In the mid-nineties, 27 patients received 31 implant-supported crowns in the anterior
maxillary region, and 12 to 15 years later, 18 patients (67%) with 22 implants (67%)
participated in a retrospective study evaluating implant survival, bone loss, prosthetic
complications, patient satisfaction, and patient and professional evaluation of esthetics.
One implant was lost because of implant fracture after 10 years. Mean marginal bone
loss was 1.53 mm (standard error ± 0.17 mm). In 6 patients, 6 crowns were replaced
and 1 repaired. In 3 patients, 3 crowns had minor unrepaired porcelain fractures.
Implant survival was 95.5%, and, despite the high frequency of prosthetic
complications, patients were generally very satisfied with the long-term treatment
outcome. Int J Prosthodont 2013;26:365–369. doi: 10.11607/ijp.3097