| REVIEW ARTICLE |
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| Year : 2014 | Volume
: 4
| Issue : 3 | Page : 7-9 |
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Extra Oral Periapical Radiography: A Review
Rachna Kaul1, PS Shilpa2
1 Reader, Department of Oral Medicine & Radiology, Vydehi Insitute of Dental Sciences, Bangalore, Karnataka, India
2 Senior Lecturer, Department of Oral Medicine & Radiology, Vydehi Insitute of Dental Sciences, Bangalore, Karnataka, India
Correspondence Address:
Rachna Kaul
Reader, Department of Oral Medicine & Radiology, Vydehi Insitute of Dental Sciences, Bangalore, Karnataka
India
 Source of Support: None, Conflict of Interest: None  | Check |
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Background: Intra oral periapical radiographs remain the backbone of diagnostic assessment of dento-facial pathologies. However, in some clinical situation like in developmentally disabled individuals, those with an exaggerated gag reflex, pediatric dental patients and anxious dental patients, it may be very difficult to obtain an intra-oral periapical radiograph of diagnostic quality. In such situations, extra oral periapical radiographs are very useful. They are obtained by placing a sensor outside the oral cavity and then making the radiographic exposure using a digital X ray machine for intra oral radiographs. The radiation dose in this technique is much lesser as compared to panoramic radiographs. This article reviews the technique, advantages, disadvantages and indications of extra oral periapical radiographs. |
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