中华口腔医学杂志
中華口腔醫學雜誌
중화구강의학잡지
Chinese Journal of Stomatology
2011年
z1期
69-74
,共6页
吴夏怡%陈伟生%胡雅%何恩宝%林雪峰
吳夏怡%陳偉生%鬍雅%何恩寶%林雪峰
오하이%진위생%호아%하은보%림설봉
咀嚼%头影测量学%骨性错(牙合)
咀嚼%頭影測量學%骨性錯(牙閤)
저작%두영측량학%골성착(아합)
Mastication%Cephalometrics%Malocclusion
目的 分析骨性错(牙合)对(牙合)平面倾斜度的影响,探讨骨性错(牙合)者矢状面(牙合)平面倾斜度与咀嚼运动轨迹的相关性.方法 对33名青年志愿者,正常(牙合)10名、骨性Ⅱ类错(牙合)6名、骨性Ⅲ类错(牙合)17名进行头影测量及下颌切点咀嚼轨迹分析.结果 正常(牙合)、骨性Ⅱ类、骨性Ⅲ类的(牙合)平面倾斜度分别为(-1.78 ±5.16)°、(0.13±2.31)°、(-5.28±4.31)°,组间差异有统计学意义(P＜0.05)；咀嚼轨迹最大位移组间差异及其与(牙合)平面倾斜度的相关性均无统计学意义；(牙合)平面-开(闭)口轨迹角正常(牙合)大于骨性Ⅲ类、大于骨性Ⅱ类,组间差异有统计学意义；(牙合)平面倾斜度与(牙合)平面-开(闭)口轨迹角的相关性,正常(牙合)组及骨性Ⅱ类组无统计学意义,骨性Ⅲ类组呈正相关.结论 骨性错(牙合)影响(牙合)平面倾斜度；骨性错(牙合)对咀嚼轨迹范围影响不显著；骨性错(牙合)(牙合)平面倾斜度对咀嚼轨迹方向有影响.
目的 分析骨性錯(牙閤)對(牙閤)平麵傾斜度的影響,探討骨性錯(牙閤)者矢狀麵(牙閤)平麵傾斜度與咀嚼運動軌跡的相關性.方法 對33名青年誌願者,正常(牙閤)10名、骨性Ⅱ類錯(牙閤)6名、骨性Ⅲ類錯(牙閤)17名進行頭影測量及下頜切點咀嚼軌跡分析.結果 正常(牙閤)、骨性Ⅱ類、骨性Ⅲ類的(牙閤)平麵傾斜度分彆為(-1.78 ±5.16)°、(0.13±2.31)°、(-5.28±4.31)°,組間差異有統計學意義(P＜0.05)；咀嚼軌跡最大位移組間差異及其與(牙閤)平麵傾斜度的相關性均無統計學意義；(牙閤)平麵-開(閉)口軌跡角正常(牙閤)大于骨性Ⅲ類、大于骨性Ⅱ類,組間差異有統計學意義；(牙閤)平麵傾斜度與(牙閤)平麵-開(閉)口軌跡角的相關性,正常(牙閤)組及骨性Ⅱ類組無統計學意義,骨性Ⅲ類組呈正相關.結論 骨性錯(牙閤)影響(牙閤)平麵傾斜度；骨性錯(牙閤)對咀嚼軌跡範圍影響不顯著；骨性錯(牙閤)(牙閤)平麵傾斜度對咀嚼軌跡方嚮有影響.
목적 분석골성착(아합)대(아합)평면경사도적영향,탐토골성착(아합)자시상면(아합)평면경사도여저작운동궤적적상관성.방법 대33명청년지원자,정상(아합)10명、골성Ⅱ류착(아합)6명、골성Ⅲ류착(아합)17명진행두영측량급하합절점저작궤적분석.결과 정상(아합)、골성Ⅱ류、골성Ⅲ류적(아합)평면경사도분별위(-1.78 ±5.16)°、(0.13±2.31)°、(-5.28±4.31)°,조간차이유통계학의의(P＜0.05)；저작궤적최대위이조간차이급기여(아합)평면경사도적상관성균무통계학의의；(아합)평면-개(폐)구궤적각정상(아합)대우골성Ⅲ류、대우골성Ⅱ류,조간차이유통계학의의；(아합)평면경사도여(아합)평면-개(폐)구궤적각적상관성,정상(아합)조급골성Ⅱ류조무통계학의의,골성Ⅲ류조정정상관.결론 골성착(아합)영향(아합)평면경사도；골성착(아합)대저작궤적범위영향불현저；골성착(아합)(아합)평면경사도대저작궤적방향유영향.
Objective To evaluate the characteristics of and correlation between the inclination of occlusal plane (IOP) and masticatory path in young adults with skeletal malocclusion.Methods Thirtythree individuals were eligible for this study based on the inclusion criteria.Individuals were grouped by ANB angles.There were ten,six and seventeen cases categorized as group Ⅰ ( normal occlusion with skeletal Class Ⅰ ),Group Ⅱ ( skeletal Class Ⅱ ) and Group Ⅲ ( skeletal Class Ⅲ ),respectively.The following parameters of sagittal anatomical landmarks were studied by lateral cephalometric analysis:ANB,MP-FH,OP-CP (IOP),and OP-FH.Mandibular movement of the incisal point during unilateral-sided gum-chewing was recorded by the BioEGN mandibular kinesiography analyzer and both maximal distances and direction (OP-opening/closing angles ) in sagittal plane were analyzed.Correlation between IOP and maximal distances,direction of masticatory path were analyzed,respectively.Statistical analysis was performed with PASW 17.0 software.Results IOP varied among three groups:group Ⅰ ( - 1.78 ± 5.16) °,group Ⅱ( 0.13 ± 2.31 ) °,group Ⅲ ( - 5.28 ± 4.31 ) ° ( P ＜ 0.05 ).Maximal distances of masticatory path in Group Ⅰ,Ⅱ and Ⅲ were as follow:Vertical length:(20.30 ± 8.92),( 17.60 ± 3.29),and ( 18.25 ± 4.09),Anterior-Posterior width:(2.99 ±7.90),(9.60 ±5.80) and (4.67 ±4.64) mm,Lateral width:(8.79 ±2.22),(7.11 ± 2.03 ) and ( 8.47 ± 1.70 ) mm,respectively.The variation among groups was not ofstatistical significance (P ＞ 0.05 ).OP-opening/closing angles of masticatory path in each level were found increasing from group Ⅱ,group Ⅲ to group Ⅰ.There was significant difference between Group Ⅱ and Group Ⅰ in each level of OP-opening angle.OP-opening/closing angles were not correlated with IOP in group Ⅰ and group Ⅱ ( P ＞ 0.05 ).IOP and OP-opening/closing angles were shown to be positively correlated in group Ⅲ with statistical significance (P ＜ 0.05 ).Conclusions The discrepancy of craniofacial structure has an impact on IOP.Skeletal malocclusion and IOP have no significant influence on the maximal distances of masticatory paths.The direction of masticatory path is influenced by IOP in skeletal malocclusion.
