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State PSC PYQ - 3 Questions
The paralleling technique in intraoral periapical radiography is based on the principle of using parallel lines and right angles to produce an accurate image of the tooth structure.This method requires the image receptor (film or sensor) to be positioned parallel to the long axis of the tooth being radiographed.To prevent image distortion (magnification or foreshortening), the central ray of the X-ray beam is then directed perpendicularly to both the image receptor and the long axis of the tooth.
Direct splinting provides chairside immediate stabilization of mobile periodontally compromised teeth.
Dietary fluoride supplements are generally recommended for children living in areas with low water fluoridation. The indication usually stops once the child is older than 13 years since permanent teeth are fully erupted and matured. Therefore supplements are NOT indicated above 13 years.