Are you using the best Instrument Disinfectant? Practice owners highlight the benefits of Kemdent’s InstrumentSafe Disinfectant

Some existing users highlight the benefits of Kemdent’s InstrumentSafe Disinfectant

The Department of Health’s Decontamination Health Technical Memorandum 01-05: Decontamination in primary care dental practices describes the essential steps required for the safe and effective sterilisation of dental instruments. This includes the use of either a washer-disinfector, manual cleaning combined with ultrasonic cleaning or manual cleaning only. It stresses the importance of effective cleaning of instruments as an essential prerequisite before sterilisation because it will reduce the risk of transmission of infectious agents.

Within the Best Practice framework the use of either an ultrasonic cleaner or washer-disinfector is recommended in preference to manual cleaning only, unless the manufacturer specifies that the device is not compatible with automated processes.

Instruments should be cleaned as soon as possible after use because they may be more easily cleaned than those left for a number of hours before reprocessing. Where this is not possible, water immersion or the use of a foam or gel intended to maintain a moist or humid environment are thought useful in aiding subsequent decontamination.


Supplied in a concentrated form, InstrumentSafe has been specifically designed to meet the requirements of HTM 01-05 and all the other relevant regulations and standards regarding the disinfection of instruments prior to autoclaving within the Practice environment.

Adehyde and Phenol-free, InstrumentSafe is recommended for the disinfection and cleaning of dental instruments including rotary instruments prior to autoclaving. It can be used with both thermo-labile and thermo-stable instruments.

The active ingredients in InstrumentSafe are N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine plus surfactants which are biodegradable according to the Detergent Regulations. Consequently it is an effective bactericide (including MRSA), tuberculocide, fungicide, and effective against enveloped viruses such as Vaccinia, BVDV, HBV, HIV, HCV according to RKI recommendations.

Depending upon the concentration used (1% or 2%), according to the new DGHM/VAH Guidelines the exposure time at high soil load (including TB, MRSA and enveloped viruses) for InstrumentSafe is 1% - 60 minutes, 2% - 30 minutes and in an Ultrasonic bath 1% for 5 minutes.

InstrumentSafe is supplied in a concentrated liquid presentation which is easily diluted in water to produce different concentration working solutions, which should be changed daily or when it has become visibly contaminated. 10ml makes 1 litre of 1% solution and 20ml makes 1 litre of 2% solution,



10 ml

20 ml

1 litre*

20 ml

40 ml

2 litre*

40 ml

80 ml

4 litre*

80 ml

160 ml

8 litre*

100 ml

200 ml

10 litre*

*Total amount of working solution

Table 1- Volume of InstrumentSafe (in mls) required to make various total volumes (in litres) of appropriate concentration working solution (in %).

Following the instructions for use is extremely important

In order to obtain optimum results from this product it is essential to follow the manufacturer’s instructions correctly.

When planning to use InstrumentSafe for the short-term disinfection and simultaneous cleaning of dental instruments and rotary instruments for the first time it is recommended to clean all the instruments and instrument baths thoroughly with water to remove chemical residue (aldehydes) that might be present first.

To produce the desired percentage of working solution use the refillable dosage bottle. To achieve this easily and accurately the cap of the dosage bottle is opened by half a turn. The body of the bottle is then squeezed until the required amount of concentrated InstrumentSafe fills the dosage chamber. InstrumentSafe is then poured out into an ultrasonic bath containing the appropriate amount of water to create the desired total volume of the desired percentage concentration of InstrumentSafe. For example if 1 litre of 1% working solution is required then 10 ml of InstrumentSafe should be added to 990 ml of water, see Table 1 for further details. Always add the concentrate to the water and ensure it is mixed well. Avoid excess foaming.

Once empty the dosage bottle can be refilled from either a 5 litre or 10 litre refill bottle.

The instruments should then be completely immersed in the disinfectant solution for the appropriate amount of time. For example, 60 minutes if a 1% InstrumentSafe working solution is being used.

For optimum results the manufacturers recommend using InstrumentSafe in an ultrasonic bath to disinfect the instruments.

Then, whichever protocol is used, all the instruments must be rinsed with lukewarm water after the disinfection process prior to autoclaving in the desired manner.

The manufacturers recommend that the InstrumentSafe solution is changed daily or when the solution is visibly contaminated.

Some Practices prefer to make up a larger quantity of InstrumentSafe in advance and simply dispense it as and when required. This is a perfectly satisfactory thing to do.

Feedback from existing users

This is what some Practices who have already swapped to InstrumentSafe Soak had to say:-

Quote from Alex Harvey, Johnstown Dental Practice, Wrexham: “We first started using InstrumentSafe in 2012. Prior to that we used Gigasept, but we didn’t like it because it didn’t kill as many viruses as InstrumentSafe and there was a lack of support information available. It was also more expensive.

We use a 2% InstrumentSafe solution because it’s stronger and therefore theoretically even more effective. We use it in an ultrasonic bath to disinfect and clean all of our instruments. We always use an ultrasonic bath because it helps to debride the instruments, but we’d be happy to use it as an instrument soak, if left for an appropriate time, if there wasn’t an ultrasonic bath available. However, in this situation we’d manually scrub the instruments first.

We produce a fresh batch of InstrumentSafe every time we need one and change it either at the beginning of each session or when it is visibly contaminated.

We find the dosing bottle very easy to use.”

Quote from Jon Stark, Baddow Road Dental Surgery, Chelmsford: “We switched to InstrumentSafe from I-Dis 212 about 18 months ago. We use it to disinfect and clean all our instruments daily. We fill a sink to the level marked on the side with water and add enough InstrumentSafe to make up 5 litres of 2% solution. We do this daily. We find the fragrance pleasant and not overpowering.”

Jenny Murphy, The Surgery, Stratford-upon-Avon: “We’ve been using InstrumentSafe since 2015. Before that we used to use Alkacide, but it was very expensive. We use it as a disinfectant for a wide range of things including glass slabs, dappen pots, plastic cheek retractors - items that cannot be sterilized in an autoclave.

After the items have been scrubbed with a dilute solution of Prolystica they are immersed in a bath of 2% InstrumentSafe for 30 minutes.

We make up a fresh quantity of solution every day because we wouldn’t want to store a large amount of liquid because we only have a limited amount of storage. We like the smell of InstrumentSafe because it smells fresh and like a cleaning product should smell.

We like the colour too because it looks clinical and you can see that it’s there, if it was clear you wouldn’t be able to see it and tell if it was there. We like the dosage bottle because the dosage chamber is easy to see and use.

We won’t be changing to any other product.”


When using InstrumentSafe, as recommended by the manufacturer, it delivers a reliable, effective and extremely economical means of disinfecting instruments that helps protect the Practice Staff and patients from the risk of cross infection.

For further information on Instrument Safe please contact Kemdent on 01793 770256 or visit


Posted on 17.09.19