Dear All, I did Bachelors in Dentistry, then masters of Public Health. Now I want to do PhD in Dentistry field. Will it create any problem for me in future while registering my PhD degree or finding a job?

Will what cause any problems for you?

Do you mean will it be a problem that your Masters is in a different subject area? I don't think so, unless a Masters in dentistry is specifically required for the PhD or job you're applying for.

It would probably be a good idea to have an answer prepared in case they ask you in interview about why you chose that particular masters. Also if there was material you learned or experience you gained during the masters that would be relevant to a dentistry career (I'm sure there must be some overlap between dentistry and public health?) it might be helpful to highlight that in your application.