2024 BOH1 SIM Paralleling I & II PDF

USER NOTE: There are more Title Slide options Radiology SIM Session available to add to your presentation by going to: Home tab > New Slide > Drop down...

USER NOTE: There are more Title Slide options Radiology SIM Session available to add to your presentation by going to: Home tab > New Slide > Drop down arrow Paralleling I & II Dr Katharina Rabelo Dentomaxillofacial Radiology TEQSA PRV12057 [email protected] CRICOS 00026A Learning Outcomes - Demonstrate the correct use of the paralleling technique to acquire clinically acceptable bitewings and periapical radiographs. - Describe the types of holders and their indications. - Identify the correct holder for each radiographic technique. - Demonstrate the assembly of holders. - Identify film faults, understand and implement measures to address and prevent positioning errors; - Demonstrate radiation safety. The University of Sydney  Paralleling technique - Provides more consistent and reproducible images. - Improves the diagnostic quality of radiographs. - Reduces the risk of positioning errors and retakes. - Can be used to acquire bitewings and periapical radiographs. The University of Sydney  Paralleling technique - This technique is based on the principle of parallelism. A B Parallel lines do not intersect. - The receptor is placed in the mouth parallel to the long axis of the tooth being radiographed (pink lines). The University of Sydney  Paralleling technique - The receptor is placed in the mouth parallel to the long axis of the tooth being radiographed (pink lines). - The central ray of the x-ray beam is directed perpendicular (at a right angle – blue lines) to the receptor and the long axis of the tooth. Perpendicular lines intersect one another to form right angles. The University of Sydney Paralleling technique Positions of the receptor, teeth, and central ray (CR) of the x-ray beam in the paralleling technique. The receptor and the long axis of the tooth are parallel. The central ray is perpendicular to the tooth and the receptor. An increased target–receptor distance (16 inches/40.64 cm) is required. PID, position-indicating device. The University of Sydney Iannucci, J., & Howerton, L. J. (2011). Dental radiography. Elsevier. Paralleling technique A beam alignment device (Sensor/Receptor holder) must be used to keep the receptor parallel with the long axis of the tooth. The patient cannot hold the film with their fingers in this technique The University of Sydney Iannucci, J., & Howerton, L. J. (2011). Dental radiography. Elsevier. Paralleling technique For a better parallelism between the receptor and the tooth, the receptor holder must be placed away from the tooth and toward the middle of the oral cavity. Receptor placed close to the tooth Receptor placed away from the tooth The University of Sydney Iannucci, J., & Howerton, L. J. (2011). Dental radiography. Elsevier. The ring should be placed close to the patient's face in the paralleling technique. This positioning helps ensure the accuracy of the alignment and stability of the X-ray beam in relation to the receptor and the tooth. Film Holders Design Bite block Locator ring (Aiming Ring) The University of Sydney Metal arm (Indicator arm) Paralleling technique Film Holders - Rinn XCP (Dentsply) – Gold Standard; - Rinn XCP-ORA (Dentsply); - Rinn FLIP-RAY Bitewing (Dentsply); - Super-Bite™ with Ring (Kerr); - Kwik-Bite™ with Ring (Kerr); - Kwik-Bite™ with Index (Kerr). - VistaPosition PSP (Dürr Dental).  USER NOTE: There are more Content Slide options available to add to your presentation by going to: Home tab > New Slide > Drop down arrow Rinn XCP (Dentsply) The most common film holders in dental clinics (Gold Standard). 3 pieces to assembly (indicator arm, ring locator and bite block). Made from durable materials that withstand repeated use and sterilization. The University of Sydney  USER NOTE: There are more Content Slide options available to add to your presentation by going to: Home tab > New Slide > Drop down arrow Rinn XCP (Dentsply) The University of Sydney BOH 1 2024 - Lecture 5 - Intra Oral Techniques Part 2. Dr Hedge  Rinn XCP-ORA - 3-in-1 positioning convenience for anterior, posterior, and bitewing - Reduces components needed to accurately position - To be used with Rinn biteblocks for Digital Sensors (XCP-DS Fit) or Film & Phosphor Plates (XCP) - Works with round and rectangular collimators - Autoclavable The University of Sydney Rinn FLIP-RAY Bitewing - The Rinn FLIP-RAY BW’s rotating media cliplets you take bitewing radiographs horizontally or vertically with a simple flip. - The indicator arm and the bite block are attached. Two pieces to assembly; - The universal media clip accommodates Size 0, 1, & 2 film or phosphor plates with no separate biteblocks; - Autoclavable The University of Sydney  Super-Bite™ with Ring - It is a film and phosphor plate holder indicated for periapical radiographs of anterior and posterior teeth. The system includes two types of holder anterior (green) and posterior (red) – for use in all four quadrants. - The indicator arm and the bite block are attached. Two pieces to assembly; - Simplicity of the system in use – saving time; - Autoclavable. The University of Sydney  Kwik-Bite™ with Ring - X-Ray holders for horizontal bite wings; - It is suitable for indirect digital systems. It is compatible with all major brands of phosphor plate sensors. - The indicator arm and the bite block are attached. Two pieces to assembly; - Simplicity of the system in use – saving time; - Autoclavable. The University of Sydney  Kwik-Bite™ with Index - X-Ray holders for horizontal bite wings; - It comes in one piece; - The index helps in aligning the X-ray beam with the film/sensor. - Position the index so that it aligns with the external surface of the patient's tooth. This ensures that the X-ray beam is correctly targeted. - Align the X-ray tubehead with the index. The index serves as a guide to ensure the X-ray beam is perpendicular to the film/sensor and the teeth. The University of Sydney  Paralleling I – Radiology Practical Session The University of Sydney  VistaPosition PSP - The new image plate holder system; - Specially developed bite blocks fix the image plates securely and gently in place. - The PSP does not need to be folded or squashed when it is inserted in the holder, thus improving the durability of the image plate. - It is significantly lighter, by 40%. The lighter indicator arm increases patient comfort and makes positioning in the patient’s mouth easier. - All parts of VistaPosition are suitable for immersion/thermal disinfection and can be autoclaved. The University of Sydney Paralleling technique Summary of steps: 1. Prepare the patient by explaining the procedure, making them comfortable, and removing artifacts (eyeglasses, earrings, piercings, dentures…). 2. Select the correct sensor size (size 1 for anteriors; size 2 for posteriors and bitewings). 3. Correctly select and assemble the sensor holder. 4. Make the set ready (sensor holder + PSP). 5. Choose the correct exposure settings for the type of radiograph required. 6. Adjust the patient's head position (midsagittal plane and ala-tragus line/corner of the mouth-tragus). 7. Correctly place the holder in the patient’s mouth (sensor/receptor should be parallel to tooth/teeth). 8. Adjust the tubehead (x-rays beam) according to the ring locator on the holder. 9. Close the door completely. 10.Press the exposure button. The University of Sydney Paralleling technique: For periapical radiographs and bitewing projections examples, please refer to Lecture 5 - Intra Oral Techniques Part 2. Dr Hedge The University of Sydney Questions? Post your questions on Padlet. Padlet link: https://sydney.padlet.org/kalv9912/boh1radiosessions Password: boh1radio The University of Sydney Dr Katharina Rabelo Dentomaxillofacial Radiology [email protected]