NL Journal of Dentistry and Oral Sciences
(ISSN: 3049-1053)

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Blunt Images of Smooth Curvatures on Intraoral Periapical Radiography

Author(s) : Tarun Kumar*, Neha Arora, Dilbag Singh.
DOI : 10.71168/NDO.03.01.143

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Abstract

Intraoral periapical (IOPA) radiography is an essential diagnostic tool in dental practice, yet its two-dimensional nature can occasionally produce misleading interpretations. This communication reports a case in which a mandibular third molar appeared to exhibit a blunted distal root apex on an IOPA image. Careful evaluation of the lamina dura and periodontal ligament (PDL) space indicated that the apparent bluntness was not a true anatomical alteration but an artifact caused by a pronounced buccal curvature of the apical one-third of the root, superimposed over the middle third. Recognition of such projection artifacts is crucial for accurate diagnosis and treatment planning. Continuous lamina dura and PDL outlines can help distinguish real structural changes from optical illusions caused by root curvature. Understanding the interplay between root anatomy and radiographic projection enhances interpretation accuracy and prevents misdiagnosis during endodontic and surgical procedures. Keywords: Intraoral periapical radiograph, Mandibular third molar, Root curvature, Radiographic interpreta tion, Projection artifact.

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