Influence of the fixed implant-supported provisional phase on the esthetic final outcome of implant-supported crowns: 3-year results of a randomized controlled clinical trial.
OBJECTIVES
The aim of this investigation was to evaluate whether the use of a provisional implant-supported crown improves the final esthetic outcome of implant crowns that are placed within esthetic sites.


MATERIALS AND METHODS
Twenty endosseous implants were inserted in sites 13 to 23 (FDI) in 20 patients. Following the reopening procedure, a randomization process assigned them to either cohort group 1: a provisional phase with soft tissue conditioning using the "dynamic compression technique" or cohort group 2: without a provisional phase. Screw-retained all ceramic crowns were inserted. Clinical follow-up appointments were completed at 36 months evaluating clinical, radiographic outcomes, and implant success and survival.


RESULTS
After 3 years, all implants survived; one implant-supported crown was excluded from the study due to adjacent tooth failure replaced with a further implant supported crown. Modified pink esthetic score (ModPES) scores were significantly different between groups 1 and 2 (P = .018); white esthetic scores (WES) were not statistically different between both groups (P = .194). Mean values of combined modPES and WES were 15.6 for group 1, with a SD of 3.20. Group 2 had a mean combined modPES and WES of 12.2, with a SD of 3.86. Mean bone loss after 3 year was -0.05 and -0.04 mm for groups 1 and 2 respectively, without being statistically significant.


CONCLUSION
Fixed implant-supported provisionals improve the final esthetic outcome of the peri-implant mucosa.
['Furze|David|D|', 'Byrne|Ashley|A|', 'Alam|Sonia|S|', 'Brägger|Urs|U|', 'Wismeijer|Daniel|D|', 'Wittneben|Julia-Gabriela|JG|https://orcid.org/0000-0003-0778-2298']
D003442:Crowns D003758:Dental Implantation, Endosseous D019250:Dental Implants, Single-Tooth D019094:Dental Prosthesis, Implant-Supported D004954:Esthetics D004955:Esthetics, Dental D006801:Humans D016896:Treatment Outcome
provisional provisional esthetic implant soft tissue conditioning implant supported crown mucosa provisionalization