1. An assessment of the occlusion of teeth of children;Kelly,1973
2. An assessment of the teeth of youths 12–17 years;Kelly,1977
3. Prevalence and distribution of selected occlusal characteristics in the U.S. population, 1988–91;Brunelle;J Dent Res,1996
4. Self-confidence of general dentists in diagnosing malocclusion and referring patients to orthodontists;Ngan;J Clin Orthod,1998
5. Handbook of orthodontics;Moyers,1988