A METHOD FOR INVIVO QUANTITATIVE OCCLUSAL STRAIN AND STRESS-ANALYSIS
A METHOD FOR INVIVO QUANTITATIVE OCCLUSAL STRAIN AND STRESS-ANALYSIS
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DOI：
10.1016/0021-9290(84)90125-8
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发表时间：
1984-01-01
影响因子：
2.4
通讯作者：
ZANDMAN, F
中科院分区：
文献类型：
--
作者：
ARCAN, M;ZANDMAN, F
提出了一种通过测量咬合过程中存储在薄片中的应变和应力来评估体内牙齿咬合关系的方法。该方法基于某些聚合物记忆机械双折射（光塑现象）的特性；它提供并记录与咬合期间接触顺序相关的静态和运动模式。该序列根据记忆纸上的印象确定接触的强度级别。该方法包括使用光学仪器观察和测量出现在特殊记忆片上的双折射图案，患者根据具体指示将其遮挡在该特殊记忆片上。可以考虑两种方式：应变分析和应变分析方法。应变分析方法的目标主要是临床性的：通过逐步改善应变均匀性来检测和消除早熟和干扰，帮助实现静态和运动咬合模式的协调。其他临床用途包括：将咬合应变模式与创伤性咬合、磨牙症或其他功能障碍联系起来；诊断带有可摘全口或局部义齿的受试者的支持组织疼痛功能障碍综合征；应力分析方法的目标是临床和理论，为理解颞下颌力学关系提供帮助，以证实支撑种植体与牙桥等天然牙相结合的比较效果。
A method to evaluate in vivo dental occlusal relationships by measuring strains and stresses, memorized in a thin wafer during occlusion, is presented. The method is based on the property of some polymers to memorize mechanical birefringence (the photoplastic phenomenon); it provides and records static and kinematic patterns related to the sequence of contacts during occlusion. This sequence determines the intensity levels of contacts according to impressions on the memorizing sheet. The method consists of observing and measuring, with an optical instrument, birefringence patterns appearing on a special memory sheet upon which a patient has occluded according to specific instructions. Two ways may be considered: the strain analysis and the strain analysis approach. The goal of the strain analysis approach is mostly clinical: to help attain harmonization of the static and kinematic occlusal patterns by detecting and eliminating prematurities and interferences through a step-by-step improvement of the strain uniformity. Other clinical uses include: relating occlusal strain patterns to traumatic occlusion, bruxism or other functional disturbances; diagnosing pain-dysfunction syndrome of supporting tissues in subjects with removable complete or partial dentures; substantiating the comparative effect of supporting implants in combination with natural teeth in bridges, etc., the goal of the stress analysis approach is both clinical and theoretical, providing help in understanding the temporo-mandibular mechanical relationship.