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コーンビームCT(CBCT)による歯根破折の評価:疫学的研究
The Evaluation of Root Fracture with Cone Beam Computed Tomography (CBCT): An Epidemiological Study.
PMID: 29670714
抄録
背景:
本研究の目的は、歯根破折が疑われる8~15歳の患者および歯根破折が発生し、歯科外傷を受けた50名のコーンビームCT(CBCT)画像を評価することである。また、歯冠破折が歯根破折治癒に及ぼす影響についても検討した。
BACKGROUND: The aim of this study was evaluation of the cone-beam computed tomography (CBCT) image of 50 patients at the ages of 8-15 suspecting root fracture and root fracture occurred, exposed to dental traumatic. In additionally, this study was showed effect of crown fracture on root fracture healing.
材料と方法:
病歴とCBCT画像から得られた情報をカイ二乗検定統計法を用いて独立変数の平均と分布を評価した。
MATERIAL AND METHODS: All of the individuals included in the study were obtained images with the cone-beam computed tomography range of 0,3 voxel and 8.9 seconds.(i-CAT®, Model 17-19, Imaging SciencesInternational, Hatfield, Pa USA).The information obtained from the history and CBCT images of patients were evaluated using chi-square test statistical method the mean and the distribution of the independent variables.
結果:
50名の小児で外傷を受けたことがあり、97歯で歯根破折が検出された。97歯中、水平歯根破折が63.9%、斜め歯根破折が31.9%、水平・斜め両方が1.03%、部分破折が2.06%、水平・垂直両方が1.03%であった。最も罹患率の高い歯は、上顎中切歯(左41.23%、右37.11%)、上顎左側切歯(9.27%)、上顎右側切歯(11.34%)、下顎中切歯(1.03%)であった。
RESULTS: 50 children, have been exposed to trauma, was detected root fracture injury in 97 teeth. Horizontal root fracture 63.9% of the 97 tooth, the oblique in 31.9%, both the horizontal and oblique in 1.03%, partial fracture in 2.06% ,and both horizontally and vertical in 1.03% was observed.The most affected teeth, respectively of, are the maxillary central incisor (41.23% left, right, 37.11%), maxillary left lateral incisor (9.27%), maxillary right lateral incisor (11.34%), and mandibular central incisor (1.03%).
結論:
歯冠破折は歯根破折の自然治癒に悪影響を及ぼす。歯根破折の診断には、従来のX線撮影に代わるものとしてCBCTが選択される。特に、CBCTの断面画像は非常に有用であり、臨床医にとって診断と治療の結果を見るのに便利である。歯根破折, CBCT, 疫学.
CONCLUSIONS: Crown fractures have negative effects on spontaneous healing of root fractures. CBCT are used selected as an alternative to with conventional radiography for diagnosis of root fractures. In particular, ıt's cross-sectional image is quite useful and has been provided more conveniences seeing the results of diagnosis and treatment for clinician. Root fracture, CBCT, Epidemiolog.