Implementation of Micro CT in CAD/CAM dentistry for image processing and soft computing: a review

Yajvinder,; Gulati, Vishal

doi:10.1088/1742-6596/1432/1/012079

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…However, we wanted to implement real world data including representative loading situations in the human oral cavity, allowing translation and generalization of outcomes. One possible way of further in-depth ex vivo biological and mechanical testing of CAD/CAM restorations could be the application of post-treatment analysis using a combination of µ-CT and finite element techniques [56,57]. We included only prospective studies, leading to a higher evidence grade compared to the inclusion of case series and retrospective studies.…”

Section: Discussionmentioning

confidence: 99%

Clinical Performance of CAD/CAM All-Ceramic Tooth-Supported Fixed Dental Prostheses: A Systematic Review and Meta-Analysis

Saravi

Vollmer

Hartmann³

et al. 2021

Materials

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Although CAD/CAM ceramics present a promising alternative to metal-ceramic fixed dental prostheses, little is known about their mid- and long-term clinical performance. This systematic review aims to estimate the survival and success rates and describes the underlying complication characteristics for CAD/CAM tooth-supported zirconia- and lithium disilicate-based fixed dental prostheses (FDPs). We systematically searched MEDLINE and Web of Science to find relevant prospective studies with a follow-up of at least one year. We estimated pooled 1-, 5-, and 10-year survival and success rates by combining the collected data in a Poisson regression model. Descriptive statistics were conducted to evaluate the distribution of failures and complications in the included studies. Risk of bias for the included studies was assessed with an adapted checklist for single-arm trials. Pooled estimated 1-, 5-, and 10-year survival rates ranged from 93.80% to 94.66%, 89.67% to 91.1%, and 79.33% to 82.20%, respectively. The corresponding success rates excluding failures, but including any other types of intervention were 94.53% to 96.77%, 90.89% to 94.62%, and 81.78% to 89.25%. Secondary caries was the most frequent cause of failure, followed by chipping of the veneering. The most common cause of complication excluding failures but requiring intervention was chipping of the veneering. Risk of bias was generally acceptable for the included studies, with seven studies associated with low risk of bias, eight studies with a moderate risk of bias, and three studies with serious risk of bias. The current meta-analysis on CAD/CAM-supported FDPs revealed satisfying survival and success rates for up to 10 years of exposure. More prospective studies focusing on long-term performance are needed to strengthen the evidence currently available in the literature.

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Section: Discussionmentioning

confidence: 99%

Clinical Performance of CAD/CAM All-Ceramic Tooth-Supported Fixed Dental Prostheses: A Systematic Review and Meta-Analysis

Saravi

Vollmer

Hartmann³

et al. 2021

Materials

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“…In many applications in research as well as in the industry, computed tomography (CT) is becoming the standard tool to carry out nondestructive inspection of the interiors or testing the properties of an object [ 1 , 2 , 3 , 4 , 5 ]. The common practice in tomographic data acquisition is that an expert with a research question acquires data with the help of an operator.…”

Section: Introductionmentioning

confidence: 99%

Explorative Imaging and Its Implementation at the FleX-ray Laboratory

et al. 2020

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In tomographic imaging, the traditional process consists of an expert and an operator collecting data, the expert working on the reconstructed slices and drawing conclusions. The quality of reconstructions depends heavily on the quality of the collected data, except that, in the traditional process of imaging, the expert has very little influence over the acquisition parameters, experimental plan or the collected data. It is often the case that the expert has to draw limited conclusions from the reconstructions, or adapt a research question to data available. This method of imaging is static and sequential, and limits the potential of tomography as a research tool. In this paper, we propose a more dynamic process of imaging where experiments are tailored around a sample or the research question; intermediate reconstructions and analysis are available almost instantaneously, and expert has input at any stage of the process (including during acquisition) to improve acquisition or image reconstruction. Through various applications of 2D, 3D and dynamic 3D imaging at the FleX-ray Laboratory, we present the unexpected journey of exploration a research question undergoes, and the surprising benefits it yields.

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Micro‐CT evaluation of the effect of various ScRp instrumentation methods on cement loss, porosity and micro‐crack formation

Yıldız

Bağiş

Camgöz

et al. 2023

Int J Dental Hygiene

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ObjectivesThe purpose of this study was to compare the effectiveness of three different instruments on cement loss, porosity and micro‐crack formation, which was not evaluated before, following scaling and root planning (SRP) using micro‐computed tomography (micro‐CT).MethodsIn this experimental study, 30 single‐rooted extracted human teeth were used and divided into three groups. All the teeth were scanned with micro‐CT before and after SRP. Group 1: SRP was performed with Gracey curettes, Group 2: SRP was performed by using an ultrasonic device, and Group 3: SRP was performed by using diamond burs. Cement loss from the root surface, porosity, and micro‐crack formation in the root dentine were analysed. Micro‐CT is used for qualitative and quantitative analysis of samples. The obtained data were analysed statistically (p < 0.05).ResultsMinimum cement loss following SRP was detected with ultrasonic scaler (26.98 mm3), whereas the highest was created by diamond burs (96.20 mm3) (p < 0.05). The total porosity values after SRP were 0.278%, 0.334% and 0.252% for Groups 1, 2 and 3, respectively. Although Group 3 had the least porosity values, there was no statistically significant difference between the groups. The highest micro‐crack formation was seen in Group 2 and the lowest was in Group 1 with a significant difference (p < 0.05).ConclusionsMore cement loss was observed with diamond burs. Ultrasonic devices appear to be a viable alternative to instrumentation with curettes. However, ultrasonic devices should be used carefully because of micro‐crack formation since the micro‐crack resulting from instrumentation with hand instruments is the least of all.

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Implementation of Micro CT in CAD/CAM dentistry for image processing and soft computing: a review

Cited by 3 publications

References 52 publications

Clinical Performance of CAD/CAM All-Ceramic Tooth-Supported Fixed Dental Prostheses: A Systematic Review and Meta-Analysis

Clinical Performance of CAD/CAM All-Ceramic Tooth-Supported Fixed Dental Prostheses: A Systematic Review and Meta-Analysis

Explorative Imaging and Its Implementation at the FleX-ray Laboratory

Micro‐CT evaluation of the effect of various ScRp instrumentation methods on cement loss, porosity and micro‐crack formation

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