Is it permissible for a woman to have orthodontic treatment done by a male dentist if she is accompanied by a nurse and the price is significantly lower than that of a female dentist?

"Previous advice has been given regarding the ruling on orthodontic treatment. In cases where it is permissible, it is not permissible for a woman to be treated by anyone other than another woman. The mere presence of a nurse does not negate khalwa (private seclusion) unless she is a trustworthy and reliable person, and the presence of the husband or a mahram is more preferable."