Quantum Dental Technologies Inc.

Other

Stephen Abrams

Andreas Mandelis

Koneswaran S Sivagurunathan

Josh Silvertown

Jin-Seok Jeon

Anna Matvienko

Adam Hellen

Joshua Daniel Silvertown

Nima Tabatabaei

Jinseok Jeon

Bonny Wong

Kiran Kulkarni

Joshua D Silvertown

An intraoral optical probe is provided that includes a distal elongate optical waveguide for interrogating dental tissue. In some example embodiments, the elongate optical waveguide has dimensions suitable for the insertion of the waveguide into an exposed root canal. According to various example embodiments, the elongate optical waveguide, when inserted into an internal region of a tooth, can direct incident optical radiation from the intraoral optical probe directly onto an inner surface, such as an internal surface of a root canal, such that status of the root canal can be interrogated directly. The intraoral optical probe may be employed to provide intraoperative feedback regarding internal dental tissue, such as interoperative feedback pertaining to the interior of the root canal during an endodontic procedure, location of secondary or lateral root canals, location of the apex or tip of the root canal system and or detection of the pulp chamber roof or floor.

Devices and methods for the intra-operative verification of oral health procedures

Systems and methods are disclosed in which a diagnostic probe is configured for performing diagnostic measurements and/or therapeutic interventions and for measuring the local surface profile of a local surface region an object. Various example embodiments are described in which the surface profile of the local surface region, when compared to the surface profile of an extended surface region, is employed to provide guidance for positioning and/or orienting the probe when performing a diagnostic measurement. The surface profile within the local surface region may be employed to generate feedback for repeating a previous diagnostic measurement, such that the repeat measurement is performed at the previous location on the object. In other embodiments, surface profile detection is employed to control the positional and/or orientational probe alignment during an iterative tissue removal method in which successive tissue layers are removed when the presence of a pathology is confirmed via a diagnostic measurement.

Systems and methods for spatial positioning of diagnostic and or treatment probe based on surface profile detection

Systems and methods for improved thermophotonic imaging are provided in which both amplitude and phase image information is obtained with a high signal to noise ratio and depth-resolved capabilities. Image data obtained from an imaging camera is dynamically averaged and subsequently processed to extract amplitude and/or phase image data. The system may be configured for a wide range of imaging modalities, including single frequency modulation (thermophotonic lock-in imaging), Thermal-Wave Radar imaging or Thermophotonic Radar imaging involving chirp modulation, and Binary Phase Coded Modulation. Such imaging modalities may find application in many diverse areas, including non-destructive testing and biomedical diagnostic imaging including the imaging of teeth and monitoring changes in the tooth over time which are due to pathology such as dental caries or erosion.

Systems and methods for thermophotonic dynamic imaging

An apparatus is provided for performing photothermal measurements on a object. The apparatus, which may be provided as a handpiece, houses optical components including a laser, an infrared detector, a dichroic beamsplitter, and focusing and beam directing optics for the delivery of a laser beam to, and the collection of photothermal radiation from, a measured object. Some of the optical components may be provided on an optical bench that is directly attached to a thermally conductive tip portion for the passive heat sinking of internal optical components. The apparatus may further include a sampling optical element and a photodetector for the detection of luminescence, and a camera for obtaining an image of the object during a diagnostic procedure. The apparatus may be employed for the scanning of a tooth to determine an oral health status of the tooth.

Handpiece with integrated optical system for photothermal radiometry and luminescence measurements

A detection system is provided for the measurement of in-vitro dental samples. The detection system includes an optical detection module that is configured for the detection of optical signals that are emitted in response to the absorption of an incident optical beam, and a control and processing unit that is configured for processing the detected optical signals and generating an image. The system also includes a sample holder may be removed and subsequently replaced without requiring recalibration of the system. In some embodiments, the optical detection module is configured for combined measurement of photothermal radiation and luminescence in response to the absorption of the incident optical beam.

Apparatus for in-vitro imaging and analysis of dental samples

A method of oral health risk assessment is provided in which diagnostic data from an oral health detection device and patient risk factor data is processed to provide a integrated risk measure relating to a patient's dental health. The patient risk factor data preferably includes risk factor data such as pathological risk factors, protective risk factors, historical factors, self care factors, behavioral factors, and extrinsic factors. The integrated risk assessment and patient data is preferably provided to a remote server for access by various authorized stakeholders.

Method of assessing oral health risk

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.

Growing community of inventors

Toronto, Canada

Stephen Abrams