1. Einige bietrage zur theorie dur zahnregulierung;Sandstedt,1905
2. Tissue changes, particularly of the bone, incident to tooth movement;Oppenheim;Am J Orthod,1911
3. Reaction of the pulp to pressure;Markus;Am J Orthod,1946
4. The vascularity of the incisor pulp of the monkey and its alteration by tooth retraction;Butcher;J Dent Res,1952
5. Early tissue changes following tooth movement in rats;Macapanpan;Angle Orthod,1854