Document Detail

Effectiveness of antimicrobial mouthrinses on aerosols produced by an air polisher.
MedLine Citation:
PMID:  17233164     Owner:  NLM     Status:  MEDLINE    
PURPOSE: The purpose of this examiner-blind investigation was to study the effect of two antimicrobial mouthrinses on the quantity and potential respiratory-penetrating ability of microorganisms generated by an air-abrasive polisher. METHODS: Forty-five adult subjects were randomly assigned to one of three groups and asked to rinse for 30 seconds with 15 ml of either a 0.12% chlorhexidine rinse, an essential oil mouthrinse, or water prior to air polishing. Prior to treatment, microbes in ambient air were collected for five minutes using an Andersen air sampler. This device simulates the human respiratory system and collects airborne microbes by means of blood agar plates stacked in a cascade impact system. Bacteria found at stages two, four, and six--representing the pharynx, bronchi, and alveoli-were collected and counted in this study. During three minutes of air-abrasive instrumentation and two minutes immediately following, airborne microbes were again collected. Agar plates removed from the sampler were incubated for 24 hours at 37 degrees C. Colony-forming units per cubic foot of air (CFUs/ft(3)) were enumerated using a Lab Line colony counter. Data were analyzed using a two-factor repeated measure ANOVA and Dunn's multiple mean comparison techniques. RESULTS: Results showed no significant effect of prerinsing among treatment groups. An increase in CFUs/ft(3) was found at each sequential stage of the air sampler, resulting in a statistically significant within-group effect (p< or =.05). Additionally, a significant interaction was found between prerinse treatment and respiratory stage (p< or =.05) . CONCLUSION: While the air-abrasive polisher produced significant amounts of deeply penetrating bacterial aerosol, differences in CFUs/ft(3) generated following the antimicrobial prerinsing tested are of little clinical significance.
N L Bay; P R Overman; K Krust-Bray; C Cobb; K B Gross
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of dental hygiene : JDH / American Dental Hygienists' Association     Volume:  67     ISSN:  1043-254X     ISO Abbreviation:  J Dent Hyg     Publication Date:    1993 Sep-Oct
Date Detail:
Created Date:  2007-01-19     Completed Date:  2007-02-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8902616     Medline TA:  J Dent Hyg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  312-7     Citation Subset:  D    
School of Dental Hygiene, Dental Branch, University of Texas Health Science Center, Houston, Texas, USA.
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MeSH Terms
Air Microbiology*
Anti-Infective Agents, Local / therapeutic use*
Bronchi / microbiology
Chlorhexidine / therapeutic use
Colony Count, Microbial
Dental Prophylaxis / instrumentation*
Drug Combinations
Mouthwashes / therapeutic use*
Particle Size
Pharynx / microbiology
Pulmonary Alveoli / microbiology
Salicylates / therapeutic use
Single-Blind Method
Terpenes / therapeutic use
Reg. No./Substance:
0/Aerosols; 0/Anti-Infective Agents, Local; 0/Drug Combinations; 0/Mouthwashes; 0/Salicylates; 0/Terpenes; 51273-66-6/Listerine; 55-56-1/Chlorhexidine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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