| 1623 The Mathematical Analysis of Digital Radiographs: Non-invasive Method for Evaluation of Bone Remodeling around the Osseointegrated Implants | ||
|
A. WOJTOWICZ1, K. CIECHOWICZ2, S. CHABEREK3, D. MATEÑKO1, E. ADAMCZYK4, and K. OSTROWSKI5, 1 Department of Oral Surgery, Medical University of Warsaw, Poland, Poland, 2 Dept.Oral Surgery, Warsaw, Poland, 3 Department of Rentgenodiagnostics, Otwock, Poland, 4 Department of Prosthodontics, Warsaw, Poland, 5 Department of Histology, Warsaw, Poland The evaluation of bone remodelling process on rentgenodiagnosis of integrated dental implants is subjective. Objectives:The aim of this work is non-invasive, mathematical analysis of digital radiographs of bone microstructure around the implant on 3, 12 and 36 months after surgery. Methods:The trabecular structure of the intact bone versus bone around the implants was compared using the Fourier analysis of radiograms. Results:The radial and spatial distribution of Fourier transforms showed that the original trabecular pattern existing in the both,intact bone and bone around the implants is replicated in evident way in the remodeled bone. Four parameters of histograms of the intensity, characterized bone microstructure around the implant were evaluated: standard deviation, skews, energy and entropy. The significant statistically differences on all parameters for examined images were found, mainly for 3 versus 12 months, because the bone remodeling process around the implants in comparison to the control bone. Conclusions:The persistence of replication of original trabecular pattern in remodeled bone around the implants allows for the conclusion that the genetic mechanisms are influencing the organisation of the trabecular pattern of regenerated bone tissue probably mainly under the releasing of the growth factors stimulated locally by loaded forces. Applied digital methodology used for description of radiographic images is objective and allows for non-invasive evaluation of kinetics of bone remodeling after implantology treatment and seems to be useful to evaluation of bone healing process during time in both different implant systems as well as agumentated bone grafts. | ||
| Seq #170 - Human Implant Studies 11:00 AM-12:15 PM, Friday, 27 June 2003 Svenska Massan Exhibition Hall B | ||
|
Back to the Implantology Research Program
| ||