Observations of mineralised tissues of teeth in X-ray micro-computed tomography

Chałas, Renata; Szlązak, Karol; Wójcik-Chęcińska, Ilona; Jaroszewicz, Jakub; Molak, Rafał M.; Czechowicz, K.; Paris, Sebastian; Święszkowski, Wojciech; Kurzydłowski, Krzysztof J.

doi:10.5603/fm.a2016.0070

Cited by 11 publications

(15 citation statements)

References 25 publications

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“…Due to its high accuracy (Chałas et al, ), the CBCT examination was the “gold standard” (Table ) in assessing the presence of dental caries—or lack thereof (wherein any stage above R0 indicated caries). Due to the limited availability of CBCT and X‐ray units as well as the high costs of examination at a later stage of analysis, the material was limited to 103 randomly selected teeth.…”

Section: Methodsmentioning

confidence: 99%

“…In clinical practice, there are numerous methods which make it possible to assess the stage of dental caries in a quick, effective and relatively accurate manner, including those based on fluorescence or X‐ray/cone beam computed tomography (CBCT) imaging (Chałas et al, ; Pitts et al, ). In the case of research on archeological material, the assessment may be imprecise or sometimes even erroneous (Šlaus, Bedić, Rajić Šikanjić, Vodanović, & Domić Kunić, ; Tomczyk, Komarnitki, Zalewska, Lekszycki, & Olczak‐Kowalczyk, ; Wasterlain, Hillson, & Cunha, ).…”

Section: Introductionmentioning

confidence: 99%

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Diagnodent and VistaCam may be unsuitable for the evaluation of dental caries in archeological teeth

Dąbrowski

Grzelak

Kulus

et al. 2019

American J Phys Anthropol

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Objectives: The aim of the study was to compare the usefulness of fluorescence-based caries detection systems (Diagnodent and VistaCam) for the assessment of carious lesions on archeological molars. Materials and methods: The study material consisted of teeth from the Cemetery of St. Mary Magdalene (Cmentarz sw. Marii Magdaleny) in Wrocław, Poland. A sample of 178 permanent molars from 38 skulls were examined. Five surfaces of teeth (occlusal, mesial, distal, buccal, and lingual) were assessed on either basically cleaned or sandblasted teeth. Six diagnostic methods were used to detect carious lesions: the visual classification of the International Caries Detection and Assessment System (ICDAS II), fluorescent methods (Diagnodent and VistaCam), X-ray, cone beam computed tomography and histological sections. The sensitiv-

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Diagnodent and VistaCam may be unsuitable for the evaluation of dental caries in archeological teeth

Dąbrowski

Grzelak

Kulus

et al. 2019

American J Phys Anthropol

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“…The main limit of ultrasonography, µ-MRI and PC-CT is an insufficient spatial resolution of these instruments, which is in the order of 10-100 µm/pixel; instead, whilst microCT and SR-CT can reach higher resolutions in the range of 0.35-10 µm/pixel, they mainly work when there is a marked contrast generated by differences in tissue radiopacity. For these reasons, it is not surprising that microCT has been extensively used with hard tissues, such as bones (Mussmann et al, 2017;Song et al, 2018) and teeth (Chałas et al, 2017;Batool et al, 2018;Velozo and Albuquerque, 2019), whose histological composition makes them naturally radiopaque to X-rays. On the other hand, its application on soft tissues is often restricted by the need to employ contrast agents that are largely unspecific with a partial capacity to highlight the presence of different structures within organs (Metscher, 2009;Pauwels et al, 2013;de S e Silva et al, 2015;de Bournonville et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Micro-Computed Tomography of the Adult Mouse Ovary

Fiorentino

Parrilli

Garagna

et al. 2020

Front. Cell Dev. Biol.

