๐ย MUST READ DEFINTIONSย ย ๐ธFACEMASK:ย An extra-oral appliance, commonly used in Class III malocclusion, that uses anchorage from the chin and forehead to place anterior forces on the maxillary dentition and/or maxilla.๐ธFIXED APPLIANCE: An appliance that is cemented or bonded onto the teeth and cannot be removed by the patient.๐ธFUNCTIONAL APPLIANCE:ย A removable or fixed appliance, usually used in Class II malocclusion, which alters the posture of the mandible, causing stretching of the facial soft tissues, to produce a combination of dental and skeletal changes.๐ธFUNCTIONAL MATRIX THEORY: A theory of facial…
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