So, which is the better option? Unfortunately, it isn't possible to say floss is better than interdental brushes (or vice versa). Each interdental cleaning tool has its own advantages and disadvantages. A choice must be made depending on your needs. Here are the main factors you should consider before making a choice:

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Direct the floss between openings between teeth using your index fingers and thumbs. Make sure not to force the floss between your teeth but instead use an up and down motion to gently guide the floss between teeth. If you find it difficult to use interdental brushes, get advice from your dentist or dental hygienist. The brush heads also have specialized tips that actually fade with use. This feature allows you to know when to replace the heads because one look and you’ll see how far into their life you’ve gone and how much time you have left with them. This is managed with the special indicator bristles that can be found at the very tip of these brushes.Floss and interdental brushes both have their advantages and disadvantages. We recommend using interdental brushes where applicable as they are more effective and easier to use. For any gaps an interdental brush can't reach, use floss. This way, you get the effectiveness of interdental brushes and the flexibility of traditional floss.

Pro Care Interspace Brush | Toiletries | Superdrug

Choose an interdental brush size to start with. We recommend you start with the biggest size interdental brush and use smaller sizes where necessary.

use a brush appropriate for the size of the space between your teeth – you may need to use more than one size These brush heads have been proven to be 25% more effective at cleaning plaque than normal toothbrushes. They are also manufactured in such a way that they are able to reach those tiny, hard to reach places that are normally not accessible with a normal brush. That makes them superior at cleaning between gaps and small areas giving you a more potent brushing experience. Ease of Use - Although floss can get into smaller gaps, interdental brushes are easier to use. This is especially true for people with braces or limited finger dexterity. When you first start using interdental brushes, your gums may be tender and bleed a little as you start to get rid of any plaque build-up. Carry on using the brushes, and the bleeding should reduce as your gums become healthier.