Comparative study of maxillary complete dentures constructed of metal base and metal structure framework.
Comparative study of maxillary complete dentures constructed of metal base and metal structure framework.
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金属基托与金属结构框架制作上颌全口义齿的对比研究
DOI：
10.1046/j.1365-2842.2001.00644.x
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发表时间：
2001
影响因子：
2.9
通讯作者：
T. Hosoi
中科院分区：
文献类型：
--
作者：
C. Ohkubo;K. Kurtz;Y. Suzuki;S. Hanatani;M. Abe;T. Hosoi
使用三维铸造金属框架设计的活动义齿（以下简称“结构设计”义齿）可以延长义齿的使用寿命，因为它不易破损且易于调整。本临床研究的目的是比较两种类型的上颌活动义齿：常规义齿和结构设计义齿。1例无牙颌患者和5例部分有牙颌患者分别采用相同印模和相同咬合关系制作2个上颌义齿。在义齿交付后约20天进行咀嚼分析（咀嚼期为开放、闭合、咬合）；计算变异系数和平均变异系数。然后用加速度计测量敲击过程中假牙的振动。患者还接受了关于舒适度、咀嚼便利性、言语、稳定性、美观性和对常规使用的偏好的访谈。在咀嚼运动和义齿振动方面，常规义齿与结构设计义齿之间无显著差异（P>0.1）。在根据每个标准评估义齿时，无法确定一个义齿比另一个义齿有显著的优势。然而，所有患者主观上都倾向于使用结构设计的义齿。根据这些发现，与传统义齿相比，结构设计的义齿似乎没有任何特殊的生理问题。
A removable denture designed using a three-dimensional cast metal framework (hereafter referred to as the 'structurally designed' denture) could extend denture longevity because it is unbreakable and easy to adjust. The aim of the present clinical study was to compare two types of maxillary removable dentures: conventional dentures and structurally designed denture. One edentulous and five partially dentate patients were fitted with two maxillary dentures made from the same impression and same occlusal relationship. About 20 days after delivery of the denture, masticatory analysis was conducted chewing phase (open, closed, and occluded); coefficients of variation and average variation were calculated. Denture vibration during tapping was then measured using an accelerometer. The patients were also interviewed about comfort, ease of chewing, speech, stability, aesthetics and preference for regular use. For both masticatory movements and denture vibration, there were no significant differences (P>0.1) between the conventional denture and the structural design denture. In evaluating the dentures according to each criteria, the significant superiority of one denture over the other could not be determined. However, all patients subjectively preferred the structurally designed dentures for regular use. According to these findings, structurally designed dentures do not appear to have any particular physiological problems as compared with the conventional dentures.