By Esequiel E. Rodriguez Yanez ; Coauthors, Larry White ... [et al.].
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Additional resources for 1001 tips for orthodontics and its secrets
001 Tips for Orthodontics and Its Secrets 2. Use extra oral forces directed backwards, with a face bow (that applies the force directly to the first upper molars) or with a cap with "J" hooks (that apply force directly on the anterior teeth while being retracted). (3) Fig. 2l. Delta elastics. Tips to reinforce posterosuperior anchorage 1. Incorporate a greater number of teeth to the anchorage unit so that the root area will increaseY) For example, a chromosome arch or a 4-band trans palatine arch.
43. Tip back. Fig. 44. At the time of insertion of the tip back in the molar tube. the large segment of wire directs itself to the apical zone of the anterior segment. indicating the direction where the forces are going to be produced. A mesial root movement and a distal crown movement is going to be produced in the molars. meanwhile since the intrusive force passes buccal to the center of resistance of the incisors. the moment is going to be lower, taking the incisor to a more buccal position.
7. Mandibular plane angle. 3. 6. Anterior and posterior dental overcrowding discrepancy. Usually, for a greater degree of overcrowding, a greater degree of anchorage will be needed. Spee curve depth. Fig. 8. Deep Spee curve. 4. Age of the patient. (27) 5. Patient profile. In biprotrusive type patients we will need very good posterior anchorage in order to modify this type of profile. Figs. 10 and 11. Maximum and moderate dental overcrowding. Chapter 2 • Anchorage 7. Size and form of the root. The wider the area covered by the root, higher resistance to movement the tooth will have.
1001 tips for orthodontics and its secrets by Esequiel E. Rodriguez Yanez ; Coauthors, Larry White ... [et al.].