Application of Optical Coherence Tomography (OCT) for Diagnosis of Caries, Cracks, and Defects of Restorations

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

doi:10.1007/s40496-015-0045-z

Cited by 121 publications

(101 citation statements)

References 81 publications

(170 reference statements)

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“…In vitro studies showed an adequate to strong agreement, when SS-or SD-OCT were compared to histology [29,42,43], confocal microscopy, X-ray microtomography, or transverse microradiography and a diagnostic superiority compared to bitewing radiography [44] (Figures 1, 2, 5-11 and 14). In vitro studies showed an adequate to strong agreement, when SS-or SD-OCT were compared to histology [29,42,43], confocal microscopy, X-ray microtomography, or transverse microradiography and a diagnostic superiority compared to bitewing radiography [44] (Figures 1, 2 and 5-11 and 14). Image contrast and the spatial separation of the lesion body versus sound enamel can be further enhanced using polarization-sensitive OCT [45].…”

Section: Caries Diagnosismentioning

confidence: 96%

“…At this stage, the subsurface enamel porosity can be stopped or reversed using appropriate non-or minimally invasive therapies and biofilm control [8]. White spot lesions appear whitish as the incident light is backscattered off porous regions to a considerable extent [29,39]. OCT makes use of the same phenomenon.…”

Section: Caries Diagnosismentioning

confidence: 99%

“…The first images of human dental tissues were presented by Colston et al [26,27] and Feldchtein et al [28]. Since then, the number of studies using OCT have increased markedly [29,30]. Seven features which make it particularly suitable for clinical application are non-invasive action avoiding radiation-induced tissue damage; easy to understand cross-sectional and 3D-images of soft and hard tissues; as well as defects at a very early stage with high spatial resolution.…”

Section: Introductionmentioning

confidence: 99%

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Dental Applications of Optical Coherence Tomography (OCT) in Cariology

et al. 2017

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Across all medical disciplines, therapeutic interventions are based on previously acquired diagnostic information. In cariology, which includes the detection and assessment of the disease "caries" and its lesions, as well as non-invasive to invasive treatment and caries prevention, visual inspection and radiology are routinely used as diagnostic tools. However, the specificity and sensitivity of these standard methods are still unsatisfactory and the detection of defects is often afflicted with a time delay. Numerous novel methods have been developed to improve the unsatisfactory diagnostic possibilities in this specialized medical field. These newer techniques have not yet found widespread acceptance in clinical practice, which might be explained by the generated numerical or color-coded output data that are not self-explanatory. With optical coherence tomography (OCT), an innovative image-based technique has become available that has considerable potential in supporting the routine assessment of teeth in the future. The received cross-sectional images are easy to interpret and can be processed. In recent years, numerous applications of OCT have been evaluated in cariology beginning with the diagnosis of different defects up to restoration assessment and their monitoring, or the visualization of individual treatment steps. Based on selected examples, this overview outlines the possibilities and limitations of this technique in cariology and restorative dentistry, which pertain to the most clinical relevant fields of dentistry.

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Section: Caries Diagnosismentioning

confidence: 96%

Section: Caries Diagnosismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dental Applications of Optical Coherence Tomography (OCT) in Cariology

et al. 2017

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“…It constructs images from the back-scattered light of a transilluminated tissue, based on the differences in the optical absorption and scattering properties of the tissue (51,52). OCT has been used in several clinical applications including dermatology (53,54), gastroenterology (55), ophthalmology (56), and dentistry (57,58).…”

Section: Optical Coherence Tomography (Oct)mentioning

confidence: 99%

Alternative methods to visual and radiographic examinations for approximal caries detection

Abogazalah

Ando

2017

Journal of Oral Science

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A shift in caries prevalence from occlusal surfaces to approximal surfaces has been demonstrated by epidemiological studies. Two recent meta-analyses evaluated the performance of visual examination and radiography for carious lesion detection, and reported low sensitivity but high specificity for early approximal caries detection. This suggests that the conventional methods have a higher risk of failing to detect approximal lesions. Consequently, in caries susceptible populations, there is a risk of progression of non-cavitated lesions to irreversible tooth destruction before the lesions are detected. This paper aims to review the performance of unconventional and novel methods for approximal caries detection. In vitro and in vivo studies identified through a MEDLINE search using keywords such as caries detection, approximal caries detection, light fluorescence and dental caries, and transillumination and dental caries were reviewed. The unconventional methods known to be used for approximal caries detection and included in this review are: cone beam computed tomography, fiber-optic trans-illumination, digital imaging fiber optic trans-illumination, nearinfrared digital imaging transillumination, optical coherence tomography, laser fluorescence, ultrasound, and LED reflection and refraction.

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“…Other methods include optical instruments, fiber-optic sensing method, mercury dilatometer, electromagnetic balance and video imaging 12) . Contemporary 2D and 3D imaging methods have been used to analyze in a non-invasive and non-destructive way the behavior of materials inside a standardized cavity, such as finite element analysis 18,21,22) , optical coherence tomography 7,23) , and micro-computed tomography (µCT) 19,22) . These methods have been widely described in literature, due to reliable and significant results 7,18,24,25) .…”

Section: Introductionmentioning

confidence: 99%

Micro-computed tomography evaluation of volumetric polymerization shrinkage and degree of conversion of composites cured by various light power outputs

et al. 2018

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This study evaluated the influence of different light-curing modes on the volumetric polymerization shrinkage and degree of conversion of a composite resin at different locations using micro-computed tomography and Fourier transform infrared spectroscopy (FTIR). Specimens were divided into 4 groups based on the light-curing mode used (Bluephase 20i): 1 -High (1,200 mW/cm 2 ); 2 -Low (650 mW/cm 2 ); 3 -Soft-start (650-1,200 mW/cm 2 ); and 4 -Turbo (2,000 mW/cm 2 ). Degree of conversion was calculated by the measurement of the peak absorbance height of the uncured and cured materials at the specific wavenumbers, and was performed by FTIR 48 h after curing resin samples. Degree of conversion was analyzed using two-way ANOVA. No significant differences were observed independent of the region of the restoration investigated (p>0.05). Different curing modes did not influence volumetric shrinkage neither degree of conversion of class I composite resin restorations.

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Application of Optical Coherence Tomography (OCT) for Diagnosis of Caries, Cracks, and Defects of Restorations

Cited by 121 publications

References 81 publications

Dental Applications of Optical Coherence Tomography (OCT) in Cariology

Dental Applications of Optical Coherence Tomography (OCT) in Cariology

Alternative methods to visual and radiographic examinations for approximal caries detection

Micro-computed tomography evaluation of volumetric polymerization shrinkage and degree of conversion of composites cured by various light power outputs

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