Evaluation of Functional Orthodontic Treatment on Sleep Quality

"The patients were treated with Twin block and Herbst functional appliances. Alginate impressions and a protrusive wax bite were taken for the construction of each appliance. Each device was fitted and then reviewed 4-6 weeks later. First group was treated with Twin block which was manufactured basically according to the original design described by Clark. The overjet was measured from the patients in centric relationship and maximum protrusion position, and construction bite was recorded with 70% of the total advancement capacity of the mandible and 2-4 mm above the freeway space vertically. Overjet measurements were made at each session and active treatment was terminated when a normal overjet in the retracted position was recorded.~Second group was treated with the stainless-steel crown Herbst appliance, included crowned maxillary first molars and mandibular first premolars. The construction bite was recorded with the mandible forward by edge-to-edge incisor position."