The effect of wavelength, bandwidth, and probe design and position on assessing the vitality of anterior teeth with laser Doppler flowmetry

Roebuck, Elizabeth M; Evans, Dafydd; Stirrups, D. R.; Strang, Robert H. W.

doi:10.1046/j.1365-263x.2000.00194.x

Cited by 31 publications

(58 citation statements)

References 16 publications

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“…Admitting the measured flow, ( F ), to be composed by fractions of flow from pulpal ( P ) and nonpulpal ( NP ) regions, then the measured flow can be expressed as F = P + NP [27]. Similarly, consider that the nonpulpal fraction is formed by the gingival and other periodontal fractions, NP = G + Pe , where G and Pe are the gingival and (other) periodontal fractions.…”

Section: Discussionmentioning

confidence: 99%

Laser Doppler Blood-Flow Signals from Human Teeth during an Alignment and Leveling Movement Using a Superelastic Archwire

Salles

Nogueira

2013

ISRN Dentistry

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Objective. The purpose of this study was to examine alterations in blood-flow signals (BFS) from human teeth during an alignment and leveling phase (superelastic wire 0.014′′) in a clinical orthodontic treatment using laser doppler flowmetry (LDF). Materials and Methods. Recordings were made in 12 maxillary left central incisors. The basal value of the BFS from each tooth (without orthodontic forces) was compared with the corresponding values of BFS during four periods of observation: 20 minutes, 48 hours, 72 hours, and one month after the activation of the orthodontic appliance. Results. Statistically significant decrease of BFS was observed at 20 minutes, 48 hours, and 72 hours (P < 0.05). No differences were found comparing BFS on day 30 and the corresponding basal values. Conclusion. Under real clinical conditions, a significant decrease in BFS was verified during the initial phase of the treatment, followed by a recovery on day 30.

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Section: Discussionmentioning

confidence: 99%

Laser Doppler Blood-Flow Signals from Human Teeth during an Alignment and Leveling Movement Using a Superelastic Archwire

Salles

Nogueira

2013

ISRN Dentistry

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“…Also, root-filled teeth were not used as negative controls for flux value. Optical property changes of tooth structure in teeth that have undergone root canal treatment have been implicated (25,31) as being responsible for possible anomalies in flux readings.…”

Section: Discussionmentioning

confidence: 99%

“…This was based largely on empirical observations made from 2 previous studies (23,25) that had only 33 subjects and slightly differing testing parameters. Further studies need to be done to validate this methodology.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of Accuracy, Reliability, and Repeatability of Five Dental Pulp Tests

Chen¹,

Abbott²

2011

Journal of Endodontics

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“…It has been shown that the light from a LDF probe placed at 2 mm above the buccal cement-enamel junction is transmitted apically towards the radicular pulp [41]. There are several studies that have reported the placement of the LDF probe at 1-1.5 [43], 2 [44], 2-3 [45,46], ~3 [47] and 4-5 mm [48] coronal to the gingival margin. In our studies, the probe was placed on the cervical third of the tooth, at 3 mm away from the gingival margin (Figure 1).…”

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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The effect of wavelength, bandwidth, and probe design and position on assessing the vitality of anterior teeth with laser Doppler flowmetry

Abstract: It was concluded, therefore, that laser Doppler flowmetry can be of use in assessing the vitality of anterior teeth and that this is the preferred combination of recording variables for further investigations.

Cited by 31 publications

References 16 publications

Laser Doppler Blood-Flow Signals from Human Teeth during an Alignment and Leveling Movement Using a Superelastic Archwire

Laser Doppler Blood-Flow Signals from Human Teeth during an Alignment and Leveling Movement Using a Superelastic Archwire

Evaluation of Accuracy, Reliability, and Repeatability of Five Dental Pulp Tests

Laser Doppler Flowmetry Evaluation of the Microcirculation in Dentistry

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