To brush teeth with toothpaste, rinse, and then, depending on the condition of the periodontium, it is advisable to use interdental brushes to clean the gaps between the teeth well, since a regular toothbrush will not clean everything out. These brushes come in different sizes, and only a doctor will help determine which one you need. If the gaps between the teeth are small, it is better to use floss.
Many people use ordinary threads, but this is strictly forbidden, since they are of different thicknesses and are not clean enough for the oral cavity. And the flosses are chosen so that the thread ideally penetrates into the holes between the teeth. There are still deodorizing threads that not only scrub, but also give the oral cavity a pleasant smell.