Figure 4. Dental records of a 15-y/o white female who first presented with missing maxillary and mandibular left third molars, small upper right and left second premolars, partially erupted right maxillary and mandibular second molars, and impacted right maxillary and mandibular first and third molars. The patient was in treatment for approximately 18 mos and has been in retention approximately 24 mos, now at age 18+. Note that the maxillary and mandibular teeth on the right side of the patient were affected from the second premolar distally (A) initial appearance of the teeth in the panoramic film and (B,C) dental models. Full orthodontic appliances were placed, including the impacted teeth, and the third molars were extracted. At the time of surgery, the surgeon noted that the partially erupted and unerupted teeth were not ankylosed. Orthodontic force to "erupt" the teeth failed to move the molar teeth closer toward the occlusal plane, as seen in an intra-oral photograph taken at age 18 (D).