Calculus-like deposit at apex of tooth with refractory apical periodontitis |
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Authors: | W-M Harn Y-H M Chen K Yuan C-H Chung P-H Huang |
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Institution: | Endodontic Section and Periodontal Section, Dental Department, National Cheno Kung University Hospital;Dental Department, Chi Mei Foundation Hospital, Yung Kang City, Tainan, Taiwan, Republic of China |
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Abstract: | Abstract— It is generally accepted that bacteria in or outside the root canal are the reason for apical periodontitis and endodontic failures. This case report presents a 60-year-old woman with a periapical lesion and a fistulous tract which did not respond to conventional root canal treatment. During periapical surgery, granulomatous tissue was removed and a calculus-like deposit was observed on the root surface. A radicular cyst was diagnosed. Nine months after this calculus-like deposit had been removed and the cyst enucleated, complete recovery of the bone had occurred. It is suggested that the presence of the calculus-like deposit at the apex of the tooth or its effects may in part have delayed the healing of the periapical inflammation in spite of apparently adequate endodontic treatment. |
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Keywords: | chronic apical periodontitis refractory periapical lesion |
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