As a standard Reach toothbrush usually is not suited for this type of use, there are a lot of considerations that you need to make.
First, you need to consider whether or not the brush has a grip that you and your loved one can easily handle. The perfect handle has a soft grip that is large enough to be held onto easily, while not having a great deal of weight to serve as a stumbling block.
Handicap toothbrushes must also have a head that is easily directed and moved. A modular toothbrush is perfect for this, as the bristles on the head are moved by the electric toothbrush, which only gives the individual using it the task of holding the handle so the head works to clean the teeth. This helps make the task of brushing far easier for them to handle without adding extra issues. As it is a modular toothbrush, you or your loved one will be able to use the same brush handle for years to come, which adds an extra degree of familiarity.
Despite the ease of use associated with a modular toothbrush, you or your loved one should be taught carefully how to make the best use of the new handicap toothbrushes. As electric toothbrushes are very different from non-motorized brushes, this takes a bit of adjustment. As long as you or your loved one have someone to help you make the change, this type of brush can be highly beneficial and allow you to maintain good dental hygiene and have a beautiful smile.