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Digital photography /certified fixed orthodontic courses by Indian dental academy

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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

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Digital photography /certified fixed orthodontic courses by Indian dental academy Digital photography /certified fixed orthodontic courses by Indian dental academy Presentation Transcript

  • DIGITAL P HOTOGR HY AP www.indiandentalacademy.com
  • INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  • R ECENT ADVANCES IN DIAGNOSTIC AIDS www.indiandentalacademy.com View slide
  • Dental photography • Patient education • Legal record for facial features before and after dental treatment • Excellent tool for teaching • Excellent tool for communication www.indiandentalacademy.com View slide
  • Digital photography • • • • • • Basics of digital photography Classification of digital cameras Features to consider in digital cameras Conventional versus digital photography Common errors in clinical photography Gold standard in clinical photography www.indiandentalacademy.com
  • B asics of digital photography • First used in 1981 • Commercially available since 1991(marketed by auto trader). www.indiandentalacademy.com
  • Digital images • Pixels – picture elements www.indiandentalacademy.com
  • green red blue www.indiandentalacademy.com
  • • Pixelation evident www.indiandentalacademy.com
  • • Resolution – no of pixels in the image. • Increase in pixels – increases the detail of the image. www.indiandentalacademy.com
  • Non f ilm cameras IMAGE SENSORS - CCD ( CHARGED COUPLED DEVICE) www.indiandentalacademy.com
  • Non f ilm cameras - CMOS (complementary metal oxide semiconductors) www.indiandentalacademy.com
  • HOW THEY WOR K www.indiandentalacademy.com
  • K NOW YOUR DIGITAL CAMER A www.indiandentalacademy.com
  • Lens Telephoto lens Macro lens www.indiandentalacademy.com
  • Lens • Rotatable www.indiandentalacademy.com
  • Shutter speed • Shutter speed – the length of time the shutter is open and light strikes the image sensor • Bright lens and high shutter speed – ideal • Higher shutter speed – grater the image quality • Cameras should have a range of high and low shutter speeds. www.indiandentalacademy.com
  • B urst • Sequential shooting • Overcome shutter lag www.indiandentalacademy.com
  • White balance • Used to keep color as natural as possible. • Level of one color is more camera adjusts automatically. www.indiandentalacademy.com
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  • Exposure • Amount of light required to take a photo. • Too much light • Less light. www.indiandentalacademy.com
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  • Exposure compensation www.indiandentalacademy.com
  • Flash • Adjustment for convenience • Ring flash www.indiandentalacademy.com
  • Flash Ring flash www.indiandentalacademy.com
  • Zoom • Must in any digital camera • Closer to the subject without moving physically closer. www.indiandentalacademy.com
  • Focal length • The distance between the rear nodal point of the lens and the focal plane when focus is set at infinity. • Nodal point – where the rays of light appear to have come after passing through the lens. www.indiandentalacademy.com
  • • HOW MUCH THE CAMERA SEES ( ANGLE OF VIEW OF THE LENS). www.indiandentalacademy.com
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  • ZOOM • OPTICAL ZOOM • DIGITAL ZOOM www.indiandentalacademy.com
  • Optical zoom • Zoom lens is lens determined so that its focal length can be varied over a predetermined range. • The image is optically modified so that it can show a smaller o larger field of view. • This allows to replace a no of single focal length lenses. www.indiandentalacademy.com
  • • Does not change the resolution of the image or the image size, the no of pixels used to describe the image are same. www.indiandentalacademy.com
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  • Digital zoom • Digital cameras with a single focal length lens. Offers possibility of mimicking a zoomed image. www.indiandentalacademy.com
  • • No of pixels used to capture a image are the same as original non zoomed image. www.indiandentalacademy.com
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  • Dif f erence between optical and digital zoom • Optical zoom – bring object closer ( like a telescope) • Digital zoom is merely a cropping tool. www.indiandentalacademy.com
  • Conf usion • for eg- 10 x optical zoom becomes 60 x if 6x digital zoom is tacked on the focal length of the lens. www.indiandentalacademy.com
  • • Smart zoom www.indiandentalacademy.com
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  • Aperture settings • AMOUNT OF LIGHT ENTERING THE CAMERA AND HITTING THE SENSOR. www.indiandentalacademy.com
