PMID: 9550036Apr 1, 1997Paper

Possible application of transmitted laser light for the assessment of human pulpal vitality

Endodontics & Dental Traumatology
Takashi SasanoT Miyahara

Abstract

The purpose of this study was to determine whether use of transmitted laser light would enable a better assessment of human pulpal vitality than back-scattered light does (LDF: laser Doppler flowmetry). The experiments were carried out on ten upper central incisors in six subjects aged 23-28 years; five of the teeth were vital with no restoration, and five were non-vital. For use with transmitted laser light, the fibers within the probe of a conventional LDF apparatus were used, one for transmitting light onto the buccal surface, the other for receiving it at the palatal surface of the same tooth. For LDF, the probe was fixed at the buccal surface. Blood flow was measured at three different locations on each experimental tooth: the incisal third, the center and the cervical third of the tooth crown. In non-vital teeth, 1) output signals with transmitted laser light all registered zero, and no oscillation could be seen in recordings from any location on the tooth, but 2) LDF signals were above zero, there were regular oscillations related to heart rate, and passive increases in blood flow (corresponding to blood pressure increases) were recorded from both the center and the cervical third of the tooth, indicating that LDF regist...Continue Reading

References

Jul 1, 1992·Journal of Periodontal Research·T SasanoK Karita
Oct 1, 1986·Endodontics & Dental Traumatology·B GazeliusL Edwall
Sep 1, 1988·International Endodontic Journal·L OlgartU Lindh-Strömberg
Dec 1, 1988·Endodontics & Dental Traumatology·B GazeliusB Edwall
Apr 1, 1994·Endodontics & Dental Traumatology·A R IngólfssonC E Riva
Jan 1, 1993·International Endodontic Journal·B Matthews, N Vongsavan

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Citations

Feb 5, 2002·Archives of Oral Biology·T SasanoK Karita
Dec 25, 2003·Archives of Oral Biology·Serkan PolatN Tülin Polat
Aug 19, 2007·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Yuichi KonnoTakashi Sasano
Jun 11, 2004·International Endodontic Journal·R EmshoffH Strobl
Nov 24, 2012·International Endodontic Journal·F C SetzerM Trope
Jan 1, 2009·International Journal of Dentistry·Eugene Chen, Paul V Abbott
Apr 2, 2004·Journal of Endodontics·Kerem Engin AkpinarNilüfer Tülin Polat
Jan 22, 2005·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Takashi SasanoTakaaki Miyahara

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