title: Palatal mucoperiostomy: an attempt to reduce relapse after slow maxillary expansion.
abstract: The effects of a mucoperiosteal surgical procedure on the stability of palatal expansion was examined in a sample of three Macaca nemestrina monkeys. The expansion was accomplished with a modified Mini-expander which delivered a continuous 2-pound force. At the completion of expansion, a mucoperiostomy was performed on one side of each animal, with the other side left as a control. Data were collected and analyzed and postretention periods; implanted head holders ensured reproducible head positioning, and implanted tantalum markers facilitated linear and angular measurements to assess skeletal and dental changes. From the results of this study, one cannot conclude that the surgical procedure was effective in reducing relapse, although the palatal expansion did result in good stability of the expanded skeletal structures and fair stability of the teeth.
mesh_terms: D000818:Animals; D008254:Macaca nemestrina; D008297:Male; D009061:Mouth Mucosa / Q000601:surgery; D009967:Orthodontic Appliances; D010155:Palatal Expansion Technique; D010159:Palate / Q000502:physiology / Q000601:surgery*; D010521:Periosteum / Q000502:physiology / Q000601:surgery; D019736:Prostheses and Implants; D012008:Recurrence; D013997:Time Factors