REACH THE TOP IN DENTAL EDUCATION

1. REACH THE TOP IN DENTAL EDUCATION

2. The KaVo system for measurement and evaluation of preparations in dental education.

3. Current Situation Standing in line for feedback Instructor-student ratio 1:15 Evaluations are subjective No visualization of results

4. Boston University Trends in Dental Schools Simulation Training in pre-clinic Computer Based Training Self Learning Centers Take the virtual tour!! http://dentalschool.bu.edu

5. „Click“ „Click“ Feedback at student PC Prep at Simulator 3D Scan PREPassist. 5 Steps for feedback

6. PREPassist Scanner • Design housing. Observation door • 3D optical measurement. 2 min. 20 µm • Light stripes projection. CCD camera • Preps for Inlays, Onlays, Crowns • Wax, Ceramics, Plastic

7. PREPassist Evaluation Software

8. Benefits for Dental-Schools Bold 3D Graphics enhances learning Less complaints by objective evaluations Teaching efficiency by self assessment Master Preps easy generated by lecturer Individual criteria by instructor Upgrade existing pre-clinics Multiple use by student groups Export by stl file format

9. Master Project: 1. Start Software 2. Open original tooth file 3. Scan master prep 4. Define criteria 5. Save project

10. Student Project: 1. Start Software 2. Open master project 3. Scan student prep 4. Compare master and student prep 5. Save student project

11. Phasen-Bild Functional principle: Scan: at 15 different tooth positions – 12 pictures with different stripe widths After scan: determine the 3D pixel out of the 2D pictures triangulation of the surface Design of a smooth surface

12. PREPassistant system Self-Learning Benefits A highly visible, interactive learning process Evaluations are objective, reproducible and measurable Preparation training around the clock Results can be accessed by each student at their workstation Time savings for instructors and students Multiple use by student groups Measurement Inlay-, Onlay- and Crown preparations Best results with KaVo simulation models Optical 3D measurement within 2,5 minutes Operating modes for both instructor and student Open for further applications Digital Format Bold, on-screen graphics Individual criteria by instructor 4 windows and full screen mode 3D view, rotate and zoom 2D cuts, colored and controlled

13. PREPassistant system Students Prep Master Prep

14. PREPassistant system PREPassistant system consisting of: PREPassistant Scan, optical 3d scanner with holder for kavo teeth PREPassistant Computer, tower pc, pentium, keyboard and mouse, ethernet, PREPassistant Control software installed, PREPassistant Evaluation software installed PREPassistant monitor, lcd 15`" tft, resolution 1024 x 768 analog sub-d 15 pol Licence Package for 15 Students PREPassistant Scan: Optical 3D scan unit for benchtop use specified by: • Design housing with soft door and observation window. • Quick coupling for KaVo model teeth • Principle of Measurement:: Light stripe projection and CCD camera • Measurement unit protected by cover to avoid loss of calibration • Resolution about 20µm with KaVo teeth • Measurement area 40x60mm; for scan of crowns, partial crowns and inlay-preparations at single tooth • Scan only by closed front-door • Scan of undercuts by rotation and inclination of tooth holder • Time for measurement: 2:30 Minutes • All interfaces integrated at back of the unit in a protected position. • 100 – 240V. El. Power assumption 200VA

15. PREPassistant system PREPassistant Control Software Software to control PREPassistant Scan. Ready installed on PREPassistant PC and also available as CD ROM. For installation on other PC’s installation requirements must be considered. Additional features: • Check-In Window for name, tooth number, location of storage etc • Status control during measurement • Calibration check (automatical process) • Print out function as screen shot • Export of the measurement datas at MIL Format (convertible to STL format) PREPassistant Evaluation Software Prep-Evaluation software to be installed on student PC’s • Evaluation process less than 4 Minutes • Instructor level (pass-word) for definition of master preps and 10 prep criteria • Student level • 3D and 2D graphics of the measured tooth in 4 windows and half screen mode • View navigation by zoom, rotation, slide, cut-outs • Reset button • Intersections can be positioned stepless in 2 levels • Stepless rotation of intersection around the central, vertical axis. To check undercuts. • Overlay function students prep by master prep for intersection view • 4 informations in 2D intersection: Original tooth, students prep, instructor prep • Grading-feedback according to the defined prep criteria • Text window for each criterion • Print out function. Screenshot • Integrated demo files

16. PREPassistant system PREPassistant Workstation EQUIPMENT BENCH， Measurements : 186x87x62cm Benchtop made of melamine layered press board with round front edge. Thickness: 28 mm. Colour: whitegrey. The bench top is supported by: 1 cupboard with door, width 600mm and 1 cupboard with4 drawers of electrostatic coated sheet metal. Drawers guided by ball bearings on rails. Width of cupboard 600mm. STUDENTS DENTAL STOOL with seat and back support laminated ply beech wood. Anatomically designed to prevent blood circulation problems. Seat height adjustable by means of a gas-filled suspension. Back support and seat depth able to be adjustable horizontally and vertically. 5-legged polished aluminium base with double rollers. Workstation for Evaluation This considered as random places for the evaluation. EQUIPMENT BENCH， Measurements : 186x87x62cm Benchtop made of melamine layered press board with round front edge. Thickness: 28 mm. Colour: whitegrey. The bench top is supported by Coated aluminium framework with electrostatcally coated panels of sheet metal. and compressed air. Rear side with back panel.(Flat screen, PC and LAN to be provided by the School) STUDENTS DENTAL STOOL with seat and back support laminated ply beech wood. Anatomically designed to prevent blood circulation problems. Seat height adjustable by means of a gas-filled suspension. Back support and seat depth able to be adjustable horizontally and vertically. 5-legged polished aluminium base with double rollers.

17. Location: Connections: Electrical connection: PC, Monitor, Scanner PC: Mouse, Keyboard, Monitor Scanner to PC: Video cable, RS 232 cabel • Vibration and dust-free • No direct sunlight • Cabinet ventilated to prevent overheating of the PC

18. System configuration: PREPassistant Scan PC: • Special graphic board, chipset, and video / frame grabber board • Software pre installed For Student PC: • Software on CD • Floating license • Student-software runs only if student PCs and scan PCs are connected to PC network • It is possible to work with 15 student PC at the same time

19. Time frame - 15 Students - 2 jobs Scan 0:05 One additonal PC evaluate 0:15 3,75h PC Lan evaluate (max. 15 at same time) review, without connection to system (unlimited)

20. Time frame - 15 Students - 2 jobs Scan 0:05 PC Lan evaluate review, without connection to system (unlimited) DentSIM 5 Stations 15 Students – 2 Jobs 4,5h Master preparation to be made in Israel (Cost factor) Wide space is nesseccary for the units

21. Thank you for your attention!