AI Article Synopsis
- Microimplants are widely used in clinical practices for absolute anchorage, but their success relies heavily on primary stability and can be compromised by microdamage to the cortical bone during insertion.
- Previous studies on microdamage have mostly been 2D or invasive; this study utilizes a non-invasive technique called Optical Coherence Tomography (OCT) to examine microdamage around the microimplants.
- The research involved inserting 80 microimplants using both drilling and drill-free methods at different angles, revealing microdamage such as cracks and bone debris, which can be visually and quantitively assessed with 2D and 3D imaging.
Article Abstract
Microimplants are being used extensively in clinical practice to achieve absolute anchorage. Success of microimplant mainly depend on its primary stability onto the cortical bone surface and the associated Microdamage of the cortical bone during insertion procedure leads to many a microimplants to fail and dislodge from the cortical bone leading to its failure. Even though, previous studies showed occurrence of microdamage in the cortical bone, they were mainly 2-dimension studies or studies that were invasive to the host. In the present study, we used a non-invasive, non-ionizing imaging technique- Optical Coherence Tomography (OCT), to image and analyze the presence of microdamage along the cortical bone surrounding the microimplant. We inserted 80 microimplants in two different methods (drill and drill free method) and in two different angulations onto the cortical bone surface. Images were obtained in both 2D and 3D imaging modes. In the images, microdamage in form of microcracks on the cortical bone surface around the bone-microimplant interface and micro-elevations of the cortical bone in angulated microimplant insertions and the presence of bone debris due to screwing motion of the microimplant on insertion can be appreciated visually and quantitatively through the depth intensity profile analysis of the images.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6397251 | PMC |
| http://dx.doi.org/10.1038/s41598-019-39670-9 | DOI Listing |
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