Presentation on theme: "Introduction to Digital Dental Photography"— Presentation transcript:
1Introduction to Digital Dental Photography Prepared by Todd R. Schoenbaum, DDS & Richard G. Stevenson, DDSwith support from the UCLA Division of Restorative Dentistryand the Academy of Operative Dentistry Founder’s Fund
2Welcome to the world of Digital Dental Photography All information is accurate and current as of Future developments in photography will require revision of the information contained within.
4Patient Communication Patients understand their needs and complications much better when they can see a picture of their own pathology
5Lab CommunicationParticularly for treatment in the aesthetic zone, technicians need more information than just a single shade tab.Photography greatly simplifies the shade taking process; providing the ceramist with a “palate” of shades rather than trying to match a single shade.
6Interdisciplinary Communication Photography greatly enhances the ability to communicate between disciplines for complex treatment.
7Diagnosis and Treatment Planning Even with radiographs, charting and mounted models, there is much diagnostic information to be gained by including photography to comprehensive treatment planning.
9There are 3 camera types for dental photography IntraoraldSLRPoint & Shoot
10There are 3 camera types for dental photography IntraoralAdvantages:- no mirrors needed- small and lightweight- simpleDisadvantages:- subpar image quality
11There are 3 camera types for dental photography Point & ShootAdvantages:- small and lightweight- lower costDisadvantages:- not upgradeable- inconsistent magnification
12There are 3 camera types for dental photography Advantages:- highest image quality- upgradeable- various lighting optionsDisadvantages:- heavy- expensivedSLR
13There are 3 components of a dSLR for dental photography Although intimidating, once properly calibrated the dSLR is the most popular and versatile choice for dental photography.dSLRThere are 3 components of a dSLR for dental photographyCamera BodyMacro LensMacro Flash
14The models and specifications of camera bodies changes very rapidly. Camera BodyThe models and specifications of camera bodies changes very rapidly.A dSLR body for Dental Photography should at a minimum have the following requirements:- 10 MP resolution- APS-C sensor- 3” LCD screenMore expensive models may have many extra features, most of which are of little use in dental photography
15Macro LensThe lens needed for dental photography is a Macro (or Micro) specific lens with a focal length of mm.This is not the lens that comes on the camera when purchased as a kit at a consumer store.It cannot be a zoom lens.It must have magnification marking on the lens.
16Ring Flash Dual-point Flash - Easier to use - Smaller - More consistent lighting- Not very good at showing incisal translucency or line angles- More difficult to use- More flexible lighting options (i.e. diffusers)- Difficult to use for mirror shots- Best option for aesthetic dental work and shade photography- Works best with a special mounting bracket for dentistryDual-point Flash
18Intraoral Photography Mirrors Front surface coated to avoid double imagesOcclusal mirror is used for the maxillary and mandibular occlusal imagesBuccal mirror is used for quadrant, buccal, and lingual imagesmust be handled with extreme care to minimize scratchesBuccal #1WideOcclusal XLTips:- keep mirror warm to avoid fogging (i.e. water bath, heat pad, coffee cup warmer)- use the biggest mirror possible- never place mirrors on or near metal instruments
19Cheek RetractorsUsed to hold the cheeks off the buccal tooth surfaces and allow more light into the mouthUsually positioned by the doctor, and held by the patientAvailable in different sizes and made of metal or plasticThey should not be visible in the photo
20Anterior Contraster (optional) Used in anterior shots to “black out” the backgroundEnhances the ability to see translucencyUsed in conjunction with retractors
21dSLR Camera Settings Shutter Speed: 60-250 Aperture: f/8 for full face f/32 for intraoralShutter Speed:White Balance: Flash or CustomImage size: Large JPEG or RAWISO:
22dSLR Camera SettingsExposure Mode: “M” Manual or “Av” Aperture Priority(Usually set on the dial on top of the camera)Flash Mode: eTTLThis is an automatic mode that works well for beginners. Advanced users may choose to experiment with manual flash exposure settings.Focus Mode: “MF” Manual FocusNot to be confused with the exposure mode set above. This prevents the autofocus from changing the magnification setting. Focus will be achieved by moving the camera. This may initially seem more complex, but the mouth is generally too dark for autofocus to work properly.