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  • Depth of the f ield • THE AREA AHEAD OF AND BEHIND THE AREA IN FOCUS. www.indiandentalacademy.com
  • Digital cameras CLASSIFICATION • CONSUMER • PROSUMER • PROFESSIONAL www.indiandentalacademy.com
  • • • • • • Inexpensive Entry level Mid range High end Professional. www.indiandentalacademy.com
  • P rosumer • Lies between consumer and professional cameras. www.indiandentalacademy.com
  • • Features – macro lens www.indiandentalacademy.com
  • • Features – High quality image www.indiandentalacademy.com
  • • Features –Lcd with preview facility www.indiandentalacademy.com
  • Drawbacks • FLASH – POINT FLASH. - RING FLASH www.indiandentalacademy.com
  • Drawbacks VIEW FINDERS – GALLILEAN TELESCOPE VIEW FINDER - LCD www.indiandentalacademy.com
  • Drawbacks FOCUSING SYSTEM – LACK OF IMAGE SHARPNESS www.indiandentalacademy.com
  • P essional cameras rof • • • • Expensive High end features. Ideal for intra oral photography. Fuji fine pix f1 pro – perfect for orthodontic purposes. www.indiandentalacademy.com
  • Features to be considered www.indiandentalacademy.com
  • • LCD www.indiandentalacademy.com
  • MAINS ADAPTOR www.indiandentalacademy.com
  • AUTO FOCUS AND P ECISION R www.indiandentalacademy.com
  • • CCD RESOLUTION AND QUALITY • CUR ( clinically useful resolution) www.indiandentalacademy.com
  • • FLASH CAPABILITY www.indiandentalacademy.com
  • Exposure parameters • Lens opening • Shutter speed( lens opening in fraction of a second) www.indiandentalacademy.com
  • • SOFTWARE www.indiandentalacademy.com
  • • RESOLUTION www.indiandentalacademy.com
  • P ractical considerations • DOWNLOADING OF IMAGES www.indiandentalacademy.com
  • • REPRODUCTION • STORAGE AND FILLING www.indiandentalacademy.com
  • • BATTERIES www.indiandentalacademy.com
  • ACCESSOR IES • MEMORY CARDS www.indiandentalacademy.com
  • • • • • BAGS AND STRAPS TRIPODS CLEANING KIT CARD READER www.indiandentalacademy.com
  • CONVENTIONAL VER SUS DIGITAL P HOTOGR HY AP www.indiandentalacademy.com
  • NON FILM CAMER A www.indiandentalacademy.com
  • IMAGE STOR AGE www.indiandentalacademy.com
  • NO R ECUR ING COSTS R www.indiandentalacademy.com
  • R OOM FOR EXP IMENTATION ER www.indiandentalacademy.com
  • FUNCTIONALITY IN A SMALL P ACK AGE www.indiandentalacademy.com
  • LCD ELIMINATES GUESS WOR K www.indiandentalacademy.com
  • DUR ILITY AB www.indiandentalacademy.com
  • SCALAB ILITY www.indiandentalacademy.com
  • SHAR ING www.indiandentalacademy.com
  • DR AWB ACK S • HIGH INITIAL COST www.indiandentalacademy.com
  • • BATTERY LIFE www.indiandentalacademy.com
  • • NON STANDARDIZATION • LEARNING CURVE (Technophoia). www.indiandentalacademy.com
  • DIGITAL P HOTOGR HY AP www.indiandentalacademy.com
  • COMMON ER OR IN R S CLINICAL P HOTOGR HY AP www.indiandentalacademy.com
  • Two groups • Inappropriate choice of equipment. • Errors in recording medium and inappropriate positioning of subjects www.indiandentalacademy.com
  • Camera • Macro facility ( 1:1 images) www.indiandentalacademy.com
  • Camera • Ring flash www.indiandentalacademy.com
  • Camera • Orientation of camera – Extra-oral ( portrait) – Intra oral ( landscape) www.indiandentalacademy.com
  • Camera • Lens setting www.indiandentalacademy.com
  • R etractors • Two set of double ended retractors www.indiandentalacademy.com
  • INTR OR SHOTS A AL www.indiandentalacademy.com
  • B UCCAL SHOTS www.indiandentalacademy.com
  • OCCLUSSAL SHOTS www.indiandentalacademy.com
  • MIR OR R S • LONG HANDLED AND FRONT SILVERD GLASS - IDEAL www.indiandentalacademy.com
  • R EAR SILVER ED VER SUS FR ONT SILVER ED GLASS www.indiandentalacademy.com
  • MIR OR R S www.indiandentalacademy.com
  • AP TUR COMP ER E ENSATION www.indiandentalacademy.com
  • TECHNICAL P OB R LEMS • DEPTH OF FIELD www.indiandentalacademy.com
  • • PROSUMER CAMERAS – APERTURE TO BE REDUCED TO F 11. www.indiandentalacademy.com
  • • APPROX 1/3 IN FRONT AND 2/3 BEHIND THE FOCAL POINT www.indiandentalacademy.com
  • P essional cameras rof www.indiandentalacademy.com
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  • Auto f ocus problems • Auto focus versus manual focus www.indiandentalacademy.com
  • Intra oral www.indiandentalacademy.com
  • • FOCUSSING USING TTL FACILITY. • 20 CM IS A GOOD DISTANCE. www.indiandentalacademy.com
  • Extra oral photography www.indiandentalacademy.com
  • SHADOW • POINT FLASH www.indiandentalacademy.com
  • EXTR OR A AL www.indiandentalacademy.com
  • Extra- oral www.indiandentalacademy.com
  • Alternatives • Rotating camera through 1800 • Illuminated backdrop screen • Dark non reflective background preferably velvet www.indiandentalacademy.com
  • INTR OR A AL www.indiandentalacademy.com
