15. Uluslararası Türk Endodonti Derneği Kongresi, Bursa, Turkey, 8 - 10 June 2023, pp.63-64
Aim: The aim of this study was to compare the quantitative change of bone trabeculation in periapical lesion areas after root canal treatment (RCT) with fractal analysis in systemically healthy smokers versus systemically healthy nonsmokers. Materials and Methods: The data of this study were obtained from a total of 36 teeth in 2 groups (N=36). In the experimental group, data were collected from 17 mandibular teeth with periapical lesions (n=17) belonging to 17 patients who were smokers and did not have any systemic disease, and in the control group, data were extracted from 19 mandibular teeth with periapical lesions belonging to 19 patients who did not smoke and did not have any systemic disease (n=19). Initial radiographs and 1 year after root canal treatment were evaluated. Fractal analysis was performed by selecting the region of interest in radiographs. The changes of fractal dimensions in the lesion area were calculated and compared for both groups. Since the data were found to be normally distributed in both groups, the independent t-test was used to compare the periapical healing between the smoking and non-smoking groups. For within group comparisons, the fractal dimension values of before RCT and 1 year after RCT were compared with the dependent t-test. P ≤ 0.05 was set as the limit of significance. Results: There were statistically significant increase in fractal dimension values of 1 year after RCT in both nonsmoker (p=0.000) and smoker (p=0.000) groups. There was no statistically significant difference in fractal dimension increase between smoker and non-smoker groups (p=0.774). Conclusion: A statistically significant periapical healing was detected in both groups 1 year after root canal treatment. No statistically significant effect of smoking was observed on fractal dimension increase after RCT.
Keywords: Fractal dimension, Periapical healing, Apical periodontitis, Smoking