Terahertz Pulse Imaging: A Pilot Study of Potential Applications in Dentistry

Crawley, David A.; Longbottom, Christopher; Cole, Bryan E.; Ciesla, C. M.; Arnone, D. D.; Wallace, Vincent P.; Pepper, M.

doi:10.1159/000072167

Cited by 89 publications

(48 citation statements)

References 9 publications

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“…Optical methods appear to offer a reliable assessment of pulp vitality. Much work has already been carried out in the field of imaging and caries localization by throughput of light with an emphasis on the determination of suitable transmission windows in the IR and THz spectral ranges [7][8][9][10][11][12].…”

mentioning

confidence: 99%

Spectroscopic Study of Human Teeth and Blood from Visible to Terahertz Frequencies for Clinical Diagnosis of Dental Pulp Vitality

Hirmer

Danilov

Giglberger

et al. 2012

J Infrared Milli Terahz Waves

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Transmission spectra of wet human teeth and dentin slices, together with blood of different flow rates were investigated. The measurements carried out over a wide spectral range, from visible light down to terahertz radiation. The results make it possible to find the optimum light frequency for an alloptical determination of pulpal blood flow and, consequently, for clinically diagnosis of tooth vitality.

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mentioning

confidence: 99%

Spectroscopic Study of Human Teeth and Blood from Visible to Terahertz Frequencies for Clinical Diagnosis of Dental Pulp Vitality

Hirmer

Danilov

Giglberger

et al. 2012

J Infrared Milli Terahz Waves

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“…16 It has been noted in another study that the changes in porosity of the dental tissue, which result from caries, have a similar scale to THz wavelengths. 17 The main argument is that electromagnetic waves such as THz would be expected to be strongly scattered by dielectric objects that have the same scale structure as that of the wavelength. This may suggest that the carious tissue is not absorbing but rather scattering the THz radiation, which is the mechanism for the observed attenuation.…”

Section: Discussionmentioning

confidence: 99%

“…This may suggest that the carious tissue is not absorbing but rather scattering the THz radiation, which is the mechanism for the observed attenuation. 17 Another possibility is that because of the porous structure, there might be a higher liquid concentration in carious teeth than in healthy Figure 4 Graphics of absorption coefficient measurements conducted for permanent and primary teeth between 0.1-and 1-THz frequencies. Abs, absorption.…”

Section: Discussionmentioning

confidence: 99%

Characterization of primary and permanent teeth using terahertz spectroscopy

Kamburoğlu¹,

Yetimoĝlu²,

Altan³

2014

Dentomaxillofacial Radiology

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Objectives: To analyse teeth samples by using terahertz time-domain spectroscopy (THz-TDS) system that was developed in the laboratory to measure the properties of sliced teeth sections in transmission mode. Methods: Using home-built THz-TDS system, we analysed a total of 25 teeth samples (9 primary and 16 permanent teeth). For transmission measurements, the refractive index and absorptive properties of the teeth sections were calculated. Difference between groups was tested using Mann-Whitney U-test statistics at the specific frequency of 0.5 THz, which was at the midpoint of the bandwidth. Median and minimum-maximum values were given as descriptive statistics. Type-I error rate was taken as a 5 0.05. Results: Median refractive index values for permanent and primary teeth were found to be 2.53 and 2.54, respectively. Median absorption coefficient values for permanent and primary teeth were found to be 26.29 and 29.67, respectively. Median refractive index values for both healthy and carious teeth were found to be 2.54. Median absorption coefficient values for healthy and carious teeth were found to be 26.52 and 27.13, respectively. Although higher median absorption coefficient values were found for primary and carious teeth than those of permanent and healthy teeth, the differences were insignificant (p . 0.05). In addition, no statistical differences were found for refractive index values among different groups (p . 0.05). Conclusions: THz imaging has the potential to be used in assessing dental structures.

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“…(6)(7)(8)(9)(10)(11)(12)(13)(14) On the other hand, panoramic radiography is widely used for the diagnosis and screening of patients with dental problems; although it is not as useful as periapical radiography for detecting small carious lesions. (15) The studies have revealed that there is good agreement between panoramic radiography and intraoral in detecting dentinal caries.…”

Section: The Agreement Of Paper and Film Prints In Detection Of Dentimentioning

confidence: 99%

The Agreement of Paper and Film Printed Panoramic Radiographs in Detection of Dentinal Caries

Abesi

Baghbani

Haghanifar

et al. 2017

3dj

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Introduction:Dental caries is dramatically common among people. The aim of this study was to evaluate the agreement of paper prints and film prints and monitor in detection of dentinal caries in digital panoramic radiography. Materials and methods:In this analytical study, radiographic images of 150 patients referred to a private clinic and who needed panoramic radiographs for various reasons, were used. Images were printed on paper and film. Dentinal caries in molars were classified into three categories; with caries, unknown and without caries. Data were collected in checklist and recorded in SPSS 22 Kappa coefficient rate of the data was used for obtaining agreement between the paper prints and film prints and also between monitor and film prints. Results:Kappa coefficient between the paper prints and film prints was 0.88 and between monitor and film prints was 0.92. Conclusion:According to the results of this study, paper prints could be useful in diagnosis of dentinal caries in panoramic radiographies.

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Terahertz Pulse Imaging: A Pilot Study of Potential Applications in Dentistry

Cited by 89 publications

References 9 publications

Spectroscopic Study of Human Teeth and Blood from Visible to Terahertz Frequencies for Clinical Diagnosis of Dental Pulp Vitality

Spectroscopic Study of Human Teeth and Blood from Visible to Terahertz Frequencies for Clinical Diagnosis of Dental Pulp Vitality

Characterization of primary and permanent teeth using terahertz spectroscopy

The Agreement of Paper and Film Printed Panoramic Radiographs in Detection of Dentinal Caries

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