3D Printing Technology ----Applications in Dentistry Xingzhe Ding April 25, 2015
Agenda Introduction of - 3D printing technology - Dentistry Applications of 3D Printing in Dentistry Challenges and Opportunities Conclusions
Agenda Introduction of - 3D printing technology - Dentistry Applications of 3D Printing in Dentistry Challenges and Opportunities Conclusions
Introduction - 3D Printing 3D Printing, also called as Additive Manufacturing (AM), is any of additive processes used to make a three-dimensional object from a digital model. This name has been known since the start of 21 st century. Why using this Name? M>0 The weight increases during manufacturing. If M=0? as injection molding and casting: Formative manufacturing. If M<0? as CNC machining: Subtractive manufacturing. 3D printing Since 1980s 30-35 years BC1300-1100 Formative manufacturing over 3000 year Subtractive manufacturing over 3000 years
Introduction - 3D Printing Additive Manufacturing: other names such as 3D printing; rapid prototyping; direct digital manufacturing (DDM); layered manufacturing and additive fabrication. Three Parts/Systems: 3D Modeling: be created with a computer aided design (CAD), or via a 3D scanner; Model slicing/cutting: cuts the data into layers. The layered graphical data is sent to 3-D printer, which applies the raw material for that particular layer. Printing: The printer adds up the product layer by layer until it is finished.
Introduction - 3D Printer 1. Solid-Based: Laminated Object Manufacturing (LOM)/Selective Deposition Lamination (SDL); Fused Deposition Modeling (FDM) Fused Deposition Modeling (FDM)
Introduction - 3D Printer 2. Powder-Based: Selective Laser Sintering (SLS)
Introduction - 3D Printer 3. Liquid-Based: Stereolithography (SLA); Digital Light Processing (DLP) SLA DLP
Introduction - 3D Printing Advantages of 3D Printing: Cheap Manufacturing: savings of up to 70%. Quick Production: cut from several weeks to hours. Less waste: a lower impact on the environment. Better quality Complicated shapes and structures New business models
Agenda Introduction of - 3D printing technology - Dentistry Applications of 3D Printing in Dentistry Challenges and Opportunities Conclusions
Introduction - Dentistry Preventive: the practice of caring for one's teeth to keep them healthy: to avoid cavities, gum disease, enamel wear, and more. Restorative: Individual restoration of teeth by means of amalgam, porcelain, ceramic, resin, or inlay. Orthodontics: treating patients with improper position of teeth when the mouth is closed, which results in an improper bite. Prosthetics: the restoration and maintenance of oral function by the replacement of missing teeth and other oral structures by artificial devices. Implants: a surgical component that interfaces with the bone of the jaw to support a dental prosthesis such as a crown, bridge, or denture. Endodontics: the study and treatment of dental pulp. Others
Introduction - Preventive Preventive: the practice of caring for one's teeth to keep them healthy: to avoid cavities, gum disease, enamel wear, and more. Pit & Fissure Sealant: to seal the back teeth Prophy Paste: Cleaning Teeth Whitening Remineralization
Introduction - Restorative Restorative: Individual restoration of teeth by means of amalgam, synthetic porcelain like materials, resins, or inlays. Flowable Composite High Filler Loading Composite Cement Crown Bonding Agents Post and Core Build-up Material
Introduction - Orthodontics Orthodontics: treating patients with improper position of teeth when the mouth is closed, which results in an improper bite With dental Braces, visiting dental office every two weeks Invisalign, changing tray every two weeks by himself
Introduction - Prosthetics Prosthetics: the restoration and maintenance of oral function by the replacement of missing teeth and other oral structures by artificial devices. Crown and Bridge Full and Partial Denture
Introduction - Implants Implants: a surgical component that interfaces with the bone of the jaw or skull to support a dental prosthesis such as a crown, bridge, denture, facial prosthesis or to act as an orthodontic anchor. Implants Implant Surgical Kit Implant abutments
Introduction - Endodontics Endodontics: the study and treatment of the dental pulp
Agenda Introduction of - 3D printing technology - Dentistry Applications of 3D Printing in Dentistry Challenges and Opportunities Conclusions
Application - Why 3D Printing Customized: each tooth has its own size and shape, dental restoration need to be customized; Fast: greatly increase production speed, reduce patient s waiting time. High-precision: deliver a higher standard of care and patient satisfaction.
Application 3D Printers for Dentistry Selective laser sintering (SLS) (Metal or polymer powder) Photopolymerization (liquid resin)
Applications Summaries In a recent report on CNBC, applications of 3D printing in dentistry will grow 515% over next 10 years. Here are a few applications: Replace or repair a damaged tooth: Scanning the patient s mouth; Creating a 3D image file of the teeth and gums; Using CAD software to design the repair; Printing the finished product. Create and print models for orthodontics. Create and print crowns, bridges and implants.
Applications in Dentistry Traditional Process for Making Aligners Orthodontics Take Impression Make Stone Model Adjust Target Teeth Heap Wax Wax Model Stone Models Thermal/vacuum Aligners It will take at least 12 weeks to prepare them through dental laboratory
Applications in Dentistry Digital Workflow for Making Aligners Digital Scanner Orthodontic software 3D Printer Thermal/vacuum forming processes It only takes 1 day through this digital system Reducing from 12 weeks to 1 day
Applications in Dentistry Implant Surgical Guide Align CT and oral CT Scan Intra-oral scanner Design surgical guide Print the guides Scan Together Accurate, safe, and predictable surgery; Shorter operation time; Shorter healing time with flapless surgery; Smaller incisions with less bleeding and pain; Bone graft can be minimized;
Applications Selective Laser Sintering (SLS) Selective Laser Sintering (SLS) Implants, crown and bridge
Applications Dentures Full or partial denture Traditional process:30-45 days 3D Printing: 1 day or less
Applications Stone Models Tray for teeth whiting Stone models Mouth guard for Athlete
Applications Veneer Try-Ins Veneer Try-In
Applications Wax-ups Crown, bridge, and partial denture can be prepared through wax-lost process
Applications Temporary Crown Prior to fix permanent crown/bridge, the temporary one was used
Agenda Introduction of - 3D printing technology - Dentistry Applications of 3D Printing in Dentistry Challenges and Opportunities Conclusions
Challenges/ Opportunities 3D Printer (Photopolymerization) Higher Printing Speed: dentists need chairside, no dental lab requirement Lower price Carbon3D 25-100 Times Higher
Challenges/ Opportunities Fusion of Various Technologies Digital Scanners; CT or X-Ray; Various Software; And more
Challenges/ Opportunities Materials (Photopolymerization) Compatible with various printer/light source Models: excellent properties, stability, low shrinkage; Wax-ups: ashless, compatible with all investment materials; Aligners/customized tray: direct printing, not through thermal/vacuum process; Temporary Crown/Denture: Class II /III devices, biocompatibility, storage stability; Materials for new dental applications: cooperating with engineers and customers
Conclusions 3D printing has potential to bring a revolutionary change in the dental industry.
Thank You Any questions? Contact information: dd3dmaterials@gmail.com