Computer-assisted identification of the gingival sulcus and periodontal epithelial junction on high-frequency ultrasound images

Chifor, Radu; Badea, Mîndra Eugenia; Mitrea, Delia; Badea, Iulia Clara; Crışan, Maria; Chifor, Ioana; Avram, Ramona

doi:10.11152/mu.2013.2066.173.rch

Cited by 13 publications

(13 citation statements)

References 23 publications

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“…Computer-assisted identification of the gingival sulcus and the periodontal epithelial junction on high-frequency ultrasound images lies in the identification and visualization of the gingival sulcus on US images, without the need of a periodontal probe that could influence the gingival attachment level. Moreover, the computer algorithm used in the analysis significantly increased the accuracy of the measurements, as confirmed by the fact that the values did not significantly differ from those obtained by microscopy 4X magnification as a gold standard of the same section as the ultrasonographic one [10].…”

Section: S25mentioning

confidence: 73%

“…A much smaller probe was developed, a periodontal probe, as a spin-off of NASA technology. An ultrasonic transducer projects high frequency (10)(11)(12)(13)(14)(15) ultrasonic energy between the tooth and the gum and detects echoes of the returning wave. In the usual practice of ultrasonography, the time delay of the reflection is converted to a distance measurement by using the speed of sound in water (1482 m/s).…”

Section: Bidimensional Periodontal Ultrasonographic Investigations Umentioning

confidence: 99%

“…Periodontal ultrasonography using 20-MHz DermaScan C Cortex Technology: a) Periodontal ultrasonography using 20-MHZ DermaScan C Cortex Technology; b) Explanatory drawing: gutta percha landmark (GL), enamel tooth crown (E), gingival sulcus (GS), cementum-enamel junction (CEJ), tooth root (R), aleveolar crest (AC), connective tissue (CT), gingival tissue (G), free gingival margin (FGM), cortical bone (CB); a-histological sulcus, b-epithelial attachment, c-connective tissue attachment, biological width (b+c)[10].…”

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confidence: 99%

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Periodontal evaluation using a non-invasive imaging method (ultrasonography)

Chifor

Badea

Chifor

et al. 2019

Medicine and Pharmacy Reports

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The periodontal disease and gingival bleeding are highly prevalent in the adult population worldwide. The World Health Organization (WHO) data shows that 90–100% of the 34-year-old adults present gingival inflammation. Therefore, an investigation method is required to allow the assessment of the periodontal disease as well as the monitoring of the evolution of the gingival inflammation after periodontal treatments. Non-invasive and operator-independent methods for periodontal examination are necessary for diagnosing and monitoring the periodontal disease. The periodontal ultrasonography is a reliable technique for visualizing the anatomical elements which are necessary to diagnose the periodontal status. Using this imaging technique the dentino-enamel junction, the cortical bone, the radicular surface from the crown to the alveolar bone, the gingival tissue can be seen without interfering with those elements during the examination. Also, calculus visualization is possible before and after scaling in order to evaluate the quality of the treatment. Using 2D ultrasonography is not feasible in dental practice as it requires extensive experience and is also time consuming. The reproducibility of the 2D slices is very difficult in order to have the possibility to compare different investigations efficiently. 3D reconstructions of the periodontal tissue can be a very good alternative to eliminate the operator dependence. Ultrasonography allows the practitioner to visualize the anatomic elements involved in making a periodontal diagnosis. It also allows tracking of subsequent changes. This method is not commonly used for periodontal examination and further studies are required. Previous studies show that ultrasonography can be a reliable non-invasive method to diagnose and monitor the periodontal disease.

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Section: S25mentioning

confidence: 73%

Section: Bidimensional Periodontal Ultrasonographic Investigations Umentioning

confidence: 99%

mentioning

confidence: 99%

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Periodontal evaluation using a non-invasive imaging method (ultrasonography)

Chifor

Badea

Chifor

et al. 2019

Medicine and Pharmacy Reports

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“…This pilot study showed that OCT is suitable for in vivo humans imaging of the microscopic appearance of gingival sulcus and nearby tissues without any adverse side effects, artifacts or staining procedures. Thus, a clinical methodology was adopted and comparison was made with traditional probes and promising technologies such as ultrasonic probing and computerized probing with optical fiber sensors .…”

Section: Discussionmentioning

confidence: 99%

In vivo assessment of periodontal structures and measurement of gingival sulcus with Optical Coherence Tomography: a pilot study

Fernandes

Mota

Melo

et al. 2016

Journal of Biophotonics

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There has been increasing interest on the development of clinically acceptable, more sensitive and specific methods for non-invasive diagnosis in Periodontics. In this pilot study, the performance of an Optical Coherence Tomography (OCT) system in imaging periodontal structures in humans was evaluated. Gingival sulcus depth measurements were obtained and compared with traditional probes. In total, 445 sites of 23 periodontally healthy individuals were measured by 3 instruments: North Carolina manual probe, Florida automated probe and OCT at 1325 nm. To obtain quantitative measurements from OCT images, the gingival refractive index was also determined. Discomfort/pain perception and the duration of examinations were compared among the instruments. The analysis of OCT images allowed the identification of relevant anatomic dental and periodontal regions. The average sulcus depth measured by OCT, 0.85 ± 0.27 mm and 0.87 ± 0.28 mm, was lower than the values obtained by manual and automated probing. Discomfort/pain were prevalent for traditional probes, which are invasive methods, than for the non-invasive OCT technique. OCT has the potential to be a reliable tool for in vivo periodontal tissues evaluation and for reproducible sulcus depth measurements in healthy sites. Further technological advances are required to reduce the procedure time and promote evaluation of posterior oral regions. Photonic assessment of periodontal tissue with OCT (top) in a clinical environment, showing tooth/gingiva features (bottom).

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“…Sanchez [8] proposed a useful tool for identifying patients at high risk of stroke and selecting those who can benefit most from revascularization therapies such as carotid endarterectomy and stenting. Chifor [9] demonstrated that periodontal ultrasonography is a reliable method with which to identify and evaluate the attachment level of the gingival junctional epithelium. Vatansever [10] proposed fetal neuroimaging study that provide normal posterior fossa growth trajectories during the second and third trimesters of pregnancy via semi-automatic segmentation of reconstructed fetal brain MR images and to assess common cerebellar malformations in comparison with the reference data.…”

Section: Introductionmentioning

confidence: 99%