Further to Dr Mikes comments, I recall a case about 2 year ago where a dentist who had been struck off for life in the UK for a number of cases of serious malpractice was discovered to have set up his stall in Spain and was causing further mayhem amongst punters with his new practice.
Just wondered what checks are done by Spanish authorities, if any, on their qualifications and past history.

Regarding the prices,........they are frightening,..........................seems they just think of a number then add on a few zeros for their profit margin.
Only too pleased that my two ankle-snappers are up and away.

Strange thing is he was in Fuengirola and treated some people, incuding my wife, and she thought he was one of the best she had been to.

"If it ain't broke, don't fix it."
One should ask the orthodontist if he/she can indicate any anomalies of the upper palate, and whether or not he/she can determine the growth of the child's jawbone. Fat lot of good for children to have beautifully straight teeth if they can not bite/chew their food properly in adulthood.
Just my thoughts.