23Magnification Rotate to change magnification Magnification: - Controlled by turning the lens barrel- Macro specific lenses have magnification markings on them- The magnification is set on the lens- Do NOT spin the lens to focus(it will change the magnification)- We will be using three magnification settings:- 1:15 for full face image- 1:3 for most intraoral images- 1:1.5 for closeup imagesRotate to changemagnification
25Basic Diagnostic Image Series 4. Retracted 1:3- insert retractors, dry teeth- teeth should be slightly separated- retractors need to be pulled out and forward1. Full Face smiling- stand approx. 2 meters away- use autofocus for this image only- patient’s head should be verticalMagnification 1:15; Aperture f/8Magnification 1:3; Aperture f/322. Lips in Repose (“M” position)- turn off autofocus; set magnification to 1:3 and aperture to f/32- Instruct pt to say “emma”- used to determine incisal display at rest5. Maxillary Occlusal- place patient in a fully supine position- insert retractors; dry teeth- insert occlusal mirror- shoot from 12 o’clock positionMagnification 1:3; Aperture f/32Magnification 1:3; Aperture f/326. Mandibular Occlusal- place patient in a fully supine position- insert retractors; dry teeth- insert occlusal mirror under tongue3. Maximum Gingival Display (“E” position)- instruct patient to say “eeee”- used to determine lip mobility and gingival displayMagnification 1:3; Aperture f/32Magnification 1:3; Aperture f/32
26Posterior Restoration Image Series 1. Shade Image- taken before preparation or rubber dam- best to shoot in RAW format for color fidelity- position shade tabs as close as possible to teeth to be matched- use one tab for occlusal, one tab for gingival- use the appropriate shade guide for the porcelain to be usedMagnification 1:3; Aperture f/322. Pre-operative Occlusal- Use buccal mirror- Teeth and rubber dam should be clean and dry- If not using a rubber dam, use the cheek retractorsMagnification 1:3; Aperture f/323. Post-operative Occlusal- Use buccal mirror- Teeth and rubber dam should be clean and dry- If not using a rubber dam, use the cheek retractorsMagnification 1:3; Aperture f/32
27Anterior Restoration Image Series 1. Full Face smiling- stand approx. 2 meters away- use autofocus for this image only- patient’s head should be vertical4. Retracted 1:3- insert retractors, dry teeth- teeth should be slightly separated- retractors need to be pulled out and forwardMagnification 1:15; Aperture f/8Magnification 1:3; Aperture f/322. Shade image- set magnification to 1:1.5- use retractors- clean and dry teeth- make note of shade tabs if labels cannot be seen in the image5. Preparation- set magnification to 1:1.5- use retractors- clean and dry teeth- use contraster to better capture translucencyMagnification 1:1.5; Aperture f/32Magnification 1:1.5; Aperture f/323. Pre-operative Close up- set magnification to 1:1.5- use retractors- clean and dry teeth- use contraster to better capture translucency6. Post-operative- set magnification to 1:3- use retractors- clean and dry teeth- use contraster to better capture translucencyMagnification 1:3; Aperture f/32Magnification 1:1.5; Aperture f/32
28Comprehensive Diagnostic Image Series #2#3#4#5#6#7#11. Full face smiling2. “M” (Lips in repose)3. “E” (max. gingival display)4. “F” (A-P relation)5. Right smile6. Center smile7. Left smile8. Pre-Operative shade image9. Right retracted10. Center retracted11. Left retracted12. Right close-up13. Center close-up14. Left close-up15. Maxillary occlusal16. Mandibular occlusal#9#10#11#8#12#13#14#15#16
29This will take practice and dedication to master Like any new skill…This will take practice and dedication to masterPrepared by Todd R. Schoenbaum, DDS & Richard G. Stevenson, DDSwith support from the UCLA Division of Restorative Dentistryand the Academy of Operative Dentistry Founder’s Fund