Non-destructive 3D imaging of composite restorations using optical coherence tomography: Marginal adaptation of self-etch adhesives

Makishi, Patrícia; Shimada, Yasushi; Sadr, Alireza; Tagami, Junji; Sumi, Yasunori

doi:10.1016/j.jdent.2011.01.011

Cited by 84 publications

(82 citation statements)

References 25 publications

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“…The replica technique and OCT are reliable, reproducible, and noninvasive techniques used to determine in vivo and in vitro adaptation of restorations to tooth surface without causing damage. 14,18,20,23,33,35 Thus in this study replica and OCT techniques were used. Previous studies had proved the facility of OCT to investigate adaptation of restorations without cutting the specimens.…”

Section: Discussionmentioning

confidence: 99%

“…Among nondestructive techniques, OCT has been used previously to evaluate the internal adaptations of composite restorations. 18,33,35 Internal adaptations of metal-ceramic and all-ceramic veneers were evaluated in a previous study, 38 but to our knowledge, internal adaptation of ceramic inlays has not been evaluated in the literature. In our study, OCT was used to measure the internal adaptation values of ceramic inlays.…”

Section: Discussionmentioning

confidence: 99%

“…To convert the optical path length to the actual thickness, the optical path length should be divided to the refractive index of the luting cement, which is approximately 1.5 at the measured wavelength. 35,36 This procedure resulted in an accurate quantitative measurement of the internal adaptation. The conversion of optical path length to thickness is explained in the literature.…”

Section: Oct Measurementsmentioning

confidence: 99%

“…17,18,[27][28][29]33,34,35,36,37,38 However, according to our knowledge, few studies exist in the literature related to the investigation of the adaptation of ceramic restorations to tooth structures using OCT. We quantitatively evaluated the marginal and internal adaptations of ceramic inlay restorations using OCT and compared the results with those of the silicone replica technique. Thus, the objectives of the study were to compare the OCT and replica techniques to assess marginal and internal fit and to investigate the marginal and internal adaptation of ceramic inlays.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of adaptation of ceramic inlays using optical coherence tomography and replica technique

2018

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Optical coherence tomography (OCT) has generally been used as a nondestructive technique to evaluate integrities of composite restorations. We investigated marginal and internal adaptations of ceramic inlay restorations with OCT and compared them to results with the silicone replica technique. Round-shaped class I cavities were prepared on 16 human maxillary first premolar teeth. Ceramic inlays were fabricated. Silicone replicas from inlays were obtained and sectioned to measure marginal and internal adaptations with a stereomicroscope (Leica Dfc 295, Bensheim, Germany). Inlays were cemented on respective teeth. Marginal and internal adaptations were then measured with the OCT system (Thorlabs, New Jersey, USA) in 200-μm intervals. Replica and OCT measurements were compared with independent samples t-tests. A paired t-test was used to evaluate the marginal and internal adaptations of each group (p < 0.05). Marginal and internal adaptations were 100.97 ± 31.36 and 113.94 ± 39.75 μm, respectively, using the replica technique and 28.97 ± 17.86 and 97.87 ± 21.83 μm, respectively, using OCT. The differences between the techniques were significant (p = 0.00 and p = 0.01, respectively). On evaluation within the groups, internal adaptation values were found to be significantly higher than the marginal adaptation values for the replica technique (p = 0.00) and OCT (p = 0.00). Therefore, the replica and OCT techniques showed different results, with higher values of marginal and internal adaptation found with the replica technique. Marginal and internal adaptation values of ceramic inlays, whether measured by replica or OCT techniques, were within clinically acceptable limits.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Oct Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of adaptation of ceramic inlays using optical coherence tomography and replica technique

2018

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“…Non-destructive tools that can provide volumetric estimates include confocal microscopy for relatively translucent materials [125], CLSM [126], µCT [127] and OCT used with or without an additional contrast solution [128][129][130]. So far, the methods have been used to appraise sizes of gaps and defects, but not to experiments combining microleakage and creation of artificial carieslike lesions.…”

Section: Microleakagementioning

confidence: 99%

Secondary caries and microleakage

Jokstad

2016

Dental Materials

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Objectives: To critically appraise experimental ex vivo research that has focussed on secondary caries, and to offer possible explanations for the seemingly poor correlation to clinical observations. Methods: The literature relating to the etiopathogenesis or prevention of secondary caries gained from experimental ex vivo research was reviewed, with particular emphasis on microleakage and artificial caries-like lesions.Results: It is doubtful whether a caries wall lesion can exist independently of an outer enamel caries lesion. Microleakage experiments apparently continue to emerge regardless of multiple reviews questioning the reliability and validity of the method. Several of the approaches used to generate artificial caries-like lesions are very aggressive. Remarkably little discussion has evolved about how these aggressive approaches create microenvironments that do not occur in reality. Corrosion-and biodegradation products may influence the biofilm qualitatively and quantitatively and it is difficult to replicate these variables in any ex vivo environment. Clinical data sampling method, patient demography as well as study methodology influences the incidence and prevalence estimates of secondary caries. Clinical results based on clinical work in settings where cost per unit time is of nominal concern do not provide any indications on how the restorative material will perform when placed by the average dentists in the mouths of their spectrum of patients during a busy workday.Recommendations: The term "wall lesion" including its variants is ill defined, has been, and is still being used indiscriminately. Stakeholders should avoid using this ambiguous label due to its connotation to an entity that does not exist per se.

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Noninvasive cross‐sectional imaging of proximal caries using swept‐source optical coherence tomography (SS‐OCT) in vivo

Shimada

Nakagawa

Sadr

et al. 2013

Journal of Biophotonics

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The aim of this study was to determine the diagnostic accuracy of swept-source optical coherent tomography (SS-OCT) in detecting and estimating the depth of proximal caries in posterior teeth in vivo. SS-OCT images and bitewing radiographs were obtained from 86 proximal surfaces of 53 patients. Six examiners scored the locations according to a caries lesion depth scale (0-4) using SS-OCT and the radiographs. The results were compared with clinical observations obtained after the treatment. SS-OCT could detect the presence of proximal caries in tomograms that were synthesized based on the backscatter signal obtained from the proximal carious lesion through occlusal enamel. SS-OCT showed significantly higher sensitivity and larger area under the receiver operating characteristic curve than radiographs for the detection of cavitated enamel lesions and dentin caries (Student's t -test, p < 0.05). SS-OCT appears to be a more reliable and accurate method than bitewing radiographs for the detection and estimation of the depth of proximal lesions in the clinical environment.

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Non-destructive 3D imaging of composite restorations using optical coherence tomography: Marginal adaptation of self-etch adhesives

Cited by 84 publications

References 25 publications

Evaluation of adaptation of ceramic inlays using optical coherence tomography and replica technique

Evaluation of adaptation of ceramic inlays using optical coherence tomography and replica technique

Secondary caries and microleakage

Noninvasive cross‐sectional imaging of proximal caries using swept‐source optical coherence tomography (SS‐OCT) in vivo

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