| CPC A61B 5/4552 (2013.01) [A61B 5/0536 (2013.01); A61B 5/6847 (2013.01); A61B 2562/046 (2013.01); A61B 2562/164 (2013.01)] | 9 Claims |
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1. A system comprising:
an oral care device comprising:
a mouthpiece;
a first flexible membrane coupled to the mouthpiece;
a first electrode configured to transmit a first signal through a gingiva of a user to cause an altered first signal, the first electrode housed on the first flexible membrane;
a second flexible membrane coupled to the mouthpiece;
a second electrode configured to receive the altered first signal, the second electrode housed on the second flexible membrane;
a signal processing circuit comprising at least a multiplexor; and
a processor configured at least to:
receive from the oral care device data indicative of the first signal and the altered first signal; and
generate an electrical impedance tomography (EIT) profile of the gingiva of the user based on the data indicative of the first signal and the altered first signal;
wherein the first flexible membrane is configured to be placed upon one of an anterior portion or a posterior portion of the gingiva of the user, and the second flexible membrane is configured to be placed upon another one of the anterior portion or the posterior portion of the gingiva; and
wherein the processor is further configured to:
determine the EIT profile of the gingiva of the user based on a potential difference between the first signal and the altered first signal;
determine the oral health characteristic of the user based on the EIT profile of the gingiva of the user;
determine a three-dimensional volume of the user's periodontium, the three-dimensional volume comprising one or more slices of an EIT profile image;
segment the user's plaque and tartar from the one or more slices of the EIT profile image to produce segmented tissue;
apply a filter to the segmented tissue to remove noise from the segmented tissue; and
determine a volume of the user's plaque and tartar from the filtered segmented tissue.
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