FIGURE 1.

(a) Summary of participant numbers at selective time points during study. See Table 2 for demographic details. (b) Study sequence. Subjects meeting selection criteria were involved in four appointments. Time periods over which each appointment occurred are indicated. Primary outcome (Diary‐based compliance, underlined) was evaluated after app 4. Secondary outcomes (italicized) were evaluated during specific appointments, 2–4, as indicated. app, appointment; IC, informed consent; DMFS, decayed missing and filled surfaces; Perio, evaluation of gingiva and plaque indices; HST, home sleep testing (see text)