show your work case study Show your work in Dentaltown! If you've got a case you think might be a great study for Show Your Work, email editor Sam Mittelsteadt: sam@dentaltown.com. Be sure to include a sentence that sums up why the case is so special to you, to help us review and select the best contenders for publication. I opened her bite by holding the arch open distal to #11 (Fig. 8) while making a bite impression on the right side. Then with the patient biting on that right impression, the left side got the same bite registration impression (Fig. 9). This allowed the lower right one-half arch to be prepared as seen in Fig. 10. I made a unilateral impression of the right side after teeth #25-#30 were prepped. Then, teeth #20-#24 were prepped. With the fi rst bite on the right side inserted, the left bite was taken. The lab then had a full-arch impression of the prepped teeth along with the two bites to the opened bite. The lower restorations were placed. The lower arch had been installed (Fig. 11) with the completed upper arch ortho (Fig. 12). It was now ready for preparation. A bridge on each side was prepared, Fig. 1 Fig. 2 Fig. 3 thus eliminating both partial dentures. The same bite regimen was used to stabilize the arch so the upper right side could be prepped. When that was completed, the same kind of bite was used to register the prepped upper right, and the upper left was then prepped. To be clear: The confi rmed bite opening was preserved by holding that arch open to what the lab built for the lower arch and the upper arch was prepped and impressed one side at a time. The lab got a bite that supported each side per the required opening of the bite, along with a full-arch impression of the prepped teeth. The upper anterior four crowns were built with extended lingual metal to couple with the lower anteriors because of the remaining overjet after the ortho (Figs. 13 and 14). Fig. 4 Fig.5 Fig. 6 Fig. 7 Fig.8 Fig. 9 Fig. 10 Fig.11 Fig.12 28 OCTOBER 2021 // dentaltown.comhttp://www.dentaltown.com