The effect of foot-bath with or without the essential oil of lavender on the autonomic nervous system: a randomized trial.
Complement Ther Med. 2000 Mar ;8(1):2-7. PMID: 10812753
Department of Anatomy and Physiology, Nagano College of Nursing, Japan.
OBJECTIVES: This study was designed to investigate the effect of foot-bath with or without the essential oil of lavender on the autonomic nervous system.
DESIGN: Randomized crossover controlled study.
SETTING: Nursing college, Nagano, Japan.
INTERVENTION: Young women sat with their feet soaked in hot water for 10 minutes with and without the essential oil.
OUTCOME MEASURES: An electrocardiogram, finger tip blood flow and respiratory rate were recorded. Autonomic function was evaluated using spectral analysis of heart rate variability.
RESULTS: The foot-bath caused no changes in heart or respiratory rates, but produced a significant increase in blood flow. Using spectral analysis, the parasympathetic nerve activity increased significantly during the both types of foot-bath. In the case of the foot-bath with the addition of essential oil of lavender, there were delayed changes to the balance of autonomic activity in the direction associated with relaxation.
CONCLUSION: A hot foot-bath and oil of lavender appear to be associated with small but significant changes in autonomic activity.
Article Published Date : Mar 01, 2000
Effects of Two Diode Lasers With and Without Photosensitization on Contaminated Implant Surfaces: An Ex Vivo Study.
Photomed Laser Surg. 2017 Jul;35(7):347-356
Authors: Valente NA, Mang T, Hatton M, Mikulski L, Andreana S
OBJECTIVE: The aim of this ex vivo study is to assess decontamination potential of two different diode laser wavelengths, with or without the aid of photodynamic therapy, on dental implant surfaces and to evaluate the harmful potential of temperature increase during laser irradiation.
MATERIALS AND METHODS: One hundred thirty-two machined sterile implants were placed into sterile porcine bone blocks with standardized coronal angular bony defects and inoculated with Streptococcus sanguinis. Four different treatment protocols were used: 810 or 980 nm laser, with or without photosensitization. Two nontreated control groups were used, one with samples coated with indocyanine green dye. Samples were rinsed and plated on agar plates for subsequent colony count. Irradiation was repeated without contamination at room temperature and in a 37°C water bath monitoring the temperature variation.
RESULTS: There is a statistically significant decontamination effect when the laser is used. Both wavelengths minimize contamination. There was modest improvement given by the photosensitization being more marked in the 810 nm groups, but was not statistically significant compared to laser only. A critical temperature increase was never observed when the sample was in a 37°C water bath.
CONCLUSIONS: The use of both diode laser wavelengths in implant surface decontamination was efficacious regardless of the use of photosensitization and without dangerous increase of temperature.
PMID: 28253064 [PubMed - indexed for MEDLINE]