Print this page Email this page Users Online: 641
Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
Year : 2013  |  Volume : 7  |  Issue : 1  |  Page : 17-21

Blood circulation changes in palatal gingiva before and after low-level laser irradiation in rats

1 Department of Periodontology, Istanbul, Bezmialem Vakif University, Faculty of Dentistry, Istanbul, Turkey
2 Department of Veterinary, Istanbul, Bezmialem Vakif University, Faculty of Dentistry, Istanbul, Turkey
3 Department of Prosthodontics, Istanbul, Bezmialem Vakif University, Faculty of Dentistry, Istanbul, Turkey

Correspondence Address:
Seda Ozturan
Department of Periodontology, Faculty of Dentistry, Bezmialem Vakif University, Fatih-34093, Istanbul
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-2868.118427

Rights and Permissions

Introduction: Clinical practice with low-level laser therapy (LLLT) has been investigated; however researchers and therapists have questioned the clinical benefits of laser therapy due to divergent results in the literature. Aim of the study: This research evaluated the effects of laser therapy on blood circulation following application of two diode lasers with different wavelengths with laser Doppler flowmetry (LDF). Materials and Methods: In order to evaluate the effectiveness of LLLT on circulation of blood vessels in palatal gingiva, two diode lasers were applied to the palatal gingiva at 2 mm distance to the two upper incisors of 20 rats. Ten rats were irradiated with a wavelength of 810 nm (10 J/cm 2 , Fotona) while other 10 rats were irradiated with wavelength of 660 nm (10 J/cm 2 , Helbo, Bredent) for 7 consecutive days. Rate of blood circulation in the ascending palatine artery was determined with LDF from the same gingival location before and 1 h after irradiation on each day. Data were analyzed by repeated measurements of analysis of variance (ANOVA). Results: The results indicated that blood circulation was significantly increased after 1 h following irradiation with both diode laser types (P < 0.05) and the increase was similar following each consecutive irradiation for 7 days. Conclusion: The irradiation of the palatal gingiva by LLLT enhanced the local blood circulation; however, the amount of increase was limited and similar to following identical applications on consecutive days.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded310    
    Comments [Add]    

Recommend this journal