Read a tooth's plaque sub-record from the active chart as a PLAIN array of present surfaces, safe to mutate, never aliases live state. A tooth with no plaque surface (or never touched at all) returns [].
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Read a tooth's plaque sub-record from the active chart as a PLAIN array of present surfaces, safe to mutate, never aliases live state. A tooth with no plaque surface (or never touched at all) returns
[].