title: Tweed-Merrifield sequential directional force treatment.
abstract: There are essentially five concepts which comprise the modern Tweed-Merrifield Sequential Directional Force treatment philosophy. These concepts are: (1) sequential appliance application, (2) sequential and/or individual tooth movement, (3) sequential mandibular anchorage preparation, (4) directional forces which control the vertical dimension to enhance mandibular response, and (5) proper timing of treatment. Tweed-Merrifield Sequential Edgewise Directional Force Treatment can be organized into four steps: denture preparation, denture correction, denture completion, and denture recovery. During each of these steps, there are certain treatment objectives that must be attained. This article outlines the modern Tweed-Merrifield treatment concept.
authors.affiliation: Department of Graduate Orthodontics, Oklahoma University School of Dentistry, Oklahoma City, USA.
authors.forename: H A
authors.initials: HA
authors.lastname: Klontz
mesh_terms: D002508:Cephalometry / Q000592:standards; D002648:Child; D003799:Dental Stress Analysis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008312:Malocclusion, Angle Class II / Q000175:diagnosis / Q000628:therapy*; D009967:Orthodontic Appliances; D009971:Orthodontics, Corrective / Q000379:methods*; D014716:Vertical Dimension