dental photography.pptx

intra oral and extra oral photograph

1. Dental photography By : Dr. Yousif Alnajhi Dr. Yanoof Alrawnah

2. content Introduction Importance of dental photography Setting the camera Photographic equipment Technique for taking photograph

3. Introduction Digital photographs stimulate that pathway and create possibilities that might be missed without the physical reference point of an image .

4. Introduction images have a key role, for carrying valuable information and without the need of words ,. A well taken image or photograph may add a more deep reflection and be able to persuade faster than words

5. Importance of dental photography Enhance diagnosis and treatment planning Increase the patient level of requested treatment and patient education Laboratory communication Digital smile design and shade selection Humane memory is terribly short so patient easily forget what the looked like before they started treatment Marketing Follow up

6. Enhance diagnosis and treatment planning

7. 2- patient communication and education Seeing is believing

8. 3- Laboratory communication Tooth shape Translucency Color Staining if present

9. 4- Digital smile d e sign and shade selection

10. 5- unreliable memories Patients easily forget what they looked liked before they started treatment

11. 6- Marketing 7- Follow up

12. Setting the camera

13. UNDERSTANDING EXPOSURE TRIANGLE Understanding the three main element of exposure will help you to get the best out of your camera & to take great photographs. • They consist of : 1. aperture 2. ISO 3. shutter speed

14. • A hole within a lens, through which light travels into the camera body. The larger the hole, the more light passes to the camera sensor. Aperture also controls the depth of field, which is the portion of a scene that appears to be sharp. F = 200 1- Aperture = F-number

15. If the aperture is very small , the depth of field is large , while if the aperture is large, the depth of field is small.

16. 2- ISO • The level of sensitivity of the sensor to available light. • It is typically measured in numbers, a lower number representing lower sensitivity to available light, while higher numbers mean more sensitivity.

17. iso image brightness,, but more Noise (less sharpness) Set ISO to 100

18. 3- SHUTTER SPEED The length of time a camera shutter is open to expose light into the sensor. Shutter speeds are typically measured in fractions of a second , when they are under a second. Set as 1/125

19. fast shutter speeds help to freeze motion , while Slow shutter speeds will make a hazy photo if the object or camera are not fixed .

20. White balance It is the parameter that determines the color temperature of the picture . Set as 5600 k Automatic white balance: not recommended in dentistry

21. summery F-number = 11 to 13 ISO = 100 to 200 Shutter speed = 1/125 White balance = 5600 k facial F-number = 22 to 32 ISO = 100 to 200 Shutter speed = 1/125 White balance = 5600 k Dento -labial Intraoral F-number = 14 to 16 ISO = 100 to 200 Shutter speed = 1/125 White balance = 5600 k occlusal

22. Photographic equipment Digital camera Macro lens Flash (RING , dual point ) Retractors Photo contrast Mirrors Portrait background

23. 1-DSLR camera Camera body : A DSLR camera body for dental photography should have a minimum the following requirement : 18MP resolution LCD screen

24. 2- macro lens designed for shooting objects up close . macro lenses will produce images that are life size and that enable you to get in incredibly close from the subject you’re shooting

25. Magnification : 1:10 for full face 1:2 for dentolabial 1:1 for maximum intercuspation 1:1 1:10 1:2

26. 3- flash 1- Ring flash : is a circular flash that fits around the lens ,especially for use in macro photography . Easier to use the light is directly reflected by teeth toward the lenses, flattening the image and making the reflecting surface greater . Not very good at showing incisal translucency or line angles

27. 2- Dual point flashes or twin flashes: mounted and attached to the lens. This kind of flash and its orientation prevent extensive reflection on the tooth surface. This is an ideal technique for aesthetic and image color determination . More difficult to use

28. Cheek retractor Retractors keep lips and cheeks out of the image and allow mirror placement to be effective . They should not be visible in the image .

29. The full crescent retractor is used for retracted shots in the front of the mouth . The modified crescent retractor is used for buccal retracted views and for occlusal mirror shots

30. Photo contrast Used to isolate anterior teeth . Enhances the ability to see translucency. Used in conjunction with retractors.

31. Intra oral mirror are used to provide a reflected image when areas of difficult access are photographed . Occlusal mirror is used for the maxillary and mandibular occlusal images. Buccal mirror is used for quadrant ,buccal and lingual images .

32. Portrait background Black or blue or white background board can be held by assistant or tacked to a wall for portrait use.

