Ultrasonic Periodontal Probe

Hinders, Mark K.; Companion, John C.

doi:10.1007/978-1-4615-4791-4_207

Cited by 7 publications

(5 citation statements)

References 21 publications

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“…Results from a pilot clinical trial showed that correlation between measurements taken by manual probing and with their ultrasonic device were "not particularly good". Also in 1998, Companion and Hinders [41,42] first reported results of an ultrasonic periodontal probe that had been under development at NASA Langley for several years [43,44]. This ultrasonic periodontal probe [45][46][47][48][49] uses a hollow tapered tip that is filled with water for coupling of the ultrasonic beam into the tissues as shown in Fig.…”

Section: The Ultrasonic Periodontal Probementioning

confidence: 99%

Simulations of Ultrasonographic Periodontal Probe Using the Finite Integration Technique

Rudd¹,

Bertoncini²,

Hinders³

2009

TOACOJ

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Periodontal disease is one of the most pervasive dental diseases in older adults. It involves the loss of connective tissue attachment with subsequent destruction of tooth-supporting bone, leading to loss of teeth. Periodontal pocket depth is currently measured with an invasive manual probe, but adapting diagnostic ultrasound to this purpose can avoid the pain and inaccuracy inherent in manual probing. In this paper, 3D simulations of ultrasonic periodontal probe measurements are described, using a parallel finite integration technique which is adaptable enough to create realistic anatomical geometries. The outputs of the simulation include 3D pressure values distributed throughout the periodontal anatomy, 2D vertical cross sections of the acoustic pressure waves, and the pressure across the face of the transducer which is used to synthesize the ultrasonic echo. Experimental comparison with a simple phantom is also shown. Lastly, the energy values for different simulations are calculated from the 3D pressure values to describe the amount of energy reaching different zones, especially the junctional epithelium. The simulations as well as the energy studies show that only a small portion of the ultrasonic energy is reaching the junctional epithelium, and so sophisticated mathematical techniques are required to ultrasonically measure pocket depth.

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Section: The Ultrasonic Periodontal Probementioning

confidence: 99%

Simulations of Ultrasonographic Periodontal Probe Using the Finite Integration Technique

Rudd¹,

Bertoncini²,

Hinders³

2009

TOACOJ

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“…A tip placed over the transducer narrows the ultrasonic beam, so that the beam is approximately the same width as the opening into the sulcus at the gingival margin. Feasibility of the technique was demonstrated in the work of Companion et al [71,72] but optimization of the probe design and clinical testing is required in order for this technique to gain widespread acceptance as a diagnostic tool in the dental community.…”

Section: Introductionmentioning

confidence: 97%

“…Instead, they could only detect echoes off the aveolar bone, and they never gained clinical acceptance. More recently, alternative research has been conducted on the use of ultrasound to image the periodontal pocket space by aiming the transducer apically into the pocket from the gingival margin [68][69][70][71][72]. The major technical barrier to this approach is providing an efficient coupling medium for the ultrasonic wave into the thin (0.25-0.5 mm) periodontal pocket.…”

Section: Introductionmentioning

confidence: 99%

Clinical comparison of an ultrasonographic periodontal probe to manual and controlled-force probing

Lynch¹,

Hinders²,

McCombs³

2006

Measurement

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“…While these efforts proved the feasibility of ultrasonic imaging in dentistry, this version of the technique could not detect periodontal attachment loss, and failed to gain clinical acceptance. Recently, researchers have begun exploring new uses of ultrasound in dentistry [36,37,38,39] and studies have been conducted using ultrasound to image the periodontal pocket space by aiming the transducer apically into the pocket from the gingival margin [40,41,42,43,44,45,46]. The major technical barrier to this approach is providing an efficient coupling medium for the ultrasonic wave into the thin (0.25-0.5 mm) periodontal pocket.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Periodontal Probing Based on the Dynamic Wavelet Fingerprint

Hou

Rose²,

Hinders

2005

EURASIP J. Adv. Signal Process.

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Manual pocket depth probing has been widely used as a retrospective diagnosis method in periodontics. However, numerous studies have questioned its ability to accurately measure the anatomic pocket depth. In this paper, an ultrasonic periodontal probing method is described, which involves using a hollow water-filled probe to focus a narrow beam of ultrasound energy into and out of the periodontal pocket, followed by automatic processing of pulse-echo signals to obtain the periodontal pocket depth. The signal processing algorithm consists of three steps: peak detection/characterization, peak classification, and peak identification. A dynamic wavelet fingerprint (DWFP) technique is first applied to detect suspected scatterers in the A-scan signal and generate a two-dimensional black and white pattern to characterize the local transient signal corresponding to each scatterer. These DWFP patterns are then classified by a two-dimensional FFT procedure and mapped to an inclination index curve. The location of the pocket bottom was identified as the third broad peak in the inclination index curve. The algorithm is tested on full-mouth probing data from two sequential visits of 14 patients. Its performance is evaluated by comparing ultrasonic probing results with that of full-mouth manual probing at the same sites, which is taken as the "gold standard."

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Ultrasonic Periodontal Probe

Cited by 7 publications

References 21 publications

Simulations of Ultrasonographic Periodontal Probe Using the Finite Integration Technique

Simulations of Ultrasonographic Periodontal Probe Using the Finite Integration Technique

Clinical comparison of an ultrasonographic periodontal probe to manual and controlled-force probing

Ultrasonic Periodontal Probing Based on the Dynamic Wavelet Fingerprint

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