Discussion : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [1]
This study aimed to evaluate the microstructural changes in the peri-implant bone in patients with short implants in terms of the implant survival status by using fractal analysis measurements.
In this study, a significant difference was found in the FD1 and FD2 values between the implant survival groups, and the mean FD1 and FD2 values of the success group were significantly higher than those of the failure group. This result indicates that the assessment of fractal analysis at 3 months after implant insertion may be useful to determine the probability of cases of implant failure. According to our results, the fractal analysis values of the peri-implant bones of cases of implant failure were significantly lower at 0–1 month (FD1) and 1–2 months (FD2) after implantation. This may have contributed to the reduction of trabecular bone density in the bone around the implantation site.
In our study, the ratio of crown-implant length showed no statistically significant difference compared to the success rate of implantation for post-loading implants; however, the small sample size may have contributed to this result. In addition, the values of mean crown-implant ratio were higher in the failure group than in the success group; this finding could be interpreted as an indicator of clinical significance. There was no clinically significant correlation between the crown-implant ratio and FD3 and FD4 values measured after implant loading.
Some studies have stated that measurements of fractal analysis are affected by image noise and exposure parameters, and therefore, these analyses should be applied to standardized radiographs [16, 24]. In contrast, other reports indicate that image acquisition and exposure parameters do not significantly affect measurements of fractal analysis [14, 15, 19, 20].
Ibrahim et al. [20] performed fractal analysis measurements with CBCT and demonstrated high accuracy of measurements as compared to dental radiographs for the diagnosis and follow-up of implant. However, the effective exposure dose during dental tomography is considerably higher than that during dental radiography. Therefore, CBCT is not indicated for the assessment of implant follow-up for all cases of implantation [25].
Serial posts:
- Abstract : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- Backgrounds : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [1]
- Backgrounds : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [2]
- Materials and methods : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [1]
- Materials and methods : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [2]
- Results : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- Discussion : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [1]
- Discussion : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [2]
- Conclusion : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- Availability of data and materials : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- Abbreviations : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- References : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [1]
- References : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [2]
- References : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis [3]
- Acknowledgements : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- Funding : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- Author information : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
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- About this article : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- Table 1 Distribution and description of FD1 and FD2 values, crown-implant ratios, and sex difference between the implant failure and success groups : Evaluation of the peri-implant bone trabecular
- Table 2 Mean fractal dimension (FD) values before and after implant insertion : Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis
- Fig. 1. Fractal dimension values measured from the same area of interest on each panoramic radiograph over five different time intervals are shown in the figure. FD0, fractal dimension 0 (preoperative); FD1, fractal dimension 1 (0–1 months of follow-up); FD2, fractal dimension 2 (1–3 months of follow-up); FD3, fractal dimension 3 (6–12 months of follow-up); FD4, fractal dimension 4 (12 + months of follow-up) : Evaluation of the peri-implant
- Fig. 2. Region of interests (ROIs) were selected arbitrarily in a preoperative radiographic image and b a follow-up radiographic image : Evaluation of the peri-implant
- Fig. 3. Fractal analysis stages. a Selected region of interest (ROI). b Cropped and duplicated version of ROI. c Addition of Gaussian filter. d Subtraction. e Addition of 128 pixels. f Binarized version. g Eroded version. h Dilated version. i Inverted version j Skeletonization : Evaluation of the peri-implant
- Fig. 4. The crown-implant ratio measurement showing a the length of the crown (red line) and b the length of the implant (red line) : Evaluation of the peri-implant
- Fig. 5. Pie charts shows the distribution of the demographic datas of the patients : Evaluation of the peri-implant
- Fig. 6. Pie chart shows the distribution of loaded implants prosthetic restorations : Evaluation of the peri-implant
- Fig. 7. The box plot shows the distribution of age between the sex groups : Evaluation of the peri-implant