What does oral hygiene aim to maintain in unconscious patients?

Maintaining oral hygiene in unconscious patients is primarily focused on preserving dental health. This is essential because unconscious patients may not be able to perform regular oral care themselves, leading to an increased risk of dental issues such as plaque buildup, gingivitis, and tooth decay. Proper oral hygiene helps prevent infections, promotes overall health, and can even improve comfort for the patient.

In terms of the other options, while skin moisture is important for preventing skin breakdown, it is not the primary focus of oral hygiene. Heart rate balance and muscle strength are also important aspects of patient care but are unrelated to the specific goals of oral hygiene practices. Therefore, the emphasis is on dental health as it directly correlates with maintaining the integrity and cleanliness of the mouth in patients who are unable to care for themselves.