Two fillings competently done. Periodontal procedure not satisfactory. Pain, swelling, darkened teeth. Feels like a sort of factory. A number of dentists, hygienists, assistants. Dentists speak little, communicate through receptionists. A first exam and teeth cleaning paid through my HMO. Further work directly paid and costly. Periodontal work very costly. Mid-procedure, doctor raised price for one quad from $600 to $1100.