The impact of immediate placement on the aesthetic outcome of maxillary anterior single-tooth implants: a retrospective study in 91 patients Journal title: ΑΡΧΕΙΑ ΕΛΛΗΝΙΚΗΣ ΣΤΟΜΑΤΙΚΗΣ ΚΑΙ ΓΝΑΘΟΠΡΟΣΩΠΙΚΗΣ ΧΕΙΡΟΥΡΓΙΚΗΣ Authors: Georgios KAMPEROS, Ioanna ZAMBARA, Vassileios PETSINIS, Dimitrios ZAMBARAS Subject(s):