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Decodify® system: cephalometrics as risk manager and administrative tool for the orthodontic clinic

INTRODUCTION: Cephalometrics may have limited clinical application in Orthodontics because it demands subjective interpretation. An artificial intelligence (A.I.) system, Decodify®, was developed to provide an individual quantitative interpretation of contextualized cephalometric data. In this paper the system is tested as a valid management tool in orthodontic offices. METHODS: The development of algorithms included modeling of norms and standard deviations of Brazilian cephalometric data measured on lateral radiographs. In order to test the system, initial cephalograms of 60 orthodontic patients from two orthodontic offices (30 cases each) were processed and re-processed by three different technicians. Reproducibility and reliability intra-observer and inter-observers were paired checked. The risk in each case, product of the electronic analysis, was compared by covariance matrices and reliability coefficients. RESULTS: Levels of inter-observers paired correlation (against golden pattern) for 23 pairs of variables, ranged from 0,68 (S-Go distance) to 0,98 (Na-Me distance) in an orthodontic clinic (JU) and from 0,66 (L1.APg angle) to 0,98 (S-Go distance) in other orthodontic clinic (SP). Levels of intra-observer correlation for 23 pairs of variables ranged from 0,52 (L1.APg angle) to 0,98 (S-Go and Na-Me distances) in an orthodontic clinic (JU) and from 0,55 (U1.Na angle) to 0,92 (Wits distance) in other (SP). All the correlations were significant at the p<0,001 level. The reliability coefficients of the assessed risks were 0,78 for a clinic (JU) and 0,75 for other clinic (SP). The reliability coefficients were significant at the p<0,0001 level. ? CONCLUSIONS: The results of this research support that the outcomes of the Decodify® system are reproducible and reliable. Therefore, the system can be applied to contextualize conventional cephalometric data and to generate case-specific risk. It can be used by the orthodontist as an important administrative tool for daily professional evaluations.

Orthodontics; Diagnosis; Artificial Intelligence


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