Abstract: A system including computing devices operated by a covered entity, patients, dentists, and a data processor. The data processor receives first and second de-identified data from the patients and dentists, respectively. The first and second de-identified data includes first and second identified data, respectively, encrypted using a public key associated with the covered entity. The first and second identified data includes first and second oral health risk scores, respectively, generated for the patients. The data processor lacks both authorization to access the first and second identified data and a private key required to decrypt the first and second de-identified data. The data processor transfers the first and second de-identified data to a computing device operated by the covered entity that is configured to decrypt the first and second de-identified data using the private key to obtain the first and second identified data for use locally by the computing device.

Abstract: A method of describing a periodontal disease state includes assigning severity diagnoses to portions of a dentition, where the severity diagnoses correspond to periodontal disease states, and assigning numeric values to the portions, where the numeric values correspond to the severity diagnoses. The method also includes obtaining a raw score based on the numeric values, and determining a disease score based on the raw score. The disease score corresponds to a periodontal disease state of the dentition.