Final answer:
At least two members of the assistant staff should be present during the administration of nitrous/oxygen inhalation sedation.
Step-by-step explanation:
The statement about requiring at least two members of the assistant staff present during the administration of nitrous/oxygen inhalation sedation is true.
During the administration of sedation, the dentist typically serves as the primary provider, while the assistant staff members play a crucial role in ensuring the safety and comfort of the patient.
The presence of additional staff members allows for better monitoring and assistance during the sedation process, reducing the risk and ensuring a smooth procedure.