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Onlay for upper right molar using chairside workflow with 3Shape TRIOS Design Studio

Using 3Shape TRIOS Design Studio, chairside solution, Dr. Watt IO scans, designs, mills and seats an onlay in two and half hours.

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  • Treatment provider: Dr. Douglas G Watt
  • Solutions used: 3Shape TRIOS intraoral scanner, 3Shape TRIOS Design Studio
  • Dr. Watt uses both analog and digital impressions to take full advantage of the digital workflow


  • Treatment plan. A lithium disilicate onlay is decided on to provide cuspal protection to minimize the amount of tooth surface removed.
  • IO scan and setup in chairside software. 3Shape TRIOS IO scan is brought into 3Shape TRIOS Design Studio for planning using step by step guided workflow.
  • TRIOS Design Studio workflow described. Screenshots detail the design and production workflow in TRIOS Design Studio.
  • Delivery of final prosthetic. Tooth is prepared for final delivery and seating of the onlay. Total time for the procedure: 2.5 hours.

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