Andreas Mandelis;Stephen Abrams;Jin-Seok Jeon;Kiran Kulkarni;Anna Matvienko
发明人:
Andreas Mandelis,Stephen Abrams,Jin-Seok Jeon,Kiran Kulkarni,Anna Matvienko
申请号：
US11488194
公开号：
US08306608B2
申请日:
2006.07.18
申请国别(地区):
US
年份:
2012
代理人:
摘要：
There is provided a high-spatial-resolution dynamic diagnostic instrument which can provide simultaneous measurements of laser-induced frequency-domain infrared photothermal radiometric and alternating-current (ac) modulated luminescence signals from defects, demineralization, remineralization and caries in teeth intraorally. The emphasis is on the abilities of this instrument to approach important problems such as the detection, diagnosis and ongoing monitoring of carious lesions and or defects on the occlusal pits and fissures, smooth surfaces and interproximal areas between teeth which normally go undetected by x-ray radiographs or visual examination. The instrument is also able to detect early areas of demineralized tooth and or areas of remineralized tooth as well as defects along the margins of restorations. This capability of inspecting a local spot can be extended to a modulated imaging of sub-surface of target tooth by using a multi-array infrared camera. Two configurations of the instrument are presented.
