Final answer:
Gloves are essential during dental cleanings to prevent the spread of microbes and protect against infection and exposure to bodily fluids. They provide a barrier that safeguards both the healthcare provider and the patient.
Step-by-step explanation:
Gloves should be worn during a dental cleaning to prevent the transmission of microbes and protect both the dental healthcare provider and the patient. The mouth supports a large microbial community, including potentially harmful bacteria that can lead to dental caries and infections that may spread throughout the body. Gloves act as a barrier to these microbes, minimizing the risks of cross-contamination and infection. Additionally, they protect against exposure to bodily fluids and the mechanical erosion caused by dental abrasives.