Scattering of laser light directed onto the labial surface of extracted human upper central incisors

Ikawa, Motohide; Vongsavan, Noppakun; Horiuchi, Hiroshi

doi:10.1016/s0099-2399(99)80286-6

Cited by 22 publications

(23 citation statements)

References 14 publications

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“…The technique can measure perfusion quantitatively in real time [31]. However, it has also been claimed that signals from human teeth do not necessarily indicate pulpal blood flow and could be confused with a signal obtained from nearby gingival tissues, suggesting that periodontium and other neighbouring tissues can contribute to the signal [32][33][34]. Polat et al [34] examined the scattering and penetration properties of the laser used in LDF by using a camera with slow speed shutters.…”

Section: Microcirculation Of the Dental Pulpmentioning

confidence: 99%

Laser Doppler Flowmetry Evaluation of the Microcirculation in Dentistry

Todea¹,

Canjau²,

Miron³

et al. 2016

Microcirculation Revisited - From Molecules to Clinical Practice

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This chapter presents the most important features of laser Doppler (LD) techniques: LD flowmetry (LDF) and LD imaging (LDI), together with examples of their clinical applications in dentistry. LDF gives a constant estimation of blood flow at a specified point, whereas LDI gives a 'snapshot' of perfusion at a given point. These methods are non-invasive laser-based techniques for monitoring gingival and pulpal blood flow and could be used as a diagnostic tool. In paediatric dentistry and odontology, LDF proved to be an atraumatic real-time method used for determining the tooth vitality by monitoring the pulp microcirculation in traumatized teeth, fractured teeth and teeth undergoing different conservative treatments (e.g. bleaching, dental preparation for prosthetic restorations, etc.). In periodontology, recent studies showed the ability of LDF to evaluate the health of gingival tissue in different types of periodontal diseases. By using LDF, it is also possible to evaluate the outcome after different periodontal treatments. The laser Doppler line scanning can be used for recording the gingival healing process after a surgical procedure in the anterior area of the oral cavity.

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Section: Microcirculation Of the Dental Pulpmentioning

confidence: 99%

Laser Doppler Flowmetry Evaluation of the Microcirculation in Dentistry

Todea¹,

Canjau²,

Miron³

et al. 2016

Microcirculation Revisited - From Molecules to Clinical Practice

View full text Add to dashboard Cite

show abstract

“…Whilst this technique has proved effective and reliable for some body tissues (Belcaro et al. 2000, Braverman 2000, Tabrizchi & Pugsley 2000), the limited translucency and multiple reflectance of teeth have cast doubt upon its validity to assess the condition of the pulp (Ikawa et al. 1999).…”

Section: Introductionmentioning

confidence: 99%

An evaluation of the use of tooth temperature to assess human pulp vitality

et al. 2004

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“…Nonpulpal signals, principally from periodontal blood flow, can significantly contaminate the Flux signal recorded from the pulp, so it has been claimed that signals obtained from human teeth do not necessarily indicate PBF and may be confounded by signals obtained from nearby tissues (Amess et al. 1993, Vongsavan & Matthews 1993b, 1996, Ikawa et al. 1999, Roebuck et al.…”

Section: Factors Influencing the Resultsmentioning

confidence: 99%

“…1996). In fact, laser light on the tooth surface scatters widely outside the tooth, in part reaching the periodontal tissue, and then returns to the detector, resulting in contamination (Ikawa et al. 1999).…”

Section: Factors Influencing the Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Laser Doppler flowmetry in endodontics: a review

Jafarzadeh

2009

Int Endodontic J

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Vascular supply is the most accurate marker of pulp vitality. Tests for assessing vascular supply that rely on the passage of light through a tooth have been considered as possible methods for detecting pulp vitality. Laser Doppler flowmetry (LDF), which is a noninvasive, objective, painless, semi-quantitative method, has been shown to be reliable for measuring pulpal blood flow. The relevant literature on LDF in the context of endodontics up to March 2008 was reviewed using PubMed and MEDLINE database searches. This search identified papers published between June 1983 and March 2008. Laser light is transmitted to the pulp by means of a fibre optic probe. Scattered light from moving red blood cells will be frequency-shifted whilst that from the static tissue remains unshifted. The reflected light, composed of Doppler-shifted and unshifted light, is returned by afferent fibres and a signal is produced. This technique has been successfully employed for estimating pulpal vitality in adults and children, differential diagnosis of apical radiolucencies (on the basis of pulp vitality), examining the reactions to pharmacological agents or electrical and thermal stimulation, and monitoring of pulpal responses to orthodontic procedures and traumatic injuries. Assessments may be highly susceptible to environmental and technique-related factors. Nonpulpal signals, principally from periodontal blood flow, may contaminate the signal. Because this test produces no noxious stimuli, apprehensive or distressed patients accept it more readily than current methods of pulp vitality assessment. A review of the literature and a discussion of the application of this system in endodontics are presented.

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Scattering of laser light directed onto the labial surface of extracted human upper central incisors

Cited by 22 publications

References 14 publications

Laser Doppler Flowmetry Evaluation of the Microcirculation in Dentistry

Laser Doppler Flowmetry Evaluation of the Microcirculation in Dentistry

An evaluation of the use of tooth temperature to assess human pulp vitality

Laser Doppler flowmetry in endodontics: a review

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