Contamination of dental unit water and air outlets following use of clean head system and conventional handpieces. | Zendy

Lida Toomarian | Zendy; Sahand Rikhtegaran | Zendy; Mehrnoosh Sadighi | Zendy; Siavash Savadi Oskoee | Zendy; Parnian Alizadeh Oskoee | Zendy

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Contamination of dental unit water and air outlets following use of clean head system and conventional handpieces.

Author(s) -

Lida Toomarian,

Sahand Rikhtegaran,

Mehrnoosh Sadighi,

Siavash Savadi Oskoee,

Parnian Alizadeh Oskoee

Publication year - 2007

Publication title -

pubmed

Language(s) - English

Resource type - Journals

ISSN - 2008-210X

DOI - 10.5681/joddd.2007.007

Subject(s) - dental equipment , contamination , sterilization (economics) , dentistry , clean water , environmental science , dental instruments , pulp and paper industry , medicine , waste management , engineering , ecology , monetary economics , economics , foreign exchange market , biology , foreign exchange

Dental handpiece is a source of contamination because it is in constant touch with the oral cavity. Sterilization does not seem to be sufficient to prevent penetration of microorganisms into air and water lines of the unit, because negative pressure developed by valves (which are placed in water outlets) and post shut-off inertial rotation of handpiece result in water and debris being sucked into air and water outlets of dental unit. The aim of this study was to compare dental unit contamination following use of clean head system handpieces and conventional handpieces.

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