Tools of the trade: Ronvig Dento-Prep Microblaster


dentoprep_404by Dr Keith Hammond, Annandale Dental, Annandale, NSW

I’ve been using this micro-etcher since 2003 after hearing about it at a lecture. It’s a great tool but quite messy. I use a rubber dam for most of my procedures, so I can clean up with high-speed evacuation and water spray.

What’s good about it

This sandblaster uses 50 micron aluminium oxide. It is invaluable as an adjunct to the acid-etch routine for composite and GIC restorations. I use it to do a final clean to the cavity and to open up the enamel margins or the tubules before acid etching and bonding. It reinforces the bond and also makes other physical retainers, like pins, irrelevant.

It is also a very useful cleaner for cementing cast posts, crowns and bridges, and especially Maryland bridges. I find it essential in preparing class 5 abrasion lesions which can be quickly and effectively prepared, usually without anaesthetic.

It can also be used as a most effective calculus stripper for the back of lower anterior teeth. It is probably advisable to follow this with a fluoride toothpaste because the micro-abrasion is severe.

What’s not so good

It’s very messy. It needs to be carefully handled because the nozzle costs about $80. Water will clog up the micro etcher quite easily so you mustn’t use the water spray until you have finished with the etching device. It also tends to clog up the float chamber of the Tantus unit.

Where did you get it

Erskine Dental.

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