radiography of patients with special needs veronika stiles, rdh university of michigan june 16, 2009
TRANSCRIPT
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Radiography of Patients with Special Needs
Veronika Stiles, RDHUniversity of Michigan
June 16, 2009
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Introduction
• Various special needs exist
• RDH must be competent to alter techniques
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Patients with gag reflex
• Confident attitude• Patience, tolerance, & understanding• Key: limit amount of time • Prepare patient & equipment ahead of time• Start with anterior exposures• Then, premolar shot before molar• Maxillary molar films must be exposed last
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Patients with Gag Reflex: Film Placement & Technique
• Each film must be placed and exposed as quickly as possible
• Avoid the palate• Demonstrate film placement to the patient• Never suggest gagging • Suggest deep breathing through the nose• Try to distract patient• Reduce tactile stimuli (ice H2O, salt, topical
anesthetic)
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Patients with Physical Disabilities
• A) Vision impairment: communicate using clear verbal explanations;
• B) Hearing impairment: -Gestures
-Written instructions -Ask caretaker for assistance• Mobility impairment: -Assist the patient in transfer
-Ask caretaker for assistance
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Patients with Developmental Disabilities
• Examples: autism, cerebral palsy, epilepsy, mental retardation
• Coordination problems: mild sedation• Comprehension problems: ask for assistance• If the patient cannot tolerate IO films-
No intraoral films must be exposed• Alternative: Panoramic X-Ray
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Pregnant Patients
• Lead apron with thyroid collar is required• Some clinicians double-lead abdomen area• Some offices require you to check with M.D.• Dental x-rays might not be permitted per M.D.
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Pediatric Patients
• Follow KCC prescribing guidelines • Explain procedure:
-Tubehead=camera-Lead apron=coat-Radiograph=picture
• Exposure factors must be reduced• Size 0=primary dentition;
Size 1=mixed dentition;Size 2= mainly for occlusal radiographs
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Pediatrics: Helpful Hints
• Show and tell
• Demonstrate behavior
• Request assistance if needed from a parent
• Postpone examination if child is too scared
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Edentulous Patients
• Why radiographs are necessary?-To detect presence of root tips, impacted teeth,
and lesions;
-To identify objects embedded in bone;
-To observe the quantity and quality of bone that is present
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Panoramic Exam of Edentulous Patient
• Panoramic x-ray is the most common way• If PAN reveals something, then PA must be
taken
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Periapical Examination of Edentulous Patient
• If PAN is not available, then 14 Pas• PAs must be exposed in all teeth-bearing areas• PA=size 2 film (+ image)• If II tech. is used, put cotton rolls on 2 sides of
bite-block• The film should be positioned so that 1/3 of it
extends beyond edentulous ridge• Could also use bisecting technique
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Occlusal and Periapical Examination
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Patients with Tori
• When taking BWs,Place the film b/w tori & tongue• With large tori, BW holder is recommended• When taking PAs using II technique,For max. tori, place film on the far side of toriFor mand. tori, place film b/w tori and tongue
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Patients with Missing Teeth & Shallow Palate
Missing teeth:• Use cotton rolls to “replace” missing tooth• Helps to position the film parallel to long axis
Shallow palate:• If the lack of parallelism is >20, then• Use 2 cotton rolls one placed on each side of bite-
block• Vertical angulation can be increased by 5-15
degrees
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Ankyloglossia
• Mobility of tongue is very limited• The film is placed on the tongue for ant. films
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EndoRay
• Aids in positioning the film during RCT• Fits around rubber dam clamp • Allows space for RC instruments & filling mat. • Use paralleling technique to avoid distortion
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References
1. Haring JI, Jansen L. Dental Radiography Principles and Techniques. 2nd ed. Philadelphia: W. B. Saunders Company; 2000.
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