1. The document classifies radiographs as either intra-oral or extra-oral, and discusses the coating, speed, packaging, use of screens, and sizes of different types of radiographic films. 2. Intra-oral films include bitewing, occlusal, and IOPA films and come in small sizes like 0 and 1, while extra-oral films include panoramic radiographs and come in larger sizes like 8x10 inches. 3. Film speed refers to the film's sensitivity, with slower films like type A, B, C and faster films like type D, K, F and 800 speed available. Screens are used with screen-sensitive films and come in blue-

1. 1. INTRA ORAL RADIOGRAPHS 2. EXTRA ORAL RADIOGRAPHS RADIOGRAPHS

2. CLASSIFICATION OF FILMS ACCORDING TON THE USE INTRA ORAL FILMS EXTRA ORAL FILMS 2. THE COATING OF EMULSION SINGLE COATED : USED FOR DUPLICATION DOUBLE COATED : eg. IOPA FILM 3 . THE SPEED OF THE FILM SLOW FILMS : eg. A, B, C SPEED FAST FILMS : eg. D – ULTRA SPEED K – EKTA SPEED F – ULTRA EKTA SPEED c) HYPER SPEED G: eg. 800 SPEED FILM

3. 4. PACKAGING SINGLE FILM PACKET DOUBLE FILM PACKET 5. USE / NONUSE OF SCREENS SCREEN FILMS SENSITIVE TO BLUE LIGHT eg. CALCIUM TUNGSTATE SCREEN SENSITIVE TO GREEN LIGHT eg. RARE EARTH SCREENS b) NON SCREEN FILMS

4. SIZES OF THE FILMS RADIOGRAPH SIZES IOPA 0 – (22 ×35 mm) CHILDRENS 1 – (24 ×40 mm) ADULTS -- ANT 2 – (31 ×41 mm) ADULTS -- POST BITEWINGS 0, 1, 2 OCCLUSAL 57 ×76 mm OPG 5 ×12 INCHES OR 6 ×12 INCHES EXTRA ORAL OTHER THAN OPG 8 ×10 INCHES OR 5×7 INCHES

5. INTRA ORAL RADIO GRAPHS IOPA BITEWING OCCLUSAL

6. EXTRA ORAL RADIOGRAPHS LAT. OBLIQUE RAMUS BODY FOR ZYGOMATIC ARCH SMV JUG HANDLE 1.WATER’S 2.CALDWELL 3.BRAGMA MENTUM 4. CAT SINUS TRANS ORBITAL 2. TRANS PHARYNGEAL 3. TRANS CRANIAL IOPA OTHER THAN OPG MANDIBLE SINUS TMJ LATERAL OBLIQUE PA MANDIBLE