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Cleft患者におけるLe Fort I骨切り術。上顎の前進と咬合
Le Fort I Osteotomy in Cleft Patients: Maxillary Advancement and Articulation.
PMID: 34387267
抄録
背景:
上顎前方移動は口唇裂患者の発声に影響を与える可能性がある。
BACKGROUND: Maxillary advancement may affect speech in cleft patients.
目的:
上顎前方移動量と術前の骨格・歯槽骨関係がフィンランド語の歯槽子音/s/, /l/, /r/の調音障害と関連するかどうかを検討する。
AIMS: To examine whether the amount of maxillary advancement and preoperativecephalometric skeletal and dentoalveolar relationships are associated with articulation errors of the Finnish alveolar consonants /s/, /l/, and /r/ in cleft patients.
材料と方法:
Le Fort I または両顎骨骨切り術を受けた 57 名の非特異性裂孔患者をレトロスペクティブに評価した。術前・術後の側面セファロX線写真と標準化された発話ビデオ記録を分析した。統計解析には、Aspin-Welch不等分散t検定、Student t検定符号検定、クラス内相関、Kappa統計が使用された。
MATERIALS AND METHODS: Fifty-seven nonsyndromic cleft patients who underwent Le Fort I or bimaxillary osteotomies were evaluated retrospectively. Pre- and post-operative lateral cephalometric radiographs and standardized speech video recordings were analyzed. The Aspin-Welch unequal variance t test, Student t test sign test, intraclass correlation and Kappa statistics were used in the statistical analyses.
結果:
上顎骨(A点)の平均的な前進は、水平方向に4.65mm(範囲-2.80~11.30)、垂直方向に-3.82mm(範囲-14.20~3.90)であった。術後は全体的な調音(特に/s/、/l/の音)が有意に改善したが,上顎前方移動量は調音に影響を与えなかった.術前の/s/,/l/,/r/の平均誤差率は32%,33%,46%であり,術後はそれぞれ23%,19%,40%であった.術前の/s/の調音誤差は,上顎切歯の口蓋傾斜と関連していた.
RESULTS: The mean advancement of the maxilla (point A) was 4.65 mm horizontally (range -2.80 to 11.30) and -3.82 mm vertically (range -14.20 to 3.90). The overall articulation (especially the sounds /s/ and /l/) improved significantly postoperatively, but the amount of maxillary advancement did not affect the articulation. The preoperative mean percentages of /s/, /l/, and /r/ errors were 32%, 33%, 46% and the postoperative percentages 23%, 19%, 40%, respectively. Preoperative articulation errors of /s/ were related to palatal inclination of the upper incisors.
結論:
顎矯正手術は咬合不正を改善する可能性がある。上顎前方移動の量は改善と関係ない.
CONCLUSIONS: Orthognathic surgery may improve articulation errors. The amount of maxillary advancement is not related to the improvement.