顎矯正治療前後の咬合機能に関する基礎的検討

正颌治疗前后咬合功能的基础研究

• 批准号: 09771734
• 负责人: 佐藤 徹
• 金额: $ 1.15万
• 依托单位: Aichi Gakuin University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Encouragement of Young Scientists (A)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-09771734/
• 关键词: 顎矯正手術; 顎変形症; 顎運動; モデルサージェリー

1. 目的近年,機能並びに形態の改善を目的として,唇顎口蓋裂を含む顎変形症患者に対する顎矯正手術が積極的に行われるようになり,手術前後の定量的な評価も検討されてきている。この評価に際して,手術前後の咬合接触状態,咬合力,下顎運動などを把握することは,適切な治療方針をたて,さらには治療効果を判定する上で重要なことである。そこで今回,顎変形症の患者について術後の下顎位がより安定性する適切な咬合の与え方を確立することを目的として,手術前後の咬合状態,下顎運動ついて比較検討した。2. 被験者および方法被験者は平成9年から平成10年に本学補綴科に顎矯正手術を前提に来科した,顎変形症患者(男性5名,女性11名,平均年齢22.9歳)16名である.測定方法は,まずモデルサージェリー時の歯の変位量を下顎の移動量として測定し,また,咬合状態はOCCLUZER FPD-703(シモレックス社製)を用い,下顎運動は6自由度顎運動測定装置CONDYLOCOMP LR3(STRING社製)を用いて測定した。これらは,手術前,顎間固定解除後1,3,5,7週間後の5回測定した.3. 結果1) 咬合状態接触点数は,顎間固定を解除後1週以内では術前と比較していずれも減少傾向を示し,その後5週までほぼ回復し,7週では術前の約2倍に増加した.接触面積は,顎間固定を解除後1週以内では術前と比較していずれも減少傾向が見られたが,その後7週までに術前の約1/2まで回復した.咬合力は,顎間固定を解除後1週以内では術前と比較していずれも低下が見られ,その後7週までにほぼ術前レベルまで回復した.2) 顎運動顎間固定解除後1週以内での運動範囲は,術前と比較していずれも減少傾向を示したが,5週までにほぼ術前の範囲まで回復した.

1. Purpose In recent years, the function and morphology have been improved, and the patients with cleft lip and palate or palate have been treated with palatal deformity syndrome. Corrective surgery is an active procedure and a quantitative assessment before and after surgery.この综合価に久して, bite contact status before and after surgery, bite force, mandibular movement などを综合することは, appropriate treatment guideline をたて, さらには treatment effect を is important to determine the するでなことである. This time, the patients with palatal deformity have improved the mandibular position after surgery, the stability of the jaw, the appropriate fit, and the occlusion. The method is to establish the purpose of surgery, the occlusion status before and after surgery, and the comparison of mandibular movement. 2. The method of the patient was the patient. Heisei 9, Heisei 10, Department of Orthodontics, Department of Jaw Correction, Prerequisites, Department of Jaw Surgery, patients with palatal deformity (5 males, 11 females, average age) 22.9 years old) 16 people. Measuring method: The amount of movement of the mandible, the amount of movement of the mandible, the measurement of the occlusal state, OCCLUZER FPD-703 (manufactured by Semantec Co., Ltd.) is a mandibular movement measuring device with 6 degrees of freedom, CONDYLOCOMP. LR3 (manufactured by STRING Co., Ltd.) is used for measurement.これらは, before surgery, 1, 3, 5, and 7 weeks after removal of interpalatal fixation, 5 times of measurement were performed. 3. Result 1) The number of contact points in the occlusal state is within 1 week after the release of the interpalatal fixation. The comparison between the pre-operative and occlusal contact points shows the tendency to reduce, and the comparison is done within 5 weeks after the operation.でほぼResponse, 7 weeks before surgery, approximately 2 times the increase in contact area, within 1 week after release of interpalatal fixation, comparison before surgery The tendency to reduce the risk is reduced, and the recovery time is about 1/2 after 7 weeks before surgery. The bite force is not fixed, and the fixation between the jaws is not solved. Within 1 week after the operation, the comparison is the same as before the operation, and the comparison is the same as before the operation. 2) Jaw movement within 1 week after interpalatal fixation is released, the range of movement is reduced, and the comparison before surgery is to reduce the tendency, and the range of movement before surgery is restored after 5 weeks.