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Randomized Controlled Trial
. 2021 Feb;48(2):272-283.
doi: 10.1111/jcpe.13398. Epub 2020 Nov 25.

Immediate placement of single implants with or without immediate provisionalization in the maxillary aesthetic region: A 5-year comparative study

Kirsten W Slagter  1 , Gerry M Raghoebar  1 , Diederik F M Hentenaar  1 , Arjan Vissink  1 , Henny J A Meijer  1   2
Affiliations
Randomized Controlled Trial

Immediate placement of single implants with or without immediate provisionalization in the maxillary aesthetic region: A 5-year comparative study

Kirsten W Slagter et al. J Clin Periodontol. 2021 Feb.

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 ± 0.68 mm and 0.71 ± 0.71 mm, respectively, in group A and 0.49 ± 0.52 mm and 0.54 ± 0.64 mm, respectively, in group B; the difference between the groups was not significant (p = .305 and p = .477, respectively). Implant and restoration survivals were 100%. No clinically relevant differences in buccal bone thickness or in mid-facial 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).

Keywords: aesthetic region; dental implants; immediate placement.

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Conflict of interest statement

The authors declare that there are no conflicts of interest.

Figures

Figure 1
Figure 1
Consort flow diagram
Figure 2
Figure 2
Intra‐oral radiograph and cone beam computed tomography of implant of group A (immediate implant placement/immediate provisionalization) in position 22 after 5 years in function
Figure 3
Figure 3
Photograph of implant restoration of patient of group A (immediate implant placement/immediate provisionalization) in position 22 after 5 years in function (same patient as in Figure 2)
See this image and copyright information in PMC

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