1. Malocclusion severity assessment;Salzmann;Am J Orthod,1967
2. Orthodontics under medicare and Medicaid;Salzmann;Am J Orthod,1966
3. AAO House of Delegates updates medically necessary orthodontic care definition, auto-qualifiers. AAOInfo.org. Available at: https://www2.aaoinfo.org/aao-house-of-delegates-updates-medically-necessary-orthodontic-care-definition-auto-qualifiers/. Accessed October 29, 2022.
4. A validation study of three indexes of orthodontic treatment need in the United States;Younis;Community Dent Oral Epidemiol,1997
5. Exploring the perception of orthodontic treatment need using the Dental Aesthetic Index and Index of Orthodontic Treatment Need;Vedovello;Am J Orthod Dentofacial Orthop,2019