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8/9/2019 Extraoral Radiographic Technique, An Alternative Approach
the floor of the mouth. She became agitated and upset when a
conventional periapical radiograph was attempted. A decision was
made to utilize the extraoral technique (Figs. 7, 8, and 9), and the
patient tolerated the procedure well as a result.
DISCUSSION
Extraoral radiography is an efficient technique for achieving
diagnostic films in a select population of patients. The technique is
a simple method that allows the clinician to capture an appropriate
image for patients who are unable to tolerate the placement of
intraoral films or sensors. The technique may be utilized with the
rubber dam in place, making it applicable for all phases of end-
odontic therapy.Patients tolerate the procedure well, preferring it to conventional
intraoral radiography. The most important advantage may be that
the technique permits appropriate endodontic films for patients
who previously could or would not tolerate intraoral films.
The possible disadvantage of an increase in radiation to the
patient is generally negated by the reduction in the number of
unacceptable films taken intraorally. A slight decrease in resolu-
tion may be noted; however, this does not affect the diagnostic
quality of the images.
This technique is not meant to replace conventional intraoral
radiography. It is a useful supplement to add to our clinical
practice.
Dr. Newman is a former second year resident and Dr. Friedman is theDirector of Endodontics, State University of New York at Stony Brook, StonyBrook, NY. Address requests for reprints to Scott Whitney, DDS, School ofDental Medicine, 140 Rockland Hall, State University of New York at StonyBrook, Stony Brook, NY 11794.
References
1. Glickman NG. Preparation for treatment. Principles of endodontic ra-diography. In: Cohen S, Burns RC, eds. Pathways of the pulp. 7th ed. St.Louis: CV Mosby, 1998:89–102.
2. Fisher D. Extraoral radiographic technique of third molars. Aust Dent J1974;19:306–7.
3. Poyton HG, Fireman SM Poyton HG, Fireman SM. The oblique lateralradiographic projection in dental practice. J Can Dent Assoc 1974;40:727–31.
FIG 8. Mandibular preoperative.
FIG 9. Mandibular postoperative.
FIG 7. Extraoral technique for pre- and postoperative radiographs of
tooth #19.
Vol. 29, No. 6, June 2003 Extraoral Radiographic Technique 421