Uncompetent dentist

My son was at DR loosa at Medicross Krugersdorp dental today. After they injected him he told them is mouth is not numb. They told him he is only jokeng. After they held him down an forefully removed his tooth he was cryng in pain. He chocked on 1 of the fillings and his mother had to enter veen. My son is 6 years old and is verry traumatised of the ordeal.