2016, Number 5
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ABSTRACTThe Doppler effect, the scientific basis of laser Doppler flowmetry, was first described in 1842 by Austrian physicist Christian Doppler in his treatise Über das farbige Licht der doppelsterne und einige andere gestirne des Himmels (On the Colored Light of the Binary Stars and Some Other Stars of the Heavens). This principle has led to the development of techniques and devices that have been used in the field of medicine to measure perfusion in various organs and tissues, and have provided a useful method of diagnosis. In dentistry, information on the use of this method in the various structures of the mouth has slowly begun to be published. As a result, the need for its continued use in the field of oral health has become evident, given that it has proven to be non-invasive and extremely useful in diagnosis. It is a diagnostic technique that is commonly used in healthcare and has been widely developed in the field of medicine, yet there have been few reported studies of its use in dentistry, which is an important step towards opening new lines of research based on this new technology for the benefit of patients.
Wilder-Smith PE. A new method for the noninvasive measurement of pulpal blood flow. Int Endod J. 1988; 21: 307-312.
Bonner RF, Clem TR, Bowen PD. Laser-Doppler continuous real-time monitor of pulsatile and mean blood flow in tissue microcirculation. In: Chen SH, Chu B, Nossal R. Scattering techniques applied to supramolecular and nonequilibrium systems. New York: Plenum; 1992. pp. 685-702.
Firestone AR, Wheatley AM, Thüer UW. Measurement of blood perfusion in the dental pulp with laser Doppler flowmetry. Int J Microcirc Clin Exp. 1997; 17 (6): 298-304.
Stern MD, Lappe DL, Bowen PD, Chimosky JE, Holloway GA Jr, Keiser HR et al. Continuous measurement of tissue blood flow by laser Doppler spectroscopy. Am J Physiol. 1977; 232 (4): H441-448.
Boutault F, Cadenat H, Hibert PJ. Evaluation of gingival microcirculation by a laser Doppler flowmeter. Preliminary results. J Craniomaxillofac Surg. 1989; 17: 105-109.
Yeh Y, Cummins HZ. Localized fluid flow measurements with an He-Ne laser spectrometer. Appl Phys Lett. 1964; 4: 176-178.
Emshoff R, Emshoff I, Moschen I, Strobl H. Laser Doppler flow measurements of pulpal blood flow and severity of dental injury. Int Endod J. 2004; 37: 463-467.
Roeykens H, Van Maele G, De Moor R et al. Reliability of laser Doppler flowmetry in a 2-probe assessment of pulpal blood flow. Oral Surg Oral Med Oral Path Oral Radiol Endod. 1999; 87: 742-748.
Patiño-Marín N, Martínez F, Loyola-Rodríguez JP et al. A novel procedure for evaluating gingival perfusion status using laser-Doppler flowmetry. J Clin Periodontol. 2005; 32 (3): 231-237.
Rodriguez-Martínez M, Patiño-Marín N, Loyola-Rodríguez JP, Brito-Orta MD. Gingivitis and periodontitis as antagonistic modulators of gingival perfusion. J Periodontol. 2006; 77: 1643-1650.
Emshoff R, Kranewitter R, Norer B. Effect of Le Fort I osteotomy on maxillary tooth-type related pulpal blood-flow characteristics. Oral Surg Oral Med Oral Path Oral Radiol Endod. 2000; 89: 88-90.
Watson AD, Pitt Ford TR, McDonald F. Blood flow changes in the dental pulp during limited exercise measured by laser Doppler flowmetry. Int Endod J. 1992; 25: 82-87.
Odor TM, Ford TR, McDonald F. Effect of probe design and bandwidth on laser Doppler readings from vital and root-filled teeth. Med Eng Phys. 1996; 18: 359-364.
Sato M, Harada K, Okada Y, Omura K. Blood-flow change and recovery of sensibility in the maxillary dental pulp after a single segment Le Fort I osteotomy. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003; 95: 660-664.
Raamat R, Jagomägi K, Kingisepp P. Simultaneous recording of fingertip skin blood flow changes by multiprobe laser Doppler flowmetry and frequency-corrected thermal clearance. Microvasc Res. 2002; 64: 214-219.
Soo-ampon S, Vongsavan N, Soo-ampon M et al. The sources of laser Doppler blood-flow signals recorded from human teeth. Arch Oral Biol. 2003; 48: 353-360.
Chandler NP, Love RM, Sundqvist G. Laser Doppler flowmetry: an aid in differential diagnosis of apical radiolucencies. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1999; 87: 613-616.
Matthews B, Vongsavan N. Advantages and limitations of laser Doppler flow meters. Int Endod J. 1993; 26: 9-10.
De Backer D, Donadello K, Taccone FS, Ospina-Tascon G, Salgado D, Vincent JL. Microcirculatory alterations: potential mechanisms and implications for therapy. Annals of Intensive Care. 2011; 1: 27.
Obeid AN. In vitro comparison of different signal processing algorithms in laser Doppler flowmetry. Med Biol Eng Comp. 1993; 31: 43-52.
Jafarzadeh H, Rosenberg PA. Pulse oximetry: review of a potential aid in endodontic diagnosis. J Endod. 2009; 35: 329-333.
Gopikrishna V, Pradeep G, Venkateshbabu N. Assessment of pulp vitality: a review. Int J Paediatr Dent. 2009; 19: 3-15.
Kimura Y, Wilder-Smith P, Matsumoto K. Lasers in endodontics: a review. Int Endod J. 2000; 33: 173-185.
Kim S, Liu M, Markowitz K et al. Comparison of pulpal blood flow in dog canine teeth determined by the laser Doppler and the 133Xenon washout methods. Arch Oral Biol. 1990; 35 (5): 411-413.
Roeykens H, Van Maele G, Martens L et al. A two-probe laser Doppler flowmetry assessment as an exclusive diagnostic device in a long-term follow-up of traumatised teeth: a case report. Dent Traumatol. 2002; 18: 86-91.
Jafarzadeh H. Laser Doppler flowmetry in endodontics: a review. Int Endod J. 2009; 42: 476-490.
Evans D, Reid J, Strang R et al. A comparison of laser Doppler flowmetry with other methods of assessing the vitality of traumatised anterior teeth. Endod Dent Traumatol. 1999; 15: 284-290.