Part 2 Proper Overbite Key 3 in Class II Correction Fig. 1 and Overjet: By Randy K. Newby, DDS Fig. 2 Fig. 3 Fig. 4 I n part 2 of achieving proper over-bite and overjet I will present brief glimpses of eleven clinical cases using the tools and princi-ples described in part 1. 8 Some of the cases are completed and some are ongoing. A common goal in all of the cases is to place the maxillary and mandibular incisors and first molars into their correct positions in all three planes of space, generally using a partial appliance so that “the foot (mandibular teeth) will fit the shoe (maxillary teeth)”. 1 Commentary about aspects of each case is provided. The tools I use are: í .018 Nitanium utility archwire (NUA) Fig. 1-A í .018 or .020 SS Step archwire with no adjustment (SAWNA) Fig. 1-B í .018 or .020 SS Step archwire with adjustment (SAWA) Fig. 1-C í .018 Nitanium retraction util-ity archwire (NRUA) Fig. 2-A í .018 or .020 SS Retraction step archwire (RSA) Fig. 2-B í .018 or .020 SS Retraction archwire (RA) Fig. 3 í .018 Nitanium expansion util-ity archwire (NEUA) Fig. 4-A í .018 or .020 SS Expansion step archwire (ESA) Fig. 4-B 18 Fall 2015 JAOS
Journal of the American Orthodontic Society Fall 2015: Page 18
