Gingival blood flow measured with a laser Doppler flowmeter

Baab, David A.; Öberg, Peter; Holloway, Greg

doi:10.1111/j.1600-0765.1986.tb01440.x

Cited by 101 publications

(58 citation statements)

References 21 publications

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“…In our study, we found the highest BF in the alveolar mucosa. Baab et al 9 showed that the laser Doppler flow wave pattern differed among free, interdental, and attached gingivae in humans; these findings correspond to those in this study. Baab et al 16 demonstrated that, in response to gingival cooling, patients with localized juvenile periodontitis and rapidly progressive periodontitis had significantly faster BF recovery curves than healthy control subjects.…”

Section: Discussionsupporting

confidence: 93%

“…Both heat and cold produced initial hyperemia, followed by a rapid return toward the baseline. 9 It has been shown experimentally that the average BF velocity through the larger vessels of the gingiva and periodontal ligament is faster than the flow of red blood cells in the dental pulp. 15 In our experiment, mean BF was significantly high (P < 0.01) in alveolar mucosa than in the gingiva.…”

Section: Discussionmentioning

confidence: 99%

“…7 The laser Doppler flowmeter was used to estimate gingival BF. 8,9 The beam from a helium-neon laser was directed at the free gingival margin. The light was scattered by moving blood cells to a depth of 1.0 mm within the tissue.…”

Section: Introductionmentioning

confidence: 99%

“…Laser Doppler flowmetry (LDF) is noninvasive and permits the continuous monitoring of gingival BF in humans. 10 Baab et al 9 characterized BF patterns in free and attached gingivae, interdental gingivae, and alveolar mucosa. The effects of heat, cold, pressure, and occlusal force on BF wave patterns were monitored and were shown to vary by location.…”

Section: Introductionmentioning

confidence: 99%

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Microcirculation of the healthy human gingiva

et al. 2002

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The purpose of this study was to evaluate the microcirculation in healthy human gingiva. Forty-two adult volunteers with clinically healthy gingiva participated. The ages of this research sample ranged from 20 to 30 years. Periodontal conditions were evaluated and assessed by using the qualitative plaque index, gingival index, gingival bleeding index, tooth mobility, and laser Doppler flow-metry (LDF) on 12 maxillary and mandibular anterior teeth. The LDF data were recorded on the facial aspect of the free gingiva, interdental gingiva, attached gingiva, and alveolar mucosa of 12 maxillary and mandibular anterior teeth, utilizing an acrylic stent to stabilize the probe. This technique was then modified to circumvent contamination by saliva and gingival exudate. Blood flow in the maxillary anterior gingiva differed significantly from that in the mandibular anterior gingiva in interdental gingiva, attached gingiva, and alveolar mucosa, at P< 0.01. The maxillary anterior gingiva, at each point on the stent, showed significant differences in the mean LDF, at P< 0.01. For the mandibular anterior gingiva, the difference was significant only in the alveolar mucosa region.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microcirculation of the healthy human gingiva

et al. 2002

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“…LDF emerged more than 30 years ago as a noninvasive and real-time method for perfusion measurements [66]. The LD technique made it possible to demonstrate that blood flow wave patterns differ consistently among gingival tissue types [67,68] and that there are no within-subject differences over time in LDFRs [16].…”

Section: Microcirculation Of the Gingivamentioning

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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Blood flow changes in the tibia during external loading

McDonald

Ford

1993

Journal Orthopaedic Research

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The influence of external load on the blood flow of the rabbit tibia was assessed by laser Doppler flowmetry (LDF). Blood flow readings were obtained from three adolescent and three adult female New Zealand White rabbits whose tibiae previously had been pinned with modified orthopaedic pins. Readings were obtained from the exposed mid-shaft of the tibia of each hind leg before, during, and after loading. The loading was either static or sinusoidal intermittent. The LDF resulted in a reading from the tibia which was consistent with the recordings of blood flow; the traces were similar to the pulsatile nature of pulse pressure recordings. After loading of the tibia, in both the adolescent and adult rabbits the effects were an increase in blood flow, as measured with LDF, on the tensile aspect, and a decrease in flow on the compressive side. These changes were statistically significant (p < 0.01) as measured by a Student t test. This change in flow reached a plateau with change in strain. Furthermore, the changes in flow produced by loading continued as long as the load was applied. A response similar to reactive hyperaemia occurred on the compressive aspect of the tibia; there was an increase of blood flow above the resting level after removal of the static load. The effect of a sinusoidal intermittent load was less than that of a static load, and the differences in flow between tensile and compressive aspects was not significant. The changes induced offer further insight into factors controlling bone remodelling.

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Gingival blood flow measured with a laser Doppler flowmeter

Cited by 101 publications

References 21 publications

Microcirculation of the healthy human gingiva

Microcirculation of the healthy human gingiva

Laser Doppler Flowmetry Evaluation of the Microcirculation in Dentistry

Blood flow changes in the tibia during external loading

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