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- Title
Effect of defocused infrared diode laser on salivary flow rate and some salivary parameters of rats.
- Authors
Simões, Alyne; Nicolau, José; De Souza, Douglas Nesadal; Ferreira, Leila Soares; De Paula Eduardo, Carlos; Apel, Christian; Gutknecht, Norbert
- Abstract
This study aims to investigate whether infrared diode low-level laser therapy (LLLT) increased salivary flow rate and altered pH value, protein concentration, and peroxidase and amylase activities in saliva of rats. Wistar rats were used and divided into three groups. Experimental groups (A and B) had their parotid, submandibular and sublingual glands submitted to diode laser, 808-nm wavelength, on two consecutive days. The dose results were 4 and 8 J/cm2, respectively. A red guide light was used to visualize the irradiated area. Group C was irradiated only with red pilot beam and served as control. The saliva samples were collected after each irradiation step (first and second collection days) and 1 week after the first irradiation (seventh day). Statistical analysis was performed, and differences were observed according to different days of salivary collection. The results showed that salivary flow rate for groups A and B was higher on the seventh day if it is compared to data obtained for the first day ( p < 0.05). LLLT applications on salivary glands are a therapy procedure that requires further studies.
- Subjects
SALIVA; MEDICAL lasers; LABORATORY rats; HYDROGEN-ion concentration; PROTEINS
- Publication
Clinical Oral Investigations, 2008, Vol 12, p25
- ISSN
1432-6981
- Publication type
Article
- DOI
10.1007/s00784-007-0135-y