33. Technique for taking photograph

34. Taking Photographs : * Extra-oral photograph. * Intra-oral photograph.

35. Tips for Extra-oral photographs: - The patient should be at least 12 inches away from the background in order to eliminate shadowing in the portrait . - About 6 feet between the camera and subject. - The background is preferred to be black or white or blue in color . - Patient should be instructed to upright with her back shoulder and head straight . - Patient hair should be pulled back enough to be able to see the ears.

36. Extra-oral views :

37. - Full face from the top of the head and neck. - Both ears should be equally visible . Vertical midline of the face should be in the center of the frame . Focus at both eyes. - face symmetry analysis. Lip together Mouth open Full smile

38. - Full face from the top of the head and neck. - Right ear should be visible . Patient should look straight ahead . Focus at right eye. - 45˚ right profile analysis.

39. - Full face from the top of the head and neck. - left ear should be visible . Patient should look straight ahead . Focus at left eye. - 45˚ left profile analysis.

40. - Full face from the top of the head and neck. - Right ear should be visible . Patient should look straight ahead . Focus at right eye. - 90˚ right profile analysis.

41. - Full face from the top of the head and neck. - left ear should be visible . Patient should look straight ahead . Focus at left eye. - 90˚ left profile analysis.

42. Tips for Intra-oral photographs: - Dry and clean the area to be photographed with suction and\or gauze to eliminate the blood or saliva . Intraoral mirrors and retractors should not be visible in the image. In order to keep fogging to a minimum, place the mirror in warm water for a minute or so, then dry and wrap the mirror in a clean paper towel just prior to insertion. The main object of the image should be centered vertically and horizontally within the photograph

43. Lips views :

44. Lip symmetry analysis. Focus on upper lip.

45. 45˚ right profile lip analysis. Focus on upper lip.

46. 90˚ right profile lip analysis. Focus on upper lip.

47. 45˚ left profile lip analysis. Focus on upper lip.

48. 90˚ left profile lip analysis. Focus on upper lip.

49. Intra-oral views :

50. Maximal intercuspal position(MIP) view. Camera parallel to anterior teeth Teeth from molar to molar should be visible. Focus on incisors. Occlusal analysis. Symmetry of the teeth and soft tissue. Mouth open view - Mouth open with teeth slightly apart. Camera parallel to anterior teeth. Teeth from molar to molar should be visible. Focus on incisors. Analysis of incisal plane and incisal embrasure

51. Maxillary anterior teeth view Keep mouth open. Focus on incisors Analysis of incisal plane and incisal embrasure symmetry of soft tissue. Maxillary anterior teeth view (Black background) - Keep mouth open. Focus on incisors Analysis of incisal plane and incisal embrasure symmetry of soft tissue. Translucency of the enamel in the incisal edge.

52. Mandibular anterior teeth view Keep mouth open. Focus on incisors Analysis of incisal plane and incisal embrasure symmetry of soft tissue. Mandibular anterior teeth view (Black background) Keep mouth open. Focus on incisors Analysis of incisal plane and incisal embrasure symmetry of soft tissue. Translucency of the enamel in the incisal edge.

53. Maxillary occlusal view All teeth should be visible. Focus on the premolars. Eliminate the fog on the mirror. Open mouth and breathing by nose. Analysis of occlusal plane and the structure of the teeth. Mandibular occlusal view All teeth should be visible. Focus on the premolars. Eliminate the fog on the mirror. Open mouth and breathing by nose. Raise the tongue and touch the tip of your tongue to the back of the palate . Analysis of occlusal plane and the structure of the teeth.

54. Right lateral MIP view Maxillary and mandibular teeth should be visible from central to mesial of second molar. Focus on the canine. Eliminate the fog on the mirror. Lateral view and analysis of the structure of the teeth. Right lateral open view Maxillary and mandibular teeth should be visible from central to mesial of second molar. Focus on the canine. Eliminate the fog on the mirror. Lateral view and analysis of the structure of the teeth.

55. left lateral MIP view Maxillary and mandibular teeth should be visible from central to mesial of second molar. Focus on the canine. Eliminate the fog on the mirror. Lateral view and analysis of the structure of the teeth. left lateral open view Maxillary and mandibular teeth should be visible from central to mesial of second molar. Focus on the canine. Eliminate the fog on the mirror. Lateral view and analysis of the structure of the teeth.

56. Thank you