Assessment of buccal marginal alveolar peri-implant and periodontal defects using a cone beam CT system with and without the application of metal artefact reduction mode

Kamburoğlu, Kıvanç; Kolsuz, Eray; Murat, Sema; Eren, Hakan; Yüksel, Selcen; Paksoy, Candan Semra

doi:10.1259/dmfr.20130176

Cited by 97 publications

(129 citation statements)

References 25 publications

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“…Further studies should be conducted to compare different implant brands in assessing defect visibility around implants. A recent study 19 found that there was no difference in the detection of simulated buccal peri-implant defects among CBCT images obtained with and without the artefact reduction modes of the Planmeca ProMax ® 3D Max CBCT unit (Planmeca Oy, Helsinki, Finland). In this study, we did not use any artefact reduction filter as the CBCT unit chosen for this study does not offer different artefact reduction modes.…”

Section: Discussionmentioning

confidence: 99%

“…Streak artefacts due to the presence of scatter radiation as linear hyperdensities radiating from the metallic object might extend to the entire width of the field, affecting even the visualization of areas on the opposite side of the jaw. 15,19 Beam hardening artefacts appear as dark voids adjacent to high-density structures, such as titanium implants, and are due to the differential absorption of low-energy X-ray photons by high-density materials. 19,20 The severity of these artefacts produced by dental implants on image quality has been reported to be greater for CBCT than for multislice CT, 21 to be CBCT unit dependent, 22 to influence the reliability of linear measurements of adjacent marginal bone 23 and to vary depending on the implant surface, with increasing Gray values occurring on buccal and lingual aspects.…”

Section: Introductionmentioning

confidence: 99%

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Accuracy of CBCT images in the assessment of buccal marginal alveolar peri-implant defects: effect of field of view

Kamburoğlu

Murat²,

Kılıç³

et al. 2014

Dentomaxillofacial Radiology

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Objectives: To investigate the reliability and accuracy of cone beam CT (CBCT) images obtained at different fields of view in detecting and quantifying simulated buccal marginal alveolar peri-implant defects. Methods: Simulated buccal defects were prepared in 69 implants inserted into cadaver mandibles. CBCT images at three different fields of view were acquired: 40 3 40, 60 3 60 and 100 3 100 mm. The presence or absence of defects was assessed on three sets of images using a five-point scale by three observers. Observers also measured the depth, width and volume of defects on CBCT images, which were compared with physical measurements. The kappa value was calculated to assess intra-and interobserver agreement. Six-way repeated analysis of variance was used to evaluate treatment effects on the diagnosis. Pairwise comparisons of median truepositive and true-negative rates were calculated by the x 2 test. Pearson's correlation coefficient was used to determine the relationship between measurements. Significance level was set as p , 0.05. Results: All observers had excellent intra-observer agreement. Defect status (p , 0.001) and defect size ( p , 0.001) factors were statistically significant. Pairwise interactions were found between defect status and defect size (p 5 0.001). No differences between median true-positive or true-negative values were found between CBCT field of views (p . 0.05). Significant correlations were found between physical and CBCT measurements (p , 0.001). Conclusions: All CBCT images performed similarly for the detection of simulated buccal marginal alveolar peri-implant defects. Depth, width and volume measurements of the defects from various CBCT images correlated highly with physical measurements.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accuracy of CBCT images in the assessment of buccal marginal alveolar peri-implant defects: effect of field of view

Kamburoğlu

Murat²,

Kılıç³

et al. 2014

Dentomaxillofacial Radiology

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“…However, we could not confirm this hypothesis, as some have already reported. 4,24 When assessing two different imaging systems with AR (Picasso Master 3D and Planmeca ProMax ® 3D Max; Planmeca Oy, Helsinki, Finland) regarding root fracture diagnosis in teeth filled with gutta percha, Bechara et al 4 reported overall inferior results with the use of the tool. By using an AR in an attempt to improve the detection of peri-implant and periodontal defects, Kamburoglu et al 24 were also unable to deliver promising conclusions.…”

Section: Discussionmentioning

confidence: 99%

“…4 Additionally, no differences were observed in the detection of simulated periodontal and peri-implant vestibular defects with or without the use of an AR. 24 Thus, the benefits of using an AR are not well established, and studies to date have used either subjective or objective evaluations but not the two forms of assessments combined. In addition, studies that evaluate the usefulness of AR in the detection of root fractures in teeth with intracanal metal posts, which happen relatively often, are missing.…”

