgraeber, J F ; Alfi, D M ; Gateno, J ; Xia, J J. / New approach to establish an object reference frame for dental arch in computer-aided surgical simulation. In: International Journal of Oral and Maxillofacial Surgery. 2017 ; Vol. 46, No. 9. pp. 1193-1200.
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AB - The purpose of this study was to develop a principal component analysis-based adaptive minimum Euclidean distances (PAMED) approach to establish an optimal object reference frame for symmetrical alignment of the dental arch during computer-aided surgical simulation (CASS). It was compared with our triangular methods and the standard principal component analysis (PCA) method. Thirty sets of maxillary digital models were used. Midsagittal and occlusal planes were ranked by three experienced evaluators based on their clinical judgment. The results showed that for the midsagittal plane, all three evaluators ranked "ideal" for all 30 models with the PAMED method, 28 with the triangular method, and at least 11 with the PCA method. For the occlusal plane, one evaluator ranked all 30 models "ideal" with both the PAMED and the PCA methods while the other two evaluators ranked all 30 models "ideal" with the triangular method. However, the differences among the three methods were minimal. In conclusion, our PAMED method is the most reliable and consistent approach for establishing the object reference frame for the dental arch in orthognathic surgical planning. The triangular method should be used with caution because it can be affected by dental arch asymmetry. The standard PCA method is not recommended.

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