Über den Autor

Elika Madani

Klinik für Mund-, Kiefer- und Gesichtschirurgie, Sektion für Regenerative Orofaziale Medizin, Universitätsklinikum Hamburg-Eppendorf
Martinistraße 52
20246 Hamburg
Germany
+49 (0) 40 7410 – 0
e.madani@uke.de
http://www.uke.de

Vita

  • Seit 04/2016 Vorbereitungsassistentin in der Praxis Berliner Bogen, Hamburg
  • 04/2010–06/2015 Studium der Zahn-, Mund- und Kieferheilkunde an der Westfälischen Wilhelms-Universität Münster

Co-Autoren

Anders Henningsen, Eric Freiwald, Maryam Setareh Sanj, Carolin Stolzer, Daniel Grubeanu, Henning Hanken, Ralf Smeets

Subcrestal implant placement of platform-switched implants preserves peri-implant bone: an investigation of immediate versus delayed placed implants

Thema

Introduction

The preservation of peri-implant bone is one requirement for long-term success of dental implants. The purpose of this study was to evaluate the impact of subcrestal placement on the crestal bone level in immediate versus delayed placed implants after loading.

Methods

In this retrospective study, data of 159 patients who received 330 implants was analysed. Implants were placed subcrestally, crestally or epicrestally into fresh sockets or healed sites. Vertical bone level height was assessed radiographically and implants were followed up annually. The influence of patient and implant related risk factors for peri-implant bone loss was evaluated using a linear mixed model.

Results

Depth of implant placement was significantly correlated with peri-implant bone loss (P = 0.001, 95 % CI). Crestal bone loss was determined when implants were placed between 1 mm and 1.99 mm subcrestally. Smoking significantly enhanced the risk of peri-implant bone loss (P = 0.04, 95 % CI). Immediate implant placement was not positively correlated with peri-implant bone loss (P = 0.51, 95 % CI).

Conclusion

Within the limits of this study, implant placement 1.08 mm subcrestally may be recommended in order to avoid supracrestal expositions of platform-switched titanium implants over time.