Getenesh Berhanu Teshome, Hiwot Abebe Haileslassie, Phyllis Shand, Yun Lin, Jessica R L Lieffers, Carol Henry
Pulse-Based Nutrition Education Intervention Among High School Students to Enhance Knowledge, Attitudes, and Practices: Pilot for a Formative Survey Study
JMIR formative research
objectives study designed compare surface morphologies volumes posterior prefabricated zirconia crowns posterior stainless steel crowns sscs using digitalized threedimensional 3d reconstructed images study design tested prefabricated zirconia crowns nusmile zr orthodontic technologies houston tx usa sscs kids crown shinhung seoul korea used restore left maxillary mandibular molars rainbow scanner dentium seoul korea used digitise inner outer surface morphologies crowns data superimposed evaluated using 3d software differences outer inner surfaces inner volume measured results differences two types crowns differed tooth surface occlusal surface differences greater cusp tip fossa axial level differences decreased toward gingival margins also relative volumetric ratios varied conclusions tooth preparation prior placement prefabricated zirconia crowns requires special consideration greater amounts tooth reduction necessary posterior zirconia crowns sscs occlusal surface requires tooth reduction axial surface gingival margin