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Immediate occlusal loading and tilted implants for the rehabilitation of the atrophic edentulous maxilla: 1‐year interim results of a multicenter prospective study
Author(s) -
Testori Tiziano,
Del Fabbro Massimo,
Capelli Matteo,
Zuffetti Francesco,
Francetti Luca,
Weinstein Roberto L.
Publication year - 2008
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2007.01472.x
Subject(s) - maxilla , medicine , implant , prosthesis , radiography , dental prosthesis , dentistry , prospective cohort study , orthodontics , coronal plane , surgery , radiology
Objectives: The aims of this prospective study were to assess the treatment outcome of immediately loaded full‐arch fixed bridges anchored to both tilted and axially placed implants for the rehabilitation of fully edentulous maxillae and to compare the outcome of axial vs. tilted implants. Material and methods: Forty‐one patients with edentulous maxillae were included in the study. Each patient received a full‐arch fixed bridge supported by four axial implants and two distal tilted implants. Loading was applied within 48 h from surgery. Patients were scheduled for follow‐up at 6 months, 1 year and annually up to 5 years. Radiographic evaluation of marginal bone‐level change was performed at 1 year. Results: One patient died 4 months after surgery. Thirty patients were followed for a minimum of 1 year (range 3–42 months, mean 22.1 months). Three failures were recorded at 1‐year follow‐up (two axial implants and one tilted). Two more implants (one tilted and one axially placed) were lost within 18 months of loading. The 1‐year implant survival rate was 98.8% for both axial and tilted implants. Prosthesis success rate was 100% at 1 year. Marginal bone loss around axial and tilted implants at 12‐month evaluation was similar, being, respectively, 0.9±0.4 (standard deviation) mm and 0.8±0.5 mm. Conclusions: The present preliminary data suggest that immediate loading associated with tilted implants could be considered to be a viable treatment modality for the atrophic maxilla and that there does not seem to be a different clinical outcome between tilted and axial implants.