1. Equilibrium theory revisited: factors influencing position of the teeth;Profitt;Angle Orthod,1978
2. Muscle pressures and tooth position: North American whites and Australian aborigines;Profitt;Angle Orthod,1975
3. Threshold levels for displacement of human maxillary central incisors in response to lingually directed forces;Lear;J Dent Res,1974
4. On an equilibrium theory of tooth position;Weinstein;Angle Orthod,1963
5. A comparison of maximum perioral muscle forces in North American blacks and whites;Mitchell;Angle Orthod,1978