  • Overcoming shadows – 1800 turning www.indiandentalacademy.com
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  • OCCLUSSAL www.indiandentalacademy.com
  • Solution- f ocus away f rom patient www.indiandentalacademy.com
  • SYMMETR ICAL IMAGES • GRID LINES www.indiandentalacademy.com
  • CAR P OB D R LEMS www.indiandentalacademy.com
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  • CCD R LEMS OB www.indiandentalacademy.com
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  • DIGITAL IMAGE • FIT FOR PURPOSE www.indiandentalacademy.com
  • P OSITIONING ER OR R S www.indiandentalacademy.com
  • Extra oral photographs • Portrait www.indiandentalacademy.com
  • Extra oral photographs • Portrait www.indiandentalacademy.com
  • Extra oral photographs • Background www.indiandentalacademy.com
  • Extra oral photographs • Background www.indiandentalacademy.com
  • Extra oral photographs • Background www.indiandentalacademy.com
  • P OFILE AND THR QUAR R EE TER VIEWS www.indiandentalacademy.com
  • P OSITIONING ER OR R S www.indiandentalacademy.com
  • P OSITIONING ER OR R S www.indiandentalacademy.com
  • P OSITIONING ER OR R S www.indiandentalacademy.com
  • P OSITIONING ER OR R S www.indiandentalacademy.com
  • P OSITIONING ER OR R S www.indiandentalacademy.com
  • P OSITIONING ER OR R S www.indiandentalacademy.com
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  • INTR OR P A AL HOTOGR HS AP • LANDSCAPE VIEW www.indiandentalacademy.com
  • • Change in cant of occlusal plane www.indiandentalacademy.com
  • • Inappropriate selection of cheek retractors. • Saliva not aspirated www.indiandentalacademy.com
  • B UCCAL VIEWS www.indiandentalacademy.com
  • MIR OR VIEWS R • OCCLUSSAL SHOTS www.indiandentalacademy.com
  • MIR OR VIEWS R • OCCLUSSAL SHOTS www.indiandentalacademy.com
  • Just one more photograph www.indiandentalacademy.com
  • LCD www.indiandentalacademy.com
  • Standardizing dental photography • Natural head position. • Frontal views. • The line from the outer canthus of eye to superior attachment of ear from should be parallel to Frankfort horizontal plane. • The inter pupilary line should be parallel to horizontal plane • The distance from outer canthus of eye to the hair line should be equal on both side www.indiandentalacademy.com
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  • CAMER LENS AND P A OSITION • Focal length of the lens should be the same (100 or 105mm) www.indiandentalacademy.com
  • CAMER LENS AND P A OSITION • Have consistent subject – camera distances (use of tripod) www.indiandentalacademy.com
  • CAMER LENS AND P A OSITION • Camera position is one in which a line from middle of lens to eye is parallel to horizontal plane www.indiandentalacademy.com
  • GOLD STANDAR IN D P HOTOGR HY AP • Journal of orthodontics june 2002 - j sandler and a murray www.indiandentalacademy.com
  • • Survey carried out in angle society. • Seventy questionnaires were used • Following questions were asked. – which intraoral and extraoral photographs they currently take? – when during the treatment the photographs are taken? – which staff member takes the photographs? – what medium is used to record the images? www.indiandentalacademy.com
  • R outine use of photography 96% take pre and post treatment photographs. www.indiandentalacademy.com
  • Extra oral photographs www.indiandentalacademy.com
  • Intra oral photographs www.indiandentalacademy.com
  • mid treatment photographs www.indiandentalacademy.com
  • Who takes the photographs? www.indiandentalacademy.com
  • P hotographic medium www.indiandentalacademy.com
  • Gold standard • Nine pretreatment and nine post treatment photographs are a must. • mid treatment photographs at change of every arch wire . • Up to 36 photographs are considered a reasonable number for full photographic documentation of the case. www.indiandentalacademy.com
  • Need f or photographs • Extra oral full face view ( lips at rest ) www.indiandentalacademy.com
  • Need f or photographs • Extra oral – full face view ( smiling) www.indiandentalacademy.com
  • Need f or photographs • Extra oral – three quarter view www.indiandentalacademy.com
  • Need f or photographs • Extra oral – profile view www.indiandentalacademy.com
  • Need f or photographs • Intra oral front intra oral view. buccal intra oral shots. upper and lower buccal shots. overjet view ( optional ). www.indiandentalacademy.com
  • Orthodontics current principles and techniques - GRABER AND VANARSDALL www.indiandentalacademy.com
  • Orthodontics current principles and techniques - GRABER AND VANARSDALL www.indiandentalacademy.com
  • Conclusion www.indiandentalacademy.com
  • R ECENT ADVANCES IN DIAGNOSTIC AIDS www.indiandentalacademy.com
  • www.indiandentalacademy.com Leader in continuing dental education www.indiandentalacademy.com