Aerosols How Dangerous They Are in Clinical Practice

Abstract

Background and Objectives: The purpose of the present study was to determine the microbial atmospheric contamination during initial periodontal treatment using a modern piezoelectric scaler and to evaluate the efficacy of two commercially available mouth rinses (0.2% Chlorhexidine mouth rinse and Listerine) in reducing bacterial contamination when used as a pre-procedural rinse, with and without high volume evacuation (Aerosol reduction device).

The Difference of Bacterial Aerosol Quantity Based on Blood Agar Plate Position

“…In group II, the mean of bacterial aerosol quantity was P-I (232.81) > P-II (5.06) > P-III (4.63). This result is maybe related to the several factors which influence aerosol distribution as stated by Bentley et al 11 : type of procedure and whether high volume evacuation was used; the position of the tooth in the mouth, which affects the position of the operator relative to the subject in the dental chair; and the level of microorganisms in the subject's mouth.…”

“…Aerosol contains microorganisms from oral cavity when highpowered and high-speed instrument is used. 11 The oral cavity is a unique environment which provides an ideal medium for microbial growth. 18 King et al 9 also stated that the oral cavity provides a unique ecosystem of moist environment, temperature, and the existence of endogenous and exogenous metabolic substrates, which make it an ideal medium for bacterial growth.…”

“…5,6,7,8,9 Therefore, the dentists are often exposed to microorganisms that harmful to the health. 10 Mikitka et al 11 said that there is some evidence for greater prevalence of respiratory disease. This is caused by the bacterial aerosol remains in the air for long period before being inhaled by dentists or patients.…”

“…This is caused by the bacterial aerosol remains in the air for long period before being inhaled by dentists or patients. 11 The aerosolized bacteria can be inhaled into the lung of a susceptible person. 12 Aerosol is solid or liquid particles in the air with less than 50 µm in diameter.…”

“…Aerosol contains many microorganisms derived from blood, saliva, debris, dental plaque, calculus, and restorative materials produced by ultrasonic scaler when used with water spray. 5,6,7,11,14 Each of the patients has different aerosol composition depends on the teeth condition in the operative area and the level of microorganisms in patients' oral cavity. 6,13 The use of pre-procedural mouthwash before ultrasonic scaling treatment is one of some methods to reduce aerosol contamination.…”