Nanosecond Pulsed Plasma Dental Probe

Abstract

A novel coaxial tubular device capable of generating a 2.5 cm long pencil-like plasma plume in ambient atmosphere has recently been developed to disinfect root canal systems during endodontic treatment. Powered with short (%100 ns), intense (6 kV) electric pulses at 1 kHz, the plasma dental probe is safe for operation, electromagnetic noisefree, with low power consumption (an average power of %1 W) and minimal heating of materials under treatment. It thus has the essential features required for oral and dental disinfection. In this communication, we present the design of the device and evidence that the plasma dental probe is effective for tooth surface disinfection. Scanning electron microscopy shows complete destruction of endodontic biofilms for a depth of 1 mm inside a root canal after plasma treatment for 5 min. Plasma emission spectroscopy identifies atomic oxygen as one of the likely active agents for the bactericidal effect.

Atmospheric Pressure Plasma Jet for Medical Therapy: Plasma Parameters and Risk Estimation

“…Other fields are tissue engineering, treatment of skin diseases, or tumor treatment based on specific induction of apoptotic processes. Several particular plasma applications in medicine as well as first clinical studies are focussed mainly on wound antiseptics and wound healing, skin diseases, and dental applications [11,[12][13][14][15]. Because these first practical applications have been interpreted to be very promising, a rapid grow of this new field plasma medicine has to be anticipated during the next time including the requirement of adjusted plasma sources for different applications.…”

Inactivation of Candida albicans Biofilms on Polymethyl Methacrylate and Enhancement of the Drug Susceptibility by Cold Ar/O2 Plasma Jet

“…Its dental applications, including oral microorganism inactivation [7][8][9][10][11][12][13][14], tooth whitening [15][16][17][18][19], dental material modification [20][21][22] and oral cancer treatment [23] have been reported. Its efficacy in inactivating microorganisms reminds us of its potential application in dealing with oral inflammatory process.…”

Inactivation of Aspergillus flavus spores in a sealed package by cold plasma streamers

“…Limitations in conventional sterilization methods have motivated the search for novel sterilization methods. In recent years, plasmas have various promising applications such as treatment of mammalian and cancerous cells [16], sterilization [8], bacteria inactivation [25], surface modification of Raw and Frit glazes [11], silicon rubber surface modification [26], protein destruction [6] blood coagulations [17], treatment of living tissue [7], wound care [21], teeth bleaching [19], and treatment of dental diseases [15].…”