Section: Introductionmentioning

confidence: 99%

Influence of the artefact reduction algorithm of Picasso Trio CBCT system on the diagnosis of vertical root fractures in teeth with metal posts

Bezerra¹,

Neves²,

Vasconcelos³

et al. 2015

Dentomaxillofacial Radiology

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Objectives: To assess the influence of the artefact reduction algorithm (AR) available on the Picasso Trio 3D ® imaging system (Vatech, Hwaseong, Republic of Korea) on image quality [greyscale values, contrast-to-noise ratio (CNR) and artefact formation] and diagnosis of vertical root fractures (VRFs) in the teeth with intracanal metal posts. Methods: 30 uniradicular teeth had their crowns removed and their roots endodontically treated to receive intracanal metal posts. In 20 teeth, both complete (n 5 10) and incomplete (n 5 10) VRFs were created. Each tooth was scanned twice, with and without AR activation. The mean and variation of greyscale values, as well as CNR, were calculated for all images. Subsequently, an evaluator compared the amount of artefact (cupping, white streaks and dark bands) in all images. Five evaluators rated for VRF presence using a five-point scale.Results: Mean greyscale values and CNR were significantly decreased in images acquired with the AR. The usage of the algorithm promoted an overall reduction of image artefacts. Regarding the diagnosis of complete and incomplete VRFs, the use of the AR had an overall negative impact on specificity and accuracy. Conclusions: While indeed reducing artefact formation, the use of the AR, instead of improving the impact on the diagnosis of VRFs in teeth with intracanal metal posts, had a negative impact on the diagnosis.

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“…Um deles foi realizado por Kamburoglu et al, (19 A região anterior apresentou uma espessura média de 0,9 mm de tábua óssea vestibular, e essa aumentou quanto mais posterior era o dente. Uma alta frequência de deiscências foram encontradas na região anterior e posterior, respectivamente (9,9% a 51,6% e 3,1% a 53,6%).…”

Section: Tomografia Computadorizada De Feixe Cônico (Tcfc) E Artefatounclassified

Influência de artefatos metálicos produzidos pela presença de implantes de titânio na análise das cristas ósseas periodontais adjacentes, em tomografia computadorizada de feixe cônico

Cremonini¹

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Dedico esse trabalho, em especial, para minha família: Meus pais, Carolina Elizabeti Scanavez Cremonini e Fernando Cremonini, principalmente pelo amor, apoio, educação e incentivo à dedicação aos estudos que os dois sempre tiveram por mim. Sem a orientação, força, alegria e garra de vocês, que foi transmitida diretamente para mim em toda a minha jornada de estudos ao longo da minha vida, ou indiretamente pelo exemplo de luta da história de vida de lutadores que vocês tiveram, eu não teria conseguido isso! Vocês são um exemplo para mim! Aos Irmãos Fernando Segundo Cremonini (Nando) e Thaís Cremonini, pelo apoio e carinho. À Ia (Ruth de Quadros) ("in memoriam"), que teve um amor incondicional (e eu por ela!) e cuidado desde sempre por mim. Às secretárias da disciplina de Periodontia, Márcia e Marília.À secretária Regina, pela alegria e descontração.À Alessandra, da pós-graduação. Às bibliotecárias Glauci e Vânia pela gentileza e atenção na correção da minha Tese.Aos funcionários Cesário e Amarildo, pela gentileza durante todos esses anos.À CAPES, pela bolsa de estudos.À Anne Solutions, por gentilmente ceder o uso do software Imaging Studio®.

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Assessment of buccal marginal alveolar peri-implant and periodontal defects using a cone beam CT system with and without the application of metal artefact reduction mode

Abstract: Buccal peri-implant defects were more difficult to detect than buccal periodontal defects. No difference was found among CBCT images obtained with and without AR modes.

Cited by 97 publications

References 25 publications

Accuracy of CBCT images in the assessment of buccal marginal alveolar peri-implant defects: effect of field of view

Accuracy of CBCT images in the assessment of buccal marginal alveolar peri-implant defects: effect of field of view

Influence of the artefact reduction algorithm of Picasso Trio CBCT system on the diagnosis of vertical root fractures in teeth with metal posts

Influência de artefatos metálicos produzidos pela presença de implantes de titânio na análise das cristas ósseas periodontais adjacentes, em tomografia computadorizada de feixe cônico

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