Three-dimensional surface rendering from CBCT: pre-DOME (d), post-DOME (e) and final postorthodontic treatment (f) show DOME does not change mid-facial profile with 10 mm nasal floor expansion. Occlusal view: pre-DOME (g), post-DOME (h) and final postorthodontic treatment (i) show that 14 mm of diastema expanded (h) and spaces closed with orthodontic treatment with palatal roof expansion maintained.