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Individual trajectories of worst facial pain are shown for all individuals who provided endpoint data. The columns represent treatment groups. The rows represent the degree of improvement: substantial improvement (more than a 4-point decline on a 0–10 scale); modest improvement (from more than 0 points to a 4-point decline on a 0–10 scale); no improvement or worsening (no decline or pain increase). Baseline values are centered at the time of the first intervention visit.
