Each of these have potential advantages based on your specific needs. CrossAction is a good general clean option whilst the FlossAction is advantageous if you particularly suffer with plaque build up in between teeth. The ‘Oral-B Teen’ is really just a rebadged adult electric toothbrush and includes a brush head designed for braces. The brush head is circular in shape, and there are clusters of bristles that are different lengths. When looked at side on you can see how the bristles essentially cup around the tooth. This feature protects your gums by signalling you if you're brushing too hard. The 360° pressure sensor turns red and automatically slows brush speed. The PRO 3, on top of the Daily clean and Sensitive modes, comes with a specialized whitening clean mode.

It is this fade in colour that acts as a guide to tell you to change brush heads. Bristle Condition To the outer left and right of this polishing cup are 3 clusters of bristles that form the outer ring of the brush head if you like. These are rich blue colour and are the shortest bristles on the head. Up close you can see how the tuft of bristles in the middle of the outer bristle tuft is actually slightly taller/longer to achieve this. Oral-B have introduced a range of brush head styles with what they refer to as ‘cleanmaximiser bristles’.

It removes up to 100% more plaque than a standard manual toothbrush for healthier gums and it starts making your smile whiter as of the first day of brushing by removing surface stains. Not only this, but the toothbrush helps you protect your delicate gums with the 360 ̊gum pressure control technology that reduces brushing speed and alerts you to be gentler if you brush too hard. Not strictly a brush head, this is a special type of attachment designed for Oral-B’s range of water flossing units, OxyJet and Aquacare. Essentially they do the same job as regular indicator bristles, but they have been reworked to be a little more obvious in daily use. The small round brush head has contouring to the bristles to help adapt to the curvature of the tooth and gumline for a deep and thorough clean. Whilst it happily cleans the teeth well, for me the clean is not as invigorating as the CrossAction or the Precision clean brush heads.

Oral-B make many claims about the efficiency of plaque removal and how well each head cleans in combination with their brush handles. I am not here to judge or make comment specifically on how well they remove plaque, this is not a scientific test. A brush head comprising of 4000 individual filaments for a gentle, but effective cleaning experience. There are 2 cleaning modes on the 2500. Daily clean and sensitive. The Sensitive mode might be slightly better to start with. Once used to the brush they can use the more powerful daily clean mode if they like.

At the very top of the brush head are a 3 clusters of light blue bristles. You have one cluster in the top centre with a cluster below and slightly to one side of that. There is then the final outer ring of bristles. 16 clusters all of which are angled at 16 degrees. There are shorter white bristles and then taller light lue bristles. It is possible to share a toothbrush handle with another user, providing each user has their own brush head.