1. Bioprogressive therapy. Part 2: principles of the bioprogressive therapy;BENCH R. W.;J. Clin. Orthod.,1977
2. Bioprogressive therapy. Part 6: forces used in bioprogressive therapy;BENCH R. W;J. Clin. Orthod.,1978
3. Bioprogressive therapy. Part 7: the utility and sectional arches in bioprogressive therapy mechanics;BENCH R. W.;J. Clin. Orthod.,1978
4. Bioprogressive therapy. Part 10: mechanics sequence for Class II Division 1 cases;BENCH R. W.;J. Clin. Orthod.,1978
5. Bioprogressive therapy. Part 11: mechanics sequence for Class II Division 2 cases;BENCH R. W.;J. Clin. Orthod.,1978