Distribusi dan frekuensi Dry Socket berdasarkan jenis kelamin, usia, dan lokasi gigi pada pasien di RSKGM FKG UI periode Januari 2012-September 2017 = Distribution and frequency of dry Socket according to gender age and tooth location in Dental Hospital Faculty of Dentistry University of Indonesia RSKGM FKG UI period of January 2012-September 2017