PDF(Pubmed)
Abstract：
: A three-dimensional-printed individual titanium plate was applied for maxillary protraction to eliminate side effects and obtain the maximum skeletal effect. This study aimed to explore the stress distribution characteristics of sutures during maxillary protraction using individual titanium plates in various directions and locations.
: A protraction force of 500 g per side was applied at forward and downward angles between 0° and 60° with respect to the Frankfort horizontal plane, after which the titanium plate was moved 2 and 4 mm upward and downward, respectively. Changes in sutures with multiple protraction directions and various miniplate heights were quantified to analyze their impact on the maxillofacial bone.
: Protraction angle of 0-30° with respect to the Frankfort horizontal plane exhibited a tendency for counterclockwise rotation in the maxilla. At a 40° protraction angle, translational motion was observed in the maxilla, whereas protraction angles of 50-60° tended to induce clockwise rotation in the maxilla. Enhanced protraction efficiency at the lower edge of the pyriform aperture was associated with increased height of individual titanium plates.
: Various protraction directions are suitable for patients with different types of vertical bone surfaces. Furthermore, when the titanium plate was positioned lower, the protraction force exhibited an increase.
: A protraction force of 500 g per side was applied at forward and downward angles between 0° and 60° with respect to the Frankfort horizontal plane, after which the titanium plate was moved 2 and 4 mm upward and downward, respectively. Changes in sutures with multiple protraction directions and various miniplate heights were quantified to analyze their impact on the maxillofacial bone.
: Protraction angle of 0-30° with respect to the Frankfort horizontal plane exhibited a tendency for counterclockwise rotation in the maxilla. At a 40° protraction angle, translational motion was observed in the maxilla, whereas protraction angles of 50-60° tended to induce clockwise rotation in the maxilla. Enhanced protraction efficiency at the lower edge of the pyriform aperture was associated with increased height of individual titanium plates.
: Various protraction directions are suitable for patients with different types of vertical bone surfaces. Furthermore, when the titanium plate was positioned lower, the protraction force exhibited an increase.
摘要：
：将三维打印的单个钛板用于上颌前牵引，以消除副作用并获得最大的骨骼效果。本研究旨在探讨使用单个钛板在不同方向和位置的上颌牵拉过程中缝合线的应力分布特征。
：以相对于法兰克福水平面在0°至60°之间的向前和向下角度施加每侧500g的牵引力，之后，钛板向上和向下移动2和4毫米，分别。量化了具有多个牵伸方向和各种微型板高度的缝合线的变化，以分析其对颌面骨的影响。
：相对于Frankfort水平面的0-30°的伸出角显示出上颌骨逆时针旋转的趋势。在40°前移角下,在上颌骨观察到平移运动，而50-60°的前伸角度倾向于引起上颌骨顺时针旋转。在梨形孔的下边缘处提高的伸出效率与单个钛板的高度增加有关。
：各种牵伸方向适用于具有不同类型的垂直骨表面的患者。此外，当钛板位于较低位置时，牵引力表现出增加。
：以相对于法兰克福水平面在0°至60°之间的向前和向下角度施加每侧500g的牵引力，之后，钛板向上和向下移动2和4毫米，分别。量化了具有多个牵伸方向和各种微型板高度的缝合线的变化，以分析其对颌面骨的影响。
：相对于Frankfort水平面的0-30°的伸出角显示出上颌骨逆时针旋转的趋势。在40°前移角下,在上颌骨观察到平移运动，而50-60°的前伸角度倾向于引起上颌骨顺时针旋转。在梨形孔的下边缘处提高的伸出效率与单个钛板的高度增加有关。
：各种牵伸方向适用于具有不同类型的垂直骨表面的患者。此外，当钛板位于较低位置时，牵引力表现出增加。
