1. Treatment of irregularities of the permanent adult tooth;Angel;Dental Cosmos,1860
2. Treatment of irregularities of the permanent adult tooth;Angel;Dental Cosmos,1860
3. Rapid palatal expansion of the maxillary dental arch and nasal cavity by opening the midpalatal suture;Haas;Angle Orthod,1961
4. Maxillary expansion: Clinical implications;Bishara;Am J Ortho Dentofacial Orthop,1987
5. Haas AJ: A biological approach to diagnosis, mechanics and treatment of vertical dysplasia. Angle Orthod 50:279, 1080