Purpose: The purpose of the study was to examine the long-term performance of bonded
all-ceramic restorations, veneers in particular, in patients with Amelogenesis Imperfecta
(AI). There are few studies of long-term outcome using a minimally invasive procedure
in these patients. This aspect is essential when treating young patients. All-ceramic
restorations, especially veneers, offer a more tissue-preserving treatment but rely on a
successful bonding. Due to the defect enamel in AI patients, the bond strength is
however lower. Material and methods: A retro-prospective evaluation of 40 subjects
with AI (26 women, 14 men) was provided with a total of 360 bonded restorations (282
veneers, 78 crowns). The restorations were evaluated according to complications,
survival- and success rate. Results: The patients were observed up to 25,3 years (mean
15,4 ± 4,3 years). The mean age when receiving the restorations was 18,5 (± 4,2) years.
There had been 59 (16,4%) restorations with prosthetic complications of which 29
(8.1%) had been remade (6 due to esthetic reasons, all in one patient) and 30 (8.3%)
recemented (60% caused by trauma). We found 11 teeth with caries and 3 with
endodontic complications. The over-all survival rate was 91,9% and the over-all success
rate was 83,6%. Conclusion: Bonded all-ceramic restorations with no active retention in
AI patients perform excellent. The most common complications were debonding and
fractures. The treatment should be on individual indications and been preceded by a
multidisciplinary approach.