To assess the level of bone with respect to the coronal part of the implant, digital intraoral plates of adults with a size 2 of 31x44 millimeters were used as a radiographic film. All the implants were from the Ticare® commercial house. The exclusion criteria applied were: 1) less than 2 years of follow-up 2) badly parallel radiographs 3) X-rays with the presence of artifacts that prevent measurement. The inclusion criteria applied were well-parallel digital radiographs: 1) initial on the day of implant placement 2) follow-up from 2 to 5 years. The sample of implants studied was selected based on the inclusion and exclusion criteria. This study was designed following the Helsinki declaration and the STROBE statement ( 10).ġ50 dental implant x-rays taken at the Master of Oral Surgery and Implantology at the University of Valencia were selected. Any data that might disclose the identity of the subjects under study have been omitted. All subjects gave their informed consent to take part in the study. Rights have been protected by the Institutional Review Board. The study protocol was approved by the Ethics Committee for Research Involving Human Subjects at the University of Valencia, Spain (H1506593103796).
Xray vision photoshop software#
The aim of this study was to evaluate the validity of three different software: Specific radiology software for developing and displaying images in DICOM format (3Dicom Viewer®), advanced level software for professional editing of bitmap images (or graphics) rasterized) (Adobe Photoshop®), and free software, of medium level, for processing images of bitmap type, programmed in Java (ImageJ®). Digital image software programs, in general, offer many tools for the analysis of these ( 9). In this way, it is possible to form the radiological image in the computer. The digital image that is obtained is composed of pixels (or bitmap), each of which is assigned a numerical value of position in the image and of luminosity in gray scale. The current trend is the measurement through the use of specific software development and visualization of radiographs. In this way, the authors assigned positive values when the bone was above the platform, value 0 when it was at the level of the platform and negative value when it was below. Several authors ( 4- 8) modified this measurement protocol because the placement of implants in a subcrestal position implied an initial bone level above the implant platform. Traditionally, a “classic protocol” has been used in periapical radiography where two visible and easily identifiable reference points were located at each end, mesial and distal, of the implant platform.
The analysis of peri-implant bone loss has been well studied over the years. However, since it is a two-dimensional image, it is evident that in the case of vestibular and lingual bony defects, there are limitations of visualization ( 3). According to several studies, digital periapical radiography is the most indicated to assess the level of the bone crest. The radiological techniques indicated for peri-implant diagnosis are: periapical radiography, extraoral panoramic radiography and computerized tomography (conventional or cone-beam) ( 2). The quantity and quality of bone surrounding the implant is one of the essential factors for the medium and long-term success of this therapy and is decisive in the morphology, quality and aesthetics of soft tissue sealing in the implant-supported restoration ( 1).
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