Which statement is true about hydrotherapy (Water Jet)?

The statement that hydrotherapy, or water jet therapy, is effective at removing debris is accurate because this method utilizes a stream of pulsating water to dislodge food particles and other unwanted substances from the surface of the teeth and gum line. This action can help maintain oral hygiene by flushing out debris that manual brushing might miss, making it a useful adjunct tool in dental care.

However, while water jets can be effective in removing debris, they may not be as efficient at removing established dental plaque or pellicle layers as other cleaning methods, such as brushing or using dental instruments in a professional setting. Additionally, the effects of water jets on gingival tissues can vary, and they may not be completely harmless in all scenarios. Therefore, considering their specific benefits primarily as a means of debris removal aligns with the correct choice.