19 May

Successful dental practices require the best dental suction unit and compressed air systems, these are key to ensuring that your surgery runs smoothly on a day to day basis and gives you the dentist peace of mind when using the equipment. There are two main areas of dentistry, conservation and surgical, each of these areas is described below.

Conservation Dentistry is specific to the protection of the teeth, it is therefore important to achieve high air flow and medium vacuum as this will keep the patients tooth cool and will control the spray from the tip. 

Air Flow: Extraoral Dental Suction systems require a minimum of 250 litres of air per minute at a 16mm plus or minus 1mm aspirator tip with a maximum vacuum of no more than 250mbar. Compressor systems require a minimum of 50 litres/min at 5bar. All Cattani suction and compressed air units comply with this standard. 

Surgical Applications is specific to treating diseases, injuries and defects of the mouth, jaws, hard and soft tissue, it is therefore important to achieve low/medium air flow and high vacuum as this will remove any blood and debris from a precise area in the patient’s mouth, this ensures the comfort of the patient and keeps the surgeons vision clear during surgery.

Negative pressure (vacuum pulling power): The negative pressure required depends on the size of tip, the smaller the tip the higher the negative pressure required. Generally, 150mbar is accepted as good vacuum for fixed speed suction systems, the standard states a maximum of 250mbar.


Pipework should be MUPVC type not ABS. Swept bends and ‘T’ connections with a fall from the surgery to the pump will ensure water will not collect in the suction pipework.If required your current system can be tested using vacuum gauges to discover the current performance of your system, air flow and suction power.

Just because the unit looks great from the outside does not mean that it works great on the inside, clever features to look out for are digital displays and clever programming which can make your equipment easy to use and service.

Do you know how dangerous aerosols in your dental practice?

Dental care professionals are dangerous exposed to aerosols


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