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首页> 外文会议>Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US) >ULTRASONIC PERIODONTAL PROBE
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ULTRASONIC PERIODONTAL PROBE

机译：超声波牙周探头

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We have developed an ultrasonic technique for imaging periodontal structures which allows accurate measurements of disease activity without the need for ionizing radiography or manual periodontal probing. It promises reduced variability and improved ease of use, in comparison to conventional manual periodontal probing, and is the first step to establish the ultrasound periodontal probe as a clinically-valuable tool for patient assessment and the first non-invasive measure of periodontal disease activity. We have gathered data from cadaver samples using a prototype intra-oral ultrasound instrument, and have compared the ultrasound scans against conventional manual probing subsequently performed on the annotated cadaver samples. Periodontal disease is one of the most pervasive dental diseases in older adults showing increasing prevalence with age. It involves the loss of connective tissue attachment with subsequent destruction of alveolar (tooth-supporting) bone, leading to loss of teeth. Bone loss due to chronic periodontal disease usually is preceded by loss of connective tissue attachment, indicated by an apical progression of the crest of the periodontal ligament. At present, there are no reliable clinical indicators of periodontal disease activity and the best available diagnostic aid, conventional periodontal probing, is only a retrospective analysis of attachment already lost. Subtraction radiography may be of value in detecting small changes in alveolar bone mineralization but does not evaluate periodontal ligament attachment. In addition, changes in bone have been shown to lag behind connective tissue loss by several months. Serial radiography also subjects the patient to increasing amounts of ionizing radiation. A method for detecting small increments of periodontal ligament breakdown would permit earlier diagnosis and intervention with less costly and time consuming therapies. Moreover, there is evidence that "disease active" sites respond positively to therapy but that quiescent or stable sites do not change or lose attachment so a more sensitive diagnostic probe would permit site-specific identification of attachment loss. This could direct treatment toward areas that are actively breaking down, and eliminate over treatment for sites that are stable. It will provide the clinician with a non-invasive method for measuring periodontal status without the often-reported discomfort of conventional periodontal probing.
机译：我们已经开发了一种用于牙周结构成像的超声波技术，该技术可以准确测量疾病活动，而无需进行电离射线照相或手动牙周探测。与传统的手动牙周探测相比，它有望减少变异性并提高易用性，并且是确立超声牙周探针作为可用于患者评估的临床上有价值的工具以及第一个非侵入性牙周疾病活动性测量方法的第一步。我们使用原型口腔内超声仪器从尸体样本中收集了数据，并将超声扫描与随后对带注释的尸体样本进行的常规手动探测进行了比较。牙周疾病是老年人中最普遍的牙齿疾病之一，显示其患病率随着年龄的增长而增加。它涉及结缔组织附着的丧失以及随后牙槽骨（牙齿支撑）的破坏，从而导致牙齿脱落。慢性牙周疾病引起的骨丢失通常先于结缔组织附着的丧失，其表现为牙周膜the尖的根尖进展。目前，尚无可靠的牙周疾病活动的临床指标，而最佳的诊断辅助手段，即常规的牙周探测，仅仅是对已经丧失的附件的回顾性分析。减影X线照相术可能对检测牙槽骨矿化的微小变化有价值，但不能评估牙周膜的附着。此外，骨骼的变化已显示出结缔组织损失要滞后几个月。连续放射线照相术还使患者经受增加量的电离辐射。一种用于检测牙周膜韧带细微增加的方法将可以更早地进行诊断和干预，并降低成本和耗时。此外，有证据表明“疾病活跃”位点对治疗有积极反应，但静态或稳定位点不会改变或失去附着，因此，使用更灵敏的诊断探针可以对附着丧失进行位点特异性鉴定。这可以将治疗引向主动发生故障的区域，并消除对稳定部位的过度治疗。这将为临床医生提供一种非侵入性的方法来测量牙周状况，而不会经常报告传统牙周探测的不适感。

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