Up until now, with methods such as MRI, confocal microscopy, OB depth structure in vivo had not been clearly visualized as these do not satisfy the criterion of simultaneously providing micron-scale spatial resolution and imaging up to a few millimeter in depth.
To determine the stability of the peri-implant hard and soft tissue, the following parameters were analyzed: implant survival, that is, the implants being in situ; the width and thickness of the peri-implant keratinized gingiva (in millimeters); the probing depth (in millimeters); BOP; peri-implant bone loss (in millimeters); and the presence of peri-implant osteolysis.
OCT has high transverse resolution (<10 µm), which allows for the visualization of individual micro-retroreflectors in tissue, high SNR (up to 120 dB) for the precise detection of optical signals when returning from tissue, high in-depth resolution (~10 µm), and several millimeters of depth penetration in order to image through the stratum corneum and epidermis layers of the skin.
Variables with a potential impact on the results were the patients' age and gender as well as localization, size in square millimeters, resection depth, and dignity of the lesion.
The Tribute to 1931 watch runs with a Jaeger-LeCoultre Caliber 822 ultra-thin, manually wound movement, manufactured in-house, that measures 2.94 millimeters, or a tenth of an inch, in depth.
The "Tribute to 1931" watch runs with a Jaeger-LeCoultre Caliber 822 ultra-thin, manually wound movement, manufactured in-house, that measures just 2.94 millimeters, or a tenth of an inch, in depth.
The holes ranged in depth from a shallow half-a-millimeter to 3.5 millimeters, deep enough to pierce the enamel and enter the sensitive dentin.
At termination of the study at 2 weeks, the cortical bone and skin incisions were harvested in cross section from the center of the lesion for a measurement (in millimeters) of visible depth of tissue change and cross-sectional histologic analysis.
The OCT system can acquire cross-sectional images with a field-of-view of a few millimeters in the transverse direction and ~600 µm in depth at a speed of ~100 frames/s.
