Manual vs electric brush

When choosing a toothbrush, many wonder if plain manuals are better or would it still be a good idea to invest a little more money in an electric brush?
Manual brushes are great for people who have a good brushing technique or need to pay attention to certain areas in the oral cavity (procedures and wounds that heal in the mouth, recessions).
The advantage is a large selection and low price. In this range, I always recommend soft brushes with as many bristles and a small head.
The disadvantages are inefficiency in incorrect technique and lack of settings for different user needs.
The correct technique for brushing teeth with a manual brush is the Bass technique. The brush is tilted at 45º in relation to the gums, and with circular movements the tooth is brushed and the gums are massaged. It is very important to brush at the border of the gums and teeth in order to remove plaque and prevent the occurrence of caries and periodontitis.
Electric brushes, on the other hand, are created for people who are not so skilled manually (children, the elderly). The brush does most of the work although you still need to know how to use it in certain areas.
The advantages of the electric brush are efficiency, the possibility of replacing the extensions and better cleaning of the interdental spaces. Of the electric brushes, I recommend sonic brushes that have a mechanism of operation most similar to ordinary brushing.
The biggest drawback is the high price of both the body and the extensions. It is an investment, but once it is done, everyone realizes that it is immeasurably better at cleaning teeth and that a slightly higher price still pays off.
The correct technique of brushing your teeth with an electric toothbrush is quite simple. You don't have to make any movement with your hand, just move the brush from one tooth to another. If you brush with an electric brush as if it were manual, you reduce its effect.