汎発性短根異常症患者管理の課題：症例報告

The challenge of managing patients with generalized short root anomaly: A case report.

抄録

汎発性短根症（SRA）を有する18歳女性の症例を提示し、この稀な疾患に関する臨床管理と課題について考察した。患者は、上顎左前歯部の無歯顎修復のために紹介された。SRAのため、患者は以前、異所性上顎犬歯の限定的な矯正治療を受けていた。上顎左犬歯は矯正牽引中に破折し、左側切歯はその部位に移動し、可動性が著しく予後不良であった。そのため抜歯し、インプラント支持のカンチレバー型メタルセラミック固定部分義歯で修復した。レントゲン検査では、他の歯列異常とともに汎発性SRAが認められた。患者の家族歴、身体的、臨床的、X線写真、生化学的、組織学的評価から、このユニークな歯列異常の組み合わせの病因を特定することはできなかった。審美性と機能の回復に成功し、短根の歯をモニターし維持するために、厳格なリコールシステムが実施された。全身性短根症例では、歯と歯周組織の劣化を予防する必要性が強調された。

The case of an 18-year-old woman with generalized short root anomaly (SRA) is presented, and the clinical management and challenges associated with this rare condition are discussed. The patient was referred for restoration of the edentulous maxillary left anterior region. Due to the SRA, the patient had previously received limited orthodontic treatment for the ectopic maxillary canines. The maxillary left canine failed during orthodontic traction, the left lateral incisor migrated in its region and had poor prognosis due to severe mobility. Therefore, it was extracted and the region was restored with an implant-supported cantilever metal-ceramic fixed partial denture. Radiographic examination revealed generalized SRA along with other dental anomalies. From the patient's family history, as well as from the physical, clinical, radiographic, biochemical, and histologic evaluations, we were unable to identify the etiology behind this unique combination of dental anomalies. Esthetics and function were successfully restored and a strict recall system was implemented in order to monitor and maintain the short-rooted teeth. The need to prevent tooth and periodontal tissue deterioration in patients with generalized short roots is emphasized.