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Volume 15
Issue 22
10.3390/ma15227995
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Article

Short and Ultra-Short Implants, in Association with Simultaneous Internal Sinus Lift in the Atrophic Posterior Maxilla: A Five-Year Retrospective Study

by
Giorgio Lombardo
1,
Annarita Signoriello
1,*,
Mauro Marincola
2,
Pietro Liboni
1,
Paolo Faccioni
1,
Alessandro Zangani
1,
Antonio D’Agostino
1 and
Pier Francesco Nocini
1
1
Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy
2
Dental Implant Unit, Research Department, Faculty of Dentistry, University of Cartagena, Cartagena 130001, Colombia
*
Author to whom correspondence should be addressed.
Materials 2022, 15(22), 7995; https://doi.org/10.3390/ma15227995
Submission received: 4 June 2022 / Revised: 4 November 2022 / Accepted: 8 November 2022 / Published: 12 November 2022
(This article belongs to the Special Issue Advanced Materials and Techniques in Oral Health Rehabilitation with Dental Implants)
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Abstract

Recent short-term studies suggested the use of short and ultra-short implants in association with a modified osteotome sinus floor elevation (internal sinus lift) technique for the treatment of edentulous resorbed posterior maxilla. The aim of this retrospective study was to investigate this hypothesis in locking-taper implants with a mid-term follow-up of 5 years. Overall, 155 implants (32, 100, and 23 of, respectively, 5.0 mm, 6.0 mm, and 8.0 mm length) were positioned in the atrophic upper maxilla of 79 patients, and 151 implants were loaded with single crowns. Overall implant survival after 5 years was 94.84%. Implant survival for each length group was 93.75%, 94%, and 100% for 5.0, 6.0, and 8.0 mm length, respectively. Preoperative residual crestal bone height of 4.45 (1.3) mm increased to 9.25 (2.13) mm after implant placement and settled at 6.35 (1.73) mm after loading and at 5.25 (1.68) mm at follow-up. Elevation of the Schneiderian membrane was 4.8 (2.46) mm after implant placement, 3.06 (1.3) mm after loading, and 1.46 (1.06) mm at follow-up. Mean variations of peri-implant crestal bone loss and first bone-to-implant contact point were, respectively, −0.36 (1.3) mm and −0.62 (1.15) mm. It can be confirmed that internal sinus lift procedure revealed stable bone gain and negligible resorption at mid-term follow-up for atrophic upper crests with reduced height.
Keywords: bone gain; crestal bone height; implant survival; internal sinus lift; maxilla; short implant; single crown; ultra-short implant bone gain; crestal bone height; implant survival; internal sinus lift; maxilla; short implant; single crown; ultra-short implant

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MDPI and ACS Style

Lombardo, G.; Signoriello, A.; Marincola, M.; Liboni, P.; Faccioni, P.; Zangani, A.; D’Agostino, A.; Nocini, P.F. Short and Ultra-Short Implants, in Association with Simultaneous Internal Sinus Lift in the Atrophic Posterior Maxilla: A Five-Year Retrospective Study. Materials 2022, 15, 7995. https://doi.org/10.3390/ma15227995

AMA Style

Lombardo G, Signoriello A, Marincola M, Liboni P, Faccioni P, Zangani A, D’Agostino A, Nocini PF. Short and Ultra-Short Implants, in Association with Simultaneous Internal Sinus Lift in the Atrophic Posterior Maxilla: A Five-Year Retrospective Study. Materials. 2022; 15(22):7995. https://doi.org/10.3390/ma15227995

Chicago/Turabian Style

Lombardo, Giorgio, Annarita Signoriello, Mauro Marincola, Pietro Liboni, Paolo Faccioni, Alessandro Zangani, Antonio D’Agostino, and Pier Francesco Nocini. 2022. "Short and Ultra-Short Implants, in Association with Simultaneous Internal Sinus Lift in the Atrophic Posterior Maxilla: A Five-Year Retrospective Study" Materials 15, no. 22: 7995. https://doi.org/10.3390/ma15227995

APA Style

Lombardo, G., Signoriello, A., Marincola, M., Liboni, P., Faccioni, P., Zangani, A., D’Agostino, A., & Nocini, P. F. (2022). Short and Ultra-Short Implants, in Association with Simultaneous Internal Sinus Lift in the Atrophic Posterior Maxilla: A Five-Year Retrospective Study. Materials, 15(22), 7995. https://doi.org/10.3390/ma15227995

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