Part 1.100% digital CAD/CAM Cantilever Bridge on wide molar implant.RRR 4-year follow up
50y.o. female had her #17-20 three-unit bridge failing due to secondary caries on #17. The wisdom tooth shifted and inclined mesially. The old bridge was cut off distal to #20 and 7X7mm Ti-MAX (Keystone, USA)wide molar implant was placed immediately, mesially to the extraction site with simultaneous GBR. Russian AAA surgical technique was used.
The preference was made to restore #18,19 using one wide molar implant. Two-implant restorative alternative would had required difficult augmentation of severely atrophic ridge in the area of the first molar.
Intraoral scans were taken with TRIOS (3Shape) for the lower and upper left quadrants, scan body position and the bite.I designed 2-unit FCZ screw-retained cantilever bridge using Dental System (3Shape) utilizing Andrews RRR (Reversed Restorative Rehabilitation) method. The design file was outsourced to a milling center. Once received the case was stained and glazed by a dental assistant in the office. The final restoration was delivered with minimal adjustments.
There were neither impressions nor models made for the case. There were no dental technicians involved in the design or fabrication, other than for milling and sintering FCZ.