Pitch, roll, and yaw: Describing the spatial orientation of dentofacial traits

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James L. Ackerman, Adjunct professor, Department of Orthodontics, University of North Carolina School of Dentistry, Chapel Hill, NC, William R. Proffit, Kenan professor, Department of Orthodontics, University of North Carolina School of Dentistry, Chapel Hill, NC, David M. Sarver, Adjunct professor, Department of Orthodontics, University of North Carolina School of Dentistry, Chapel Hill, NC., Marc B. Ackerman, Adjunct Professor, Department of Orthodontics, School of Dentistry, Temple University, Philadelphia, Pa; private practice, Bryn Mawr, Pa, Martin R. Kean, Professor emeritus, Department of Orthodontics, School of Dentistry, Otago University, Dunedin, New Zealand

American Journal of Orthodontics and Dentofacial Orthopedics

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