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Positioning difficulties in periapical radiography

Positioning difficulties in periapical radiography. I. Mandibular third molar II. Gagging III. Endodontics IV. Edentulous alveolar ridges V. Children VI. Patients with disabilities. Possible solutions. Using specially designed holders. Taking two radiographs of the third molar

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Positioning difficulties in periapical radiography

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  1. Positioning difficulties in periapical radiography I. Mandibular third molar II. Gagging III. Endodontics IV. Edentulous alveolar ridges V. Children VI. Patients with disabilities

  2. Possible solutions • Using specially designed holders • Taking two radiographs of the third molar • using two different horizontal tubehead • angulations

  3. Fig.8.28

  4. Problems with gagging and possible solutions • The patient sucks a local anaesthetic lozenge before positioning of the film packet • The patient is asked to concentrate on breading deeply while the film packet is in the mouth • Placing the film packet flat in the mouth and using bisected angle technique

  5. Problems encountered during endodontics • Film packet placement and stabilization when endodontic instruments, rubber dam and rubber dam clamps are in position • Identification and separation of root canals • Assessing root canal lengths from foreshortened or elongated radiographs

  6. Possible solutions • Using a Rinn Eezee-Grip • Using Rinn endo instrument

  7. Identification and separation of root canals

  8. Assessing root canal length • Using paralleling technique • Calculating mathematically the actual length from a radiograph taken by bisected angle technique

  9. Problems encountered with children

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