Protocol ECO-IO:  Edentulous / CBCT+Optical / IntraOral Scanner

We know that an optical scan of the patient’s master model provides the most accurate fit of the surgical guide.  Elsewhere on this site a technique that employs a laboratory optical scanner is presented (ECO-DT Protocol ). However, that technique involves either extra trips by the patient or extra appliance fabrication by the clinician;  at a cost to the patient.  Intraoral scanners are becoming much more commonplace in clinical dental practice.  But unlike the desktop scanner, an intraoral scanner cannot maintain the same coordinate system from scan to scan.  We solve this problem by attaching a coordinate system to the patient’s model.  This protocol is explained below, as well as in this article posted on LinkedIn: Scanbody for Hand-Held Scanning of a Denture for Surgical Guide Development.

Facilities / equipment needed:

figure 1

figure 2

Items required:

  • 1) Patient’s existing denture (provided it is suitable for the treatment plan), or 
    • Denture waxup (if patients VDO, etc is being changed)
  • 2) Suremark VF-20, V-20, or CF-23 marker tapes with dimensional ball
    • We use the V-20          <— (Click to zoom)
    • Here is a link to Suremark’s site page with these products on it: Suremark Dental Markers
  • 3) Cotton rolls
  • 4) Scanbody for denture model, which is a 3D Printed add-on coordinate system (figures 1 & 2).  The printable file for this is available at no cost on “Thingiverse”: Surgical Guide Denture Scanbody.  If you or your lab do not have access to a 3D Printer, you can request one from us for shipping charge only.  Go here to make that request.

figure 3

figure 4

Procedure:

figure 5

Trumergence LLC // Timothy O. Hart DDS MS

Denver, CO

(720) 772-1975 // email