Evaluating Maxilla Bone Quality Through Clinical Investigation of Voxel Grey Scale Values from Cone-Beam Computed Tomography for Dental Use

Andruch, Krzysztof; Płachta, Anna

doi:10.17219/acem/28113

Cited by 13 publications

(10 citation statements)

References 13 publications

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“…Looking for the mean of relative GVs for mandibular corticals and for trabecular bone, distinct differences between corticals and trabecular bone density were disclosed. The obtained results of mean relative GVs in anterior part of both mandible compared with maxilla from the other study were on similar level [11]. In anterior section, vestibular relative mean GV of cortical plate was slightly lower compared with one in maxilla but lingual/palatal cortical relative mean GV for both jaws had close values.…”

Section: Resultssupporting

confidence: 72%

“…The latest one is the concept of using cortical bone as a reference object for assessing relative changes of alveolar trabecular bone [10]. The relative grey values were also used in the previous study to overcome the issue of different scanning conditions where maxillary bone quality was evaluated and a modified voxel grey scale was successfully used [11]. The purpose of this study was to investigate the clinical possibility to measure the mandible relative radiological bone density values and asses the correlation between rescaled and relative GV, in order to evaluate quality of cortical and trabecular alveolus tissue.…”

Section: Introductionmentioning

confidence: 99%

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The Use of Relative Voxel Grey Values in CBCT to Evaluate Radiological Bone Density in the Mandible

Andruch¹,

Cecotka²

2018

IJDSR

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Quality of CBCT images allows for detailed analysis of bone but tissue mineral density can be evaluated with some limitations. The purpose of this study was to investigate the clinical possibility to measure the mandible relative radiological bone density for cortical and trabecular tissue. The CBCT scans were taken with the use of PaxReve3D machine and analyzed by Ez3DPlus software. A modified scale was applied and the ratio of radiological density to measured highest value (HV) was calculated. The relative grey values (GV) of alveolar bone in mandible were measured. Basal cortical reference values (BCRV) of bone density were applied and compared with HVs. Statistically significant very strong positive correlation was observed between relative and rescaled GV for all available data r = 0.901; p < 0.0001. Pearson's correlation coefficient between BCRVs and HVs was found as positive and strong r = 0.640 with R 2 = 0.409. With the limitations of the study the use of relative grey scale values to evaluate radiological density of mandible is promising and easy to apply method.

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Section: Resultssupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

The Use of Relative Voxel Grey Values in CBCT to Evaluate Radiological Bone Density in the Mandible

Andruch¹,

Cecotka²

2018

IJDSR

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“…Three-dimensional imaging using cone beam computed tomography provides a method to characterize the bone quantity and bone mineral density (bone quality) [ 16 , 17 ]. Studies have shown that cone beam computed tomography (CBCT) can be used for assessing the bone quantity and quality (bone mineral density) of the maxillary and mandibular bones [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Gender and growth variation in palatal bone thickness and density for mini-implant placement

et al. 2018

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BackgroundThe objective was to compare the palatal bone thickness (PBT) and palatal bone density (PBD) in the anterior, middle, and posterior part of the palate in males and females.MethodsThis retrospective study reviewed cone beam computed tomography scans of 359 patients. The scans were divided into 99 growing males, 105 growing females, 74 non-growing males, and 81 non-growing females. The measurements of PBT and PBD were made in between the canine and first premolar, the first premolar and second premolar, the second premolar and first molar, and the first molar and second molar. The measurements were made in the center of the palate and 4 mm away from the center. ANOVA was used to analyze the PBT and PBD in different areas between four different groups.ResultsThe PBT was lower (P < 0.0001) as we moved from the anterior to the posterior palate. The PBT was more (P < 0.001) in the center of the palate than 4 mm away from the center, except in between the canine and first premolar. The growing male and non-growing male had higher (P < 0.0001) PBT than the growing female and non-growing female in between the canine and first premolar and the first premolar and second premolar both in the center and 4 mm away from it. The PBD was higher (P < 0.05) in between the canine and first premolar area at the center of the palate and between the second premolar and first molar 4 mm away from the center in all the experimental groups.ConclusionsThere exists a definite gender and growth variation in the PBT and PBD in different parts of the palate. Palatal bone thickness between the males and females revealed that the males had significantly higher PBT than the females.

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“…20 However, a modified greyvalue approach has also been investigated, with positive results in vitro and in vivo in terms of bone quality measurements and implant planning. [21][22][23][24] In this study we did not measure grey values in CBCT; we only tested different windowing protocols for CBCT images to find the best contrast between teeth and the surrounding structures. We found that a protocol proposed (but not validated) by Spin-Neto for I-CAT (1131/1858) was significantly the best for obtaining accurate tooth volumes from in vivo I-CAT CBCT images (Fig.…”

Section: Discussionmentioning

confidence: 99%

Validation of a windowing protocol for accurate in vivo tooth segmentation using i-CAT cone beam computed tomography

Rastegar

Thumilaire²,

Odri

et al. 2018

Adv Clin Exp Med

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Evaluating Maxilla Bone Quality Through Clinical Investigation of Voxel Grey Scale Values from Cone-Beam Computed Tomography for Dental Use

Cited by 13 publications

References 13 publications

The Use of Relative Voxel Grey Values in CBCT to Evaluate Radiological Bone Density in the Mandible

The Use of Relative Voxel Grey Values in CBCT to Evaluate Radiological Bone Density in the Mandible

Gender and growth variation in palatal bone thickness and density for mini-implant placement

Validation of a windowing protocol for accurate in vivo tooth segmentation using i-CAT cone beam computed tomography

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