Tools of the trade: Bulk EZ


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dual-cured composite resin

by Dr Haddon Suttner, Bondi Dental, NSW

Bulk EZ is a dual-cured composite resin. At first, I was hesitant to use it because previous generations of chemically cured composites changed colour. They all looked good initially but a few years later they would turn brown or yellow. I didn’t have faith that Bulk EZ was colour-safe so I only placed it in unobtrusive places. I’m happy to say I was wrong. I’ve been using it now for over four years and the colour is very stable.

What’s good about it

All composites contract at least one to two per cent when they’re cured. Some of the bulk fill composites contract even more. This contraction allows bacteria to enter and that’s why posterior composites don’t last as long as amalgams or crowns. However, if you wait 90 seconds for Bulk EZ to chemically cure and then do a light cure, there’s no polymerisation contraction. This means there’s no leakage of posterior composites. 

Bulk EZ has good cosmetic qualities. It has nice translucency, so I’m happy to use it for anything in the posterior. It’s as strong as other composites and fine to use in large fillings and in very large class twos on back molars.

It handles like all other flowable composites. I pour it in and let it partly set. I then add some characterisation before it gets too hard. I’ve been consistently using this product for four years and I’m very happy with it.

What’s not so good

Even though it comes with different size tips, it doesn’t have a very narrow tip. It would be great if I was able to core root canals. If I could pour it into the orifices of root canals to provide a good non-contracting mono block, that would be amazing. 

Where did you get it


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