The hinge axis concept: A radiographic study of its relevance
1995; Elsevier BV; Volume: 73; Issue: 1 Linguagem: Inglês
10.1016/s0022-3913(05)80274-4
ISSN1097-6841
AutoresGustaf Hellsing, E. Hellsing, Sören Eliasson,
Tópico(s)Orthodontics and Dentofacial Orthopedics
ResumoThe "hinge axis concept" maintains that the mandible moves around a transverse horizontal axis through both condyles. Since it was introduced in the 1920s it has had a profound impact on clinical dental practices all over the world. By use of the radiographic subtraction technique, we demonstrated that an increase in the occlusal vertical dimension of 4 to 7 mm in the retruded position resulted in a small positional change (range 0.31 to 1.84 mm) in an unpredictable direction. Pure rotation did not occur; however, the condylar displacement is probably of minor clinical importance in prosthodontic restoration.
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