Doors in dental practises.

[Pointer]

Can anyone tell me for certain or guide me in the right direction as to whether there is a need for lead lined doors to dental consulting rooms where digital x-ray machines are used. Also would fire resisting doors of substantial construction provide the necessary degree of shielding required should a degree of shielding be required.
I am considering normal dental consulting rooms here and not full blown x-ray theatres.

[kurnal]

I have locked this topic as it is duplicated in the Dangerous Substances thread. Please respond there (though it may be better moved to Healthcare- I may move it later depending on responses)