Chewing efficiency and maximum bite force with different attachment systems of implant overdentures: a crossover study
Chewing efficiency and maximum bite force with different attachment systems of implant overdentures: a crossover study
复制标题
种植覆盖义齿不同附着系统的咀嚼效率和最大咬合力：交叉研究
DOI：
10.1111/clr.12861
复制
发表时间：
2017
影响因子：
4.3
通讯作者：
A. Khairallah
中科院分区：
文献类型：
--
作者：
M. Elsyad;A. Khairallah
目的
这项交叉研究旨在评估和比较下颌萎缩患者的咀嚼效率和最大咬合力 (MBF) 以及种植体覆盖义齿的弹性伸缩和杆附着系统。
材料和方法
十名下颌骨严重吸收和持续假牙问题的参与者接受了新的上颌和下颌传统假牙（对照，CD）。经过 3 个月的适应后，两个种植体被植入下颌的犬齿区域。在准随机方法中，覆盖义齿通过杆覆盖义齿 (BOD) 或弹性伸缩覆盖义齿 (TOD) 附着系统连接到种植体。使用口香糖（5、10、20、30和50次后）测量以未混合分数（UF）表示的咀嚼效率，并使用咬合力传感器测量MBF。使用以下每种假肢 3 个月后进行测量：CD、BOD 和 TOD。
结果
与 CD 相比，BOD 和 TOD 的咀嚼效率和 MBF 显着增加。随着咀嚼周期次数的增加，UF 降低。 TOD 的咀嚼效率和 MBF 显着高于 BOD。
结论
弹性伸缩附件与咀嚼效率的提高有关，MBF 与杆附件相比，用于将覆盖义齿保留在下颌萎缩患者的种植体上。
PURPOSE
This crossover study aimed to evaluate and compare chewing efficiency and maximum bite force (MBF) with resilient telescopic and bar attachment systems of implant overdentures in patients with atrophied mandibles.
MATERIAL AND METHODS
Ten participants with severely resorbed mandibles and persistent denture problems received new maxillary and mandibular conventional dentures (control, CD). After 3 months of adaptation, two implants were inserted in canine region of the mandible. In a quasi-random method, overdentures were connected to the implants with either bar overdentures (BOD) or resilient telescopic overdentures (TOD) attachment systems. Chewing efficiency in terms of unmixed fraction (UF) was measured using chewing gum (after 5, 10, 20, 30 and 50 strokes), and MBF was measured using a bite force transducer. Measurements were performed 3 months after using each of the following prostheses: CD, BOD and TOD.
RESULTS
Chewing efficiency and MBF increased significantly with BOD and TOD compared to CD. As the number of chewing cycles increased, the UF decreased. TOD recorded significant higher chewing efficiency and MBF than BOD.
CONCLUSION
Resilient telescopic attachments are associated with increased chewing efficiency and MBF compared bar attachments when used to retain overdentures to the implants in patients with atrophied mandibles.