1 / 31

Intraoral scanners Digital impression

Intraoral scanners Digital Impression<br>Advantages & Disadvantages<br>Types<br>Recent advances<br>Examples

AhmedMostafa2217
Download Presentation

Intraoral scanners Digital impression

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Intraoral Scanners

  2. Items to be covered CAD/CAM Intraoral scanners Definition Types Recent advances Examples (reading) Steps Digital impression Advantages Disadvantages

  3. CAD/CAM Computer-aided design/computer aided manufacture 1. Dental scanner: capture image (digital impression) 2. CAD: a software creates (designs) a virtual (proposed) restoration 3. CAM: a milling unit grinds or mills a block to fabricate the desired restoration Steps

  4. Intraoral Scanner (IOS) Definition A handheld electronic device that captures a 3D digital (optical) impression [captures 3D geometry] of the intraoral hard & soft tissues.

  5. Advantages of digital impression For dentist & technician save time & effort For patient patient comfort & interaction Dentist-lab. communication electronically - Accuracy - Rescanning of missing or unacceptable areas only Impression

  6. Disadvantagesof digital impression Expensive Expensive in addition to yearly (subscription) fees Powder spray relatively uncomfortable to the patient Scanner size a concern for some patients Presence of saliva not allow accurate scan Deep subgingival margins difficult detection

  7. Disadvantagesof digital impression (continued) Impossible in some situations Functional impression Border molding Scanner window (mirror) Fogging: slows & interferes with the scan Cracks after repeated sterilization - Slow the scan speed - Require replacement of the scanner tip

  8. Types of intraoral scanners Open & closed systems Scan with/without design software & in-office mill Powder coating & powder-free scan

  9. Types of intraoral scanners (continued) Offered by the same manufacturer Scan, design (software) & mill (in-office mill) Scan & design (software) Scan only

  10. Powder coating Older generations of some intraoral scanners require coating of teeth surfaces (shiny) with opaque titanium dioxide powder. Aim Reduce reflectivity Uniform light dispersion Improve scan accuracy

  11. Recent advances of intraoral scanners Speed: fast full arch scan (under 45 seconds) Size & weight: smaller & light-weight scanners Color: HD color image (scan), life-like & realistic Touch-screen

  12. Recent advances of intraoral scanners (continued) Portable (tablet) Wireless: such as TRIOS 4 & CS 3800 USB option (laptop scanner): can be used with any laptop

  13. Recent advances of intraoral scanners (continued) Anti-fog (defogging): prevent fogging of the scanner window (mirror) Caries detection: such as iTero Element 5D Plus, TRIOS 4 and Planmeca Emerald S Shade determination: such as TRIOS 3 & 4, CS 3700 Smile design & orthodontic simulation

  14. Recent advances of intraoral scanners (continued) Scanning edentulous arch More depth of scan: allow accurate scans of deep margins

  15. Recent advances of intraoral scanners (continued) Open system: -scanners are now open, export open files - can be used by other design software - such as STL (monochrome) or colored files (PLY or OBJ) Powder-free scanning for the majority of intraoral scanners Price: less expensive scanners

  16. Examples of old generations of intraoral scanners

  17. Examples of recent generations of intraoral scanners

  18. Other examples of recent intraoral scanner systems

  19. References Textbooks • Ritter AV,Boushell LW, Walter R. Sturdevant'sart and scienceof operative dentistry. 7th ed. St. Louis, Elsevier; 2019. p. 433–52. • Rosenstiel SF, Land MF, Fujimoto J. Contemporary fixed prosthodontics. 5th ed. St. Louis, Elsevier; 2016. p. 396–400. Sakaguchi R, Ferracane J, Powers J. Craig's restorative dental materials. 14th ed. St. Louis, Elsevier; 2019. p. 295–99. • Van Noort R, Barbour ME. Introduction to dental materials. 4th ed. Mosby Elsevier; 2013. p. 152.

  20. References (continued) Review articles Priyanka G, Sujesh M, Kumar R, Rao C, Srujana Z. Digital impressions in prosthodontics – past, present & future trends.IP Annals of Prosthodontics and Restorative Dentistry 2020; 6(2): 66–70. Park JM, Shim JS. Optical impression in restorative dentistry. Computer Vision in Dentistry. IntechOpen, 2019. Sriram S, Shankari V, Chacko Y. Computer aided designing/computer aided manufacturing in dentistry (CAD/CAM)–A Review.Int J Curr Res 2018; 10: 20–4.

  21. References (continued) Review articles (continued) Richert R, Goujat A, Venet L, Viguie G, Viennot S, Robinson P, Farges JC, Fages M, Ducret M. Intraoral scanner technologies: a review to make a successful impression.J HealthcEng, 2017. Ting‐shu S, Jian S. Intraoral digital impression technique: a review. J Prosthodont. 2015; 24(4): 313–21. Main Website https://instituteofdigitaldentistry.com/cad-cam/

More Related