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PubMed · 8360605

Pulp obliteration: a histological study.

A Piattelli·P Trisi
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Abstract

Pulp obliteration is a very rare occurrence that is most frequently caused by trauma. A 58-yr-old female patient had a generalized pulp obliteration that involved all maxillary and mandibular teeth. One tooth was extracted due to an extensive carious lesion and it was processed by a cutting-grinding technique. It was possible to observe the complete obliteration of the pulp chamber, which was filled in part by reparative dentin and in part by a calcified tissue with a concentric layers structure with no tubular pattern. The root canals were almost completely obliterated by an amorphous calcified material.

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Dental Pulp CalcificationDentin, SecondaryFemaleHumansMiddle AgedCase ReportsJournal ArticleResearch Support, Non-U.S. Gov't

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A Piattelli, P Trisi. 1993. Pulp obliteration: a histological study.. https://doi.org/10.1016/s0099-2399(06)81303-8

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Calcific metamorphosis (CM) is seen commonly in the dental pulp after traumatic tooth injuries and is recognized clinically as early as 3 months after injury. Calcific metamorphosis is characterized by deposition of hard tissue within the root canal space and yellow discoloration of the clinical crown. Opinion differs among practitioners as to whether to treat these cases upon early detection of CM or to observe them until symptoms or radiographic signs of pulpal necrosis are detected. In this review, the clinical, radiographic, and histopathologic appearance of CM is described; a review of the literature is presented to address these issues in an attempt to establish a sound rationale for treatment. Approximately 3.8% to 24% of traumatized teeth develop varying degrees of CM. Studies indicate that of these, approximately 1% to 16% will develop pulpal necrosis. Most of the literature does not support endodontic intervention unless periradicular pathosis is detected or the involved tooth becomes symptomatic. It may be advisable to manage cases demonstrating CM through observation and periodic examination.

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