Changes in Ability of Patients to Differentiate Intensity of Forces Applied to Maxillary Central Incisors During Orthodontic Treatment

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Abstract
Changes in the subjective ability of patients undergoing orthodontic treatment to distinguish differences in intensity of forces applied to maxillary central incisors were evaluated. A decided reduction of this discriminatory ability was recorded four days after the insertion of orthodontic appliances. A significant reduction in pain threshold to these forces also was noted. Subsequent measurements showed a definite trend toward the initial pretreatment values.