Correlating Radiographic Fractal Analysis at Implant Recipient Sites with Primary Implant Stability: An In Vivo Preliminary Study

Hayek, Elie; Aoun, Georges; Bassit, Roger; Nasseh, Ibrahim

doi:10.7759/cureus.6539

Cited by 11 publications

(23 citation statements)

References 23 publications

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“…Some studies report that radiographic settings such as kVp, mAs and X-ray angulation may have a minimal effect on the FD (White & Rudolph 1999, Jolley et al 2006. Other studies have indicated that FD values are not affected by contrast, tube angulation and irradiation on the images obtained of acceptable clinical standard (Hayek et al 2020). In addition, during the early healing period, using fractal analysis periapical trabecular pattern changes can be detected, and improvements can be evaluated with numerical data (Chen et al 2005).…”

Section: Discussionmentioning

confidence: 99%

The effect of type 2 diabetes mellitus on changes in the fractal dimension of periapical lesion in teeth after root canal treatment: a fractal analysis study

Aydın¹,

Ocak²,

Bayrak³

et al. 2020

Int Endodontic J

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AimThis single‐centre retrospective case–control study evaluated fractal dimension (FD) changes in radiographs of periapical lesions using a fractal analysis in healthy individuals and type 2 diabetes mellitus (DM) patients following root canal treatment.MethodologyThe study data consisted of two groups: the DM group which contained a total of 46 mandibular molar teeth in 37 patients with no systemic disease other than type 2 DM, and the control group which contained a total of 52 mandibular molar teeth in 41 patients without systemic disease. Periapical radiographs were obtained prior to root canal treatment and 1 year post‐treatment. Fractal analysis was performed by selecting a region of interest on the periapical radiographs. For both groups, the FD changes in lesion area were calculated and compared. In addition, periapical status was evaluated using the periapical index (PAI) scores on periapical radiographs for both groups. Data were analysed using dependent‐sample t‐test, independent‐sample t‐test, Wilcoxon signed‐rank test and Mann–Whitney U‐test.ResultsIn both groups, FD values were increased significantly 1 year post‐treatment as compared with those prior to treatment (P < 0.05). The time‐dependent increase in FD was significantly greater in the control group (P < 0.05). Time‐dependent increases in FD did not differ between genders (P > 0.05). There was a significant decrease in PAI scores in both type 2 DM and control groups depending on time (P < 0.05). No significant difference was found between the groups in terms of time‐related decreasesin PAI scores (P > 0.05).ConclusionAn increase in the FD of the periapical lesion area was observed 1 year after root canal treatment. DM had a negative effect on FD increase.

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Section: Discussionmentioning

confidence: 99%

The effect of type 2 diabetes mellitus on changes in the fractal dimension of periapical lesion in teeth after root canal treatment: a fractal analysis study

Aydın¹,

Ocak²,

Bayrak³

et al. 2020

Int Endodontic J

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“…Hayek et al compared the fractal dimension value of the pre-implant bone with the histological density of the extracted bone block during implant placement. They stated that as the fractal dimension increased, the bone density increased as well [ 17 ].…”

Section: Discussionmentioning

confidence: 99%

Peri-implant bone microstructural analysis and comparison of resonance frequency analysis before prosthetic placement: a retrospective study

