Abstract
Aim
To compare marginal bone level changes around immediately placed and immediately provisionalized implants with immediately placed and delayed provisionalized implants in the aesthetic region after five years of function.
Materials and Methods
Forty patients with a failing tooth in the maxillary anterior region were randomly assigned immediate implant placement with immediate (Group A: n=20) or delayed (Group B: n=20) provisionalization. Definitive crown placement occurred three months after provisionalization. The primary outcomes were changes in marginal bone level. In addition, survival rates, buccal bone thickness, soft peri‐implant tissues, aesthetics and patient reported outcomes were assessed.
Results
After 5 years, the mean mesial and distal marginal bone level changes were 0.71±0.68mm and 0.71±0.71mm respectively in Group A and 0.49±0.52mm and 0.54±0.64mm respectively in Group B; the difference between the groups was not significant (p=0.305 and p=0.477 respectively). Implant and restoration survivals were 100%. No clinically relevant differences in buccal bone thickness or in midfacial peri‐implant mucosal level, aesthetic and patient outcomes were observed.
Conclusions
The mean marginal bone level changes following immediate implant placement and provisionalization were comparable with immediate implant placement and delayed provisionalization. (www.isrctn.com: ISRCTN57251089 and www.trialregister.nl: NL8255).
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