1. Malocclusion of the teeth regarded as a problem in connection with the apical base;Lundstrom;Int J Orthod Oral Surg Radiogr,1925
2. The six elements of orofacial harmony;Andrews;Andrews J,2000
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4. Comparison of dental arch and alveolar widths of patients with Class II, Division 1 malocclusion and subjects with Class I ideal occlusion;Sayin;Angle Orthod,2004
5. A longitudinal study of untreated Class II type malocclusion;Frolich;Trans Eur Orthod Soc,1961