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Open Access 01-12-2020 | Digital Volume Tomography | Research article

Navigated Antral Bone Expansion (NABE): a prospective study on 35 patients with 4 months of follow-up post implant loading

Authors: Luigi V. Stefanelli, Nicola Pranno, Francesca De Angelis, Silvia La Rosa, Antonella Polimeni, Stefano Di Carlo

Published in: BMC Oral Health | Issue 1/2020

Abstract

Background

The insertion of dental implants in the atrophic posterior maxilla can be a challenge. One option is to modify the residual native bone in preparation for proper, prosthetically-driven implant placement. The procedure presented in this study is called Navigated Antral Bone Expansion (N.A.B.E). This procedure employs the use of a navigation system to plan and guide the initial pilot drilling, bone expansion, final site preparation, and implant insertion. The aim of this study was to compare the distance between the alveolar ridge and the sinus floor measured before and after the surgery performed using the N.A.B.E. technique.

Methods

Thirty-seven partially edentulous patients who were candidates for implant supported restoration in the posterior maxilla, with a bone height ranging from 4 to 7 mm were enrolled. The N.A.B.E procedure was used to increase the bone height. Paired-samples t-test evaluated the distance between the alveolar ridge and the sinus floor measured before and after surgery. The occurrence of post-surgical complications, and the angular deviation between the planned osteotomy and the actual placed implant trajectories were evaluated.

Results

Out of the 37 consecutive patients enrolled in the study, 35 were considered in the data analyses. Patients’ bone height after surgery compared to the bone height before surgery showed a statistically significant increase (p < .0005) of 3.96 mm (95% CI, 3.62 mm to 4.30 mm). No post-operative complications were observed in the 35 patients. The mean angular deviation between the planned osteotomy trajectory and the placed implant trajectory ranged between 12.70⁰ to 34.90⁰ (mean 25.17⁰ ± 5.10⁰).

Conclusions

This study provides evidence that N.A.B.E. technique is able to provide a significant bone increase, and could be considered an alternative method to the management of the atrophic posterior maxilla with a minimally invasive approach.

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Title: Navigated Antral Bone Expansion (NABE): a prospective study on 35 patients with 4 months of follow-up post implant loading
Authors: Luigi V. Stefanelli
Nicola Pranno
Francesca De Angelis
Silvia La Rosa
Antonella Polimeni
Stefano Di Carlo
Publication date: 01-12-2020
Publisher: BioMed Central
Keywords: Digital Volume Tomography
Digital Volume Tomography
Published in: BMC Oral Health / Issue 1/2020
Electronic ISSN: 1472-6831
DOI: https://doi.org/10.1186/s12903-020-01268-3

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Navigated Antral Bone Expansion (NABE): a prospective study on 35 patients with 4 months of follow-up post implant loading

Abstract

Background

Methods

Results

Conclusions

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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