1. Alternativas mecânicas na verticalizac¸ão de molares. Sistemas de forcas liberados pelos aparelhos;Sakima;R Dent Press Ortodon Ortop Maxilar,1999
2. Molar uprighting with T-loop springs;Tunkay;J Am Dent Assoc,1980
3. Molar uprighting with crossed tipback springs;Weiland;J Clin Orthod,1992
4. Segmental approach to mandibular molar uprighting;Roberts;Am J Orthod.,1982
5. Uprighting of lower molars;Melsen;J Clin Orthod.,1996