Comparison of Hyrax and bonded expansion appliances.

摘要: The majority of rapid maxillary expansion studies have reported the use appliances with metal bands attached to posterior teeth. Tooth extrusion, dental tipping, and an increase in vertical dimension are often encountered, which may not coincide treatment objectives. Bonded using interocclusal acrylic control expand halves a more bodily symmetrical fashion. purpose this clinical trial was determine, by radiographic analysis, differences between conventional banded expander (Hyrax) bonded expander. Fourteen patients who exhibited need for were enrolled study. results suggest that seen Hyrax appliance be minimized or negated appliance. However, there appeared no significant difference amount tipping two appliances, as previously theorized.