Flapless Localised Management of Sinus Floor (LMSF) for trans-crestal sinus floor augmentation and simultaneous implant placement. A retrospective non-randomized study: 5-year of follow-up

Giovanni Battista Bruschi,Ernesto Bruschi,Laura Papetti

doi:10.1016/j.heliyon.2021.e07927

Giovanni Battista Bruschi, Ernesto Bruschi + Show 1 more

Open Access

https://doi.org/10.1016/j.heliyon.2021.e07927

Copy DOI

Journal: Heliyon	Publication Date: Sep 1, 2021
Citations: 4	License type: cc-by

Affiliation: Accademia di Belle Arti di Frosinone

Abstract

BackgroundTrans-crestal sinus lift procedures are well established. Purposeto retrospectively analyse the efficacy of a flapless trans-crestal maxillary sinus floor elevation and simultaneous dental implant placement based on the Localised Management of Sinus Floor (LMSF) technique suitable for cases with sufficient width of keratinized tissue and of crestal bone but insufficient vertical dimensions of the bone below the sinus. Materials and methods71 sinus elevations with simultaneous implant placement were performed on 52 consecutive patients. Following an initial pilot bur transmucosal perforation, the Magnetic Mallet was used with progressively larger osteotomes. The mallet osteotomes are initially directed palatally, towards the cortex of the medial wall of the sinus, below the palato-nasal recess (PNR) and then redirected in a more vertical direction to create the final osteotomy for implant placement. ResultsNo significant complications were reported in the post-operative phase. The cumulative success rate during the observation period was 95%. All successful implants were successfully loaded with metal-ceramic or monolithic zirconia crowns and bridges and remained in function during the observation period. ConclusionsFlapless Localised Management of Sinus Floor (LMSF) is a safe and effective surgical technique with minimal risks and with the advantage of low morbidity. Also, only native bone is used for augmentation and there is no need for additional grafting.

Highlights

Vertical bone atrophy of edentulous posterior maxilla is due to various factors
The purpose of the present paper is to study the efficacy of a mini-invasive, flapless modification of the original Localised Management of Sinus Floor (LMSF) technique by following the therapeutic outcome of consecutively treated clinical cases
The practical purpose of this study is to introduce a surgical variant of classical LMSF technique with a lower mobility that can be adopted for select clinical cases

Summary

Introduction

Vertical bone atrophy of edentulous posterior maxilla is due to various factors. Periodontal diseases, non-conservative extractions and preexisting pneumatization are among these. The classical solution is the lateral window sinus graft [1, 2]. This last surgical technique originates from the original Caldwell-Luc sinus operation. The lateral window sinus graft precedes or is concomitant to implant insertion. Purpose: to retrospectively analyse the efficacy of a flapless trans-crestal maxillary sinus floor elevation and simultaneous dental implant placement based on the Localised Management of Sinus Floor (LMSF) technique suitable for cases with sufficient width of keratinized tissue and of crestal bone but insufficient vertical dimensions of the bone below the sinus. The mallet osteotomes are initially directed palatally, towards the cortex of the medial wall of the sinus, below the palato-nasal recess (PNR) and redirected in a more vertical direction to create the final osteotomy for implant placement. Only native bone is used for augmentation and there is no need for additional grafting

Objectives

Methods

Results

Discussion

Conclusion