Professional Liability versus General Liability

Our insured is a dentist. He has a general liability policy with no professional services endorsement. A claimant was in the dental chair having X-rays done on her mouth when the X-ray machine fell on her; she was hit in the head and the chest. Now, the claimant is complaining of vision changes and wants to see a neurologist.

The manufacturer of the X-ray machine has been put on notice as well as the installer of the machine, but we are wondering about coverage for our insured. Would this claim fall under professional liability services and be excluded by the CGL form?