公开(公告)号：US06522407B2

公开(公告)日：2003-02-18

申请号：US10100824

申请日：2002-03-18

申请人： Matthew J. Everett ,  Billy W. Colston, Jr. ,  Ujwal S. Sathyam ,  Luiz B. Da Silva ,  Daniel Fried

发明人： Matthew J. Everett ,  Billy W. Colston, Jr. ,  Ujwal S. Sathyam ,  Luiz B. Da Silva ,  Daniel Fried

IPC分类号： G01J400

CPC分类号： A61B5/0088 ,  A61B5/0066 ,  A61B5/0073 ,  G01B9/02091 ,  G01B2290/70 ,  G01N21/4795

摘要： A polarization sensitive optical imaging system is used to detect changes in polarization in dental tissues to aid the diagnosis of dental disease such as caries. The degree of depolarization is measured by illuminating the dental tissue with polarized light and measuring the polarization state of the backscattered light. The polarization state of this reflected light is analyzed using optical polarimetric imaging techniques. A hand-held fiber optic dental probe is used in vivo to direct the incident beam to the dental tissue and collect the reflected light. To provide depth-resolved characterization of the dental tissue, the polarization diagnostics may be incorporated into optical coherence domain reflectometry and optical coherence tomography (OCDR/OCT) systems, which enables identification of subsurface depolarization sites associated with demineralization of enamel or bone.

摘要翻译： 偏振敏感光学成像系统用于检测牙组织中极化的变化，以帮助牙科疾病如龋齿的诊断。 通过用偏振光照射牙组织并测量背向散射光的偏振状态来测量去极化度。 使用光学偏振成像技术分析该反射光的偏振状态。 体内使用手持光纤牙科探针将入射光束引导到牙齿组织并收集反射光。 为了提供牙科组织的深度分辨表征，偏振诊断可以被并入到光学相干畴反射测量和光学相干断层扫描（OCDR / OCT）系统中，其能够识别与釉质或骨的脱矿质相关的地下去极化位点。

公开(公告)号：US06179611B2

公开(公告)日：2001-01-30

申请号：US09315000

申请日：1999-05-19

申请人： Matthew J. Everett ,  Billy W. Colston, Jr. ,  Ujwal S. Sathyam ,  Luiz B. Da Silva

发明人： Matthew J. Everett ,  Billy W. Colston, Jr. ,  Ujwal S. Sathyam ,  Luiz B. Da Silva

IPC分类号： A61C100

CPC分类号： A61B5/0088 ,  A61B5/0066 ,  G01B9/02027 ,  G01B9/0205 ,  G01B9/02091 ,  G01N21/4795

摘要： A hand-held, fiber optic based dental device with optical coherence domain reflectometry (OCDR) sensing capabilities provides a profile of optical scattering as a function of depth in the tissue at the point where the tip of the dental explorer touches the tissue. This system provides information on the internal structure of the dental tissue, which is then used to detect caries and periodontal disease. A series of profiles of optical scattering or tissue microstructure are generated by moving the explorer across the tooth or other tissue. The profiles are combined to form a cross-sectional, or optical coherence tomography (OCT), image.

摘要翻译： 具有光学相干畴反射测量（OCDR）感测能力的手持式基于光纤的牙齿设备提供了在牙科探险者的尖端接触组织的点处的组织中的深度的函数的光学散射的轮廓。 该系统提供关于牙科组织的内部结构的信息，然后用于检测龋齿和牙周病。 通过移动探查器穿过牙齿或其他组织，产生一系列光学散射或组织微结构。 轮廓组合形成横截面或光学相干断层扫描（OCT）图像。