By Neal Keeling A drugs gang boss was caught after he took a selfie at the dentist’s chair. Khan Gorgulu, 23, from Red Bank, Manchester, sent the picture to his crime partner. The police went on to use this photo to identify him and prove he was involved in selling cocaine and cannabis in Alderley Edge. Gorgulu has now been put in prison for six years and six months. He was found guilty of planning to sell class A and B drugs after an eight-day trial at Chester Crown Court. The person he sent the selfie to on a burner phone, Giovanni Spada, 37, from Shaw Drive, Knutsford, was put in prison for…