ÖZTÜRK

Kış

2022

Clin Oral Invest

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Objectives Fractal analysis is a mathematical method used for the calculation of bone trabeculation and lacunarity. This study aims to evaluate the relationship between resonance frequency analysis (RFA) and fractal dimension (FD) of peri-implant bone to determine the preload stability of implants. Materials and methods In this study, the results of the fractal analysis calculated from the resonance frequency analysis results taken in the 3rd month of the patients who underwent 2-stage implant by the same doctor and the radiographs taken in the same session were evaluated. A hundred implants in 20 patients were applied in this study. The implant stability quotient (ISQ) values of the implants and fractal dimension values of the peri-implant bone were calculated. Results The findings showed that the ISQ1 ( p = 0.008), ISQ2 ( p = 0.038), ROI2 ( p = 0.013), and ROI3 ( p < 0.001) values were statistically significantly higher in men than women. The ISQ1 ( p = 0.003), ISQ2 ( p = 0.013), ROI1 ( p = 0.011), and ROI3 ( p < 0.001) of the mandible were statistically higher than the maxilla. The fractal dimension cut-off value to assess prosthetic loading was found 1.198. Conclusion Fractal analysis is a non-invasive method that can be used in conjunction with clinical examination in the prosthetic loading decision of implants. It is a valuable parameter that can be used without the need for an extra device when it is necessary to reduce the clinical study time. Clinical relevance Calculating the fractal dimension of the peri-implant bone is a practical, economical, and applicable method for clinicians. FD calculated from panoramic radiographs used for diagnosis in routine treatments in clinics where access to the necessary devices for ISQ measurement is not available will contribute to clinical practice. Supplementary Information The online version contains supplementary material available at 10.1007/s00784-022-04464-3.

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“…In the literature, there are many studies evaluating changes in trabeculation as a result of early loading, bone quality, peri-implantitis areas and primary stability of the implant using methods such as fractal dimensional analysis, MCI evaluation and resonance frequency analysis ( Hayek et al, 2020 ; Lee et al, 2010 ; Friberg et al, 1999 ). However, there are few studies investigating whether there is a correlation between pre- and post-operative trabecular pattern with MCI and MCW ( Bayrak et al, 2020 ; Ersu, Akyol & Etöz, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of change in trabecular bone structure surrounding dental implants by fractal dimension analysis and comparison with radiomorphometric indicators: a retrospective study

Karadag

Yılmaz

2022

PeerJ

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Background The trabecular bone surrounding dental implant show some structural changes during healing period. The purpose of this study is to observe the change in trabecular bone with fractal dimensional analysis from baseline to 3rd month of implant placement. It was also aimed to determine the correlation of fractal dimension (FD) change with morphometric indices, mandibular cortical index (MCI) and mandibular cortical width (MCW). Methods Digital panoramic radiographs taken from 14 patients were evaluated in this study. A total of 30 implants which were placed on mandibular premolar or molar region were included. MCI and MCW assessments were made on baseline radiograph and FD were analyzed on baseline and 3rd month radiograph. FD change by time was recorded separately for every ROI. A paired sample t-test was used to evaluate the change between FD-baseline and FD-3rdmonth values. One-way ANOVA was used to determine the relationship between FD change and MCI. FD change and MCW measurements correlation was calculated by Pearson correlation analysis Results FD value increased in 75 of 90 implant-adjacent regions evaluated in the 3rd month and it was observed that the FD values were statistically significantly increased in the mesial, distal and apical regions at the 3rd month measurements. There was no statistically significant relationship between mean FD change and MCI, and there was no correlation between mean FD change and MCW value. Discussion There are many studies evaluating the resorptive changes in bone. However, there are few studies investigating whether there is a correlation between pre- and post-operative trabecular pattern with MCI and MCW. The results of this study indicate that the implants have an improving effect on bone trabeculation in the region where they are placed.

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Correlating Radiographic Fractal Analysis at Implant Recipient Sites with Primary Implant Stability: An In Vivo Preliminary Study

Cited by 11 publications

References 23 publications

The effect of type 2 diabetes mellitus on changes in the fractal dimension of periapical lesion in teeth after root canal treatment: a fractal analysis study

The effect of type 2 diabetes mellitus on changes in the fractal dimension of periapical lesion in teeth after root canal treatment: a fractal analysis study

Peri-implant bone microstructural analysis and comparison of resonance frequency analysis before prosthetic placement: a retrospective study

Evaluation of change in trabecular bone structure surrounding dental implants by fractal dimension analysis and comparison with radiomorphometric indicators: a retrospective study

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