Influence of superstracture materials for resonance frequency analysis

超结构材料对共振频率分析的影响

• 批准号: 11671956
• 负责人: HAGIWARA Yoshiyuki
• 金额: $ 2.24万
• 依托单位: Nihon-University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11671956/
• 关键词: Resonance frequency analysis; FFT Analyzer; Fast Fourier Transform; Vibration time; Frequency power spectrum; Implant; Abutment; Superstructure; 振動時間; Osseointegration; 上部構造物; 周波数分析

Achievement and maintenance of implant stability are prerequisites for long- term positive outcomes for osseointegrated implants. Thus, implant stability is the key to clinical success. Currently available clinical methods to determine implant stability and osseointegration are relatively crude and may entail percussing a fixture and abutment with Periotest. Radiographs are of value, but a standardised technique is necessary to ensure repeatability. This investigation was designed to study the application of a test method using resonance requency analysis to make quantitative measurements of the stability and shock transmission to the implant body influenced abutment type, torque force and different materials with superstructure.A threaded type implant (3i ; 3.75 mm diameter, 13. 0 mm length) was mounted in die stone. Conical and UCLA abutments were connected to implant with 5, 10, 20 and 32 Ncm fastening torque force and gold crowns were also affixed. The vibration pattern, vibration … More time and frequency power spectrum were measured by an accelerated pick up sensor which was attached to the crown and Fast Fourier Transform Analyzer. Conical and UCLA abutments obtained same tendency for higher tight force demonstrated short vibration time and high peak frequency area. ANOVA shows significant effects of abutment fastening torque force, types of abutment shape and superstructure engagement (segment and non-segment) for the resonance frequency. Influence of superstructure materials for resonance frequency analysis demonstrated no significant different between PFM, Estenia and cold cure resin crowns on the conical abutment, for vibration time and frequency peak spectrum. But in case of UCLA abutment, superstructure materials for resonance frequency analysis was significantly difference between in PFM with cold cure resin and Estenia with cold cure resin for vibration time and frequency peak spectrum. In concluded the clinical point of view, material selection for the UCLA abutment should be considered in tight bite, parafunction and group functioned occlusion cases. Less

实现和维持种植体稳定性是骨整合种植体取得长期积极成果的先决条件。因此，种植体稳定性是临床成功的关键。目前用于确定种植体稳定性和骨整合的临床方法相对粗糙，可能需要使用 Periotest 敲击固定装置和基台。射线照片很有价值，但需要标准化技术来确保可重复性。本研究旨在研究使用共振频率分析的测试方法的应用，以定量测量影响基台类型、扭矩力和上部结构不同材料的种植体稳定性和冲击传递。螺纹型种植体（3i；直径 3.75 毫米，长度 13. 0 毫米）安装在模具石中。锥形基台和 UCLA 基台以 5、10、20 和 32 Ncm 的紧固扭矩力连接至种植体，并固定金牙冠。振动模式、振动时间和频率功率谱通过连接到表冠和快速傅里叶变换分析仪的加速拾取传感器进行测量。锥形基台和 UCLA 基台具有相同的较高紧力趋势，表现出较短的振动时间和较高的峰值频率区域。方差分析显示了基台紧固扭矩力、基台形状类型和上部结构接合（节段和非节段）对共振频率的显着影响。上部结构材料对共振频率分析的影响表明，锥形基台上的 PFM、Estenia 和冷固化树脂牙冠之间的振动时间和频率峰值频谱没有显着差异。但对于 UCLA 基台，用于共振频率分析的上部结构材料在冷固化树脂 PFM 和冷固化树脂 Estenia 中的振动时间和频率峰值谱之间存在显着差异。总结临床观点，在紧咬合、功能障碍和群功能咬合病例中应考虑 UCLA 基台的材料选择。较少的