Abstract
Internal resorption, a rare phenomenon, has been a quandary from the standpoints of both its diagnosis and treatment. It is usually asymptomatic and discovered by chance on routine radiographic examinations or by a classic clinical sign, “pink spot” in the crown. This paper emphasizes the etiology and pathophysiologic mechanisms involved in internal root resorption. Prognosis is good for smaller lesions; however, for those with extensive resorption associated with perforation the tooth structure is greatly weakened and the prognosis remains poor.
Highlights
Tooth resorption presents itself either as a physiological or a pathological process occurring internally or externally
According to the Glossary of the American Association of Endodontists, resorption is defined as a condition associated with either a physiologic or a pathologic process resulting in the loss of dentin, cementum, or bone [1]
Due to its insidious pathology, internal resorption can progress to a great extent before its detection
Summary
Tooth resorption presents itself either as a physiological or a pathological process occurring internally (pulpally derived) or externally (periodontally derived). According to the Glossary of the American Association of Endodontists, resorption is defined as a condition associated with either a physiologic or a pathologic process resulting in the loss of dentin, cementum, or bone [1]. External resorption begins from the external or cervical surface of the tooth and proceeds inwards and is associated with factors like periapical pathosis, pressure from orthodontic treatment, and rapidly growing tumors. Internal resorption (IR) is a rare, insidious, resorptive pathological process, beginning in the pulpal space and extending into the surrounding dentin. Due to its insidious pathology, internal resorption can progress to a great extent before its detection. Treatment is by arresting the cellular activity accounting for the resorptive process
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