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In the mouse ovary, folliculogenesis proceeds through eight main growth stages, from small primordial type 1 (T1) to fully grown antral T8 follicles. Most of our understanding of this process was obtained with approaches that disrupted the ovary three-dimensional (3D) integrity. Micro-Computed Tomography (microCT) allows the maintenance of the organ structure and a true in-silico 3D reconstruction, with cubic voxels and isotropic resolution, giving a precise spatial mapping of its functional units. Here, we developed a robust method that, by combining an optimized contrast procedure with microCT imaging of the tiny adult mouse ovary, allowed 3D mapping and counting of follicles, from pre-antral secondary T4 (53.2 ± 12.7 µm in diameter) to antral T8 (321.0 ± 21.3 µm) and corpora lutea, together with the major vasculature branches. Primordial and primary follicles (T1-T3) could not be observed. Our procedure highlighted, with unprecedent details, the main functional compartments of the growing follicle: granulosa, antrum, cumulus cells, zona pellucida, and oocyte with its nucleus. The results describe a homogeneous distribution of all follicle types between the ovary dorsal and ventral regions. Also, they show that each of the eight sectors, virtually segmented along the dorsal-ventral axis, houses an equal number of each follicle type. Altogether, these data suggest that follicle recruitment is homogeneously distributed all-over the ovarian surface. This topographic reconstruction builds sound bases for modeling follicles position and, prospectively, could contribute to our understanding of folliculogenesis dynamics, not only under normal conditions, but, importantly, during aging, in the presence of pathologies or after hormones or drugs administration.

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“…In dentistry, it resulted that micro-CT allows biomaterials assessment, a precise analysis of materials used and the main parameters, as surface area, surface structure, internal structure, porosity, and the nature of the connection among them and the living tissue [21]. It represents a highly accurate method for the assessment of the polymerization shrinkage in composite restorations [45].…”

Section: Evidence and Effectiveness By Literature Reviewsmentioning

confidence: 99%

“…Dentistry and maxillofacial surgery (MFS) represent two sectors that affect the biomedical engineering context and in which there was an extensive use of the micro-CT due to the necessity to acquire detailed information of small and complex objects, mineralized structures [17][18][19], and with different densities. The market is characterized by innovative materials and solutions that require advanced technology in routine-based activity of dental labs and clinics as the micro-CT scanning [20], whose capabilities turn out to be indispensable [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Ten Years of Micro-CT in Dentistry and Maxillofacial Surgery: A Literature Overview

Campioni¹,

Pecci

Bedini

2020

Applied Sciences

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Micro-computed tomography (micro-CT) is a consolidated imaging technology allowing non-destructive three-dimensional (3D) qualitative and quantitative analysis by the observation of microstructures with high resolution. This paper aims at delivering a structured overview of literature about studies performed using micro-CT in dentistry and maxillofacial surgery (MFS) by analyzing the entire set of articles to portray the state of the art of the last ten years of scientific publications on the topic. It draws the scenario focusing on biomaterials, in vitro and in/ex vivo applications, bone structure analysis, and tissue engineering. It confirms the relevance of the micro-CT analysis for traditional research applications and mainly in dentistry with respect to MFS. Possible developments are discussed in relation to the use of the micro-CT combined with other, traditional, and not, techniques and technologies, as the elaboration of 3D models based on micro-CT images and emerging numerical methods. Micro-CT results contribute effectively with whose ones obtained from other techniques in an integrated multimethod approach and for multidisciplinary studies, opening new possibilities and potential opportunities for the next decades of developments.

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Observations of mineralised tissues of teeth in X-ray micro-computed tomography

Abstract: Background: The one of the most recent imaging technology is X-ray microtomography which allows non-invasive three (Folia Morphol 2017; 76, 2: 143-148)

Cited by 11 publications

References 25 publications

Diagnodent and VistaCam may be unsuitable for the evaluation of dental caries in archeological teeth

Diagnodent and VistaCam may be unsuitable for the evaluation of dental caries in archeological teeth

Three-Dimensional Micro-Computed Tomography of the Adult Mouse Ovary

Ten Years of Micro-CT in Dentistry and Maxillofacial Surgery: A Literature Overview

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