Biomechanical Performance of a Novel Implant Design in Simulated Extraction Sites and Sinuslift Procedures
With increasing experience and in an attempt to shorten overall treatment times, implant placement in combination with tooth extractions and sinus lift procedures has become popular. In both cases, primary stability has to be achieved by either engaging apical and oral regions of trabecular bone or...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/13/13/7541 |
| _version_ | 1797592117533474816 |
|---|---|
| author | Virgilia Klär Rüdiger Zimmerer Annika Schulz Bernd Lethaus |
| author_facet | Virgilia Klär Rüdiger Zimmerer Annika Schulz Bernd Lethaus |
| author_sort | Virgilia Klär |
| collection | DOAJ |
| description | With increasing experience and in an attempt to shorten overall treatment times, implant placement in combination with tooth extractions and sinus lift procedures has become popular. In both cases, primary stability has to be achieved by either engaging apical and oral regions of trabecular bone or by engaging residual host bone beneath the sinus cavity. Extraction sites were formed by pressing a root analog into homogeneous low density polyurethane foam which was used as bone surrogate while a 3 mm thick sheet of medium density foam was used for mimicking a sinus lift situation. Two types (n = 10) of bone level implants with a conventional tapered design and a cervical back taper (NobelActive; control) and a novel design characterized by a shift in core diameter and thread geometry (AlfaGate; test) were placed in these models following conventional osteotomy preparation. Insertion torque was measured using a surgical motor and primary stability was determined by resonance frequency analysis. Statistical analysis was based on Welch two sample t tests with the level of significance set at α = 0.05. In sinuslifting, NobelActive implants required significantly higher insertion torques as compared to AlfaGate (<i>p</i> = 0.000) but did not achieve greater implant stability (<i>p</i> = 0.076). In extraction sites, AlfaGate implants showed both, significantly higher insertion torques (<i>p</i> = 0.004) and significantly greater implant stability (<i>p</i> = 0.000). The novel implant design allowed for greater primary stability when being placed in simulated extraction sockets and sinuslift situations. While in extraction sockets the position of condensing threads in combination with an increase in core diameter is beneficial, the deep cervical threads of the novel implant lead to superior performance in sinuslift situations. |
| first_indexed | 2024-03-11T01:46:54Z |
| format | Article |
| id | doaj.art-36e5c9c508bb436d99159a7c83b510ef |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T01:46:54Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-36e5c9c508bb436d99159a7c83b510ef2023-11-18T16:07:53ZengMDPI AGApplied Sciences2076-34172023-06-011313754110.3390/app13137541Biomechanical Performance of a Novel Implant Design in Simulated Extraction Sites and Sinuslift ProceduresVirgilia Klär0Rüdiger Zimmerer1Annika Schulz2Bernd Lethaus3Department of Prosthodontics, Saarland University, Kirrberger Strasse 100, 66421 Homburg/Saar, GermanyDepartment of Oral and Maxillofacial Surgery, University of Leipzig, Liebigstrasse 12, 04103 Leipzig, GermanyDepartment of Prosthodontics, Saarland University, Kirrberger Strasse 100, 66421 Homburg/Saar, GermanyDepartment of Oral and Maxillofacial Surgery, University of Leipzig, Liebigstrasse 12, 04103 Leipzig, GermanyWith increasing experience and in an attempt to shorten overall treatment times, implant placement in combination with tooth extractions and sinus lift procedures has become popular. In both cases, primary stability has to be achieved by either engaging apical and oral regions of trabecular bone or by engaging residual host bone beneath the sinus cavity. Extraction sites were formed by pressing a root analog into homogeneous low density polyurethane foam which was used as bone surrogate while a 3 mm thick sheet of medium density foam was used for mimicking a sinus lift situation. Two types (n = 10) of bone level implants with a conventional tapered design and a cervical back taper (NobelActive; control) and a novel design characterized by a shift in core diameter and thread geometry (AlfaGate; test) were placed in these models following conventional osteotomy preparation. Insertion torque was measured using a surgical motor and primary stability was determined by resonance frequency analysis. Statistical analysis was based on Welch two sample t tests with the level of significance set at α = 0.05. In sinuslifting, NobelActive implants required significantly higher insertion torques as compared to AlfaGate (<i>p</i> = 0.000) but did not achieve greater implant stability (<i>p</i> = 0.076). In extraction sites, AlfaGate implants showed both, significantly higher insertion torques (<i>p</i> = 0.004) and significantly greater implant stability (<i>p</i> = 0.000). The novel implant design allowed for greater primary stability when being placed in simulated extraction sockets and sinuslift situations. While in extraction sockets the position of condensing threads in combination with an increase in core diameter is beneficial, the deep cervical threads of the novel implant lead to superior performance in sinuslift situations.https://www.mdpi.com/2076-3417/13/13/7541insertion torqueprimary implant stabilityextraction socketsinus liftimplant design |
| spellingShingle | Virgilia Klär Rüdiger Zimmerer Annika Schulz Bernd Lethaus Biomechanical Performance of a Novel Implant Design in Simulated Extraction Sites and Sinuslift Procedures Applied Sciences insertion torque primary implant stability extraction socket sinus lift implant design |
| title | Biomechanical Performance of a Novel Implant Design in Simulated Extraction Sites and Sinuslift Procedures |
| title_full | Biomechanical Performance of a Novel Implant Design in Simulated Extraction Sites and Sinuslift Procedures |
| title_fullStr | Biomechanical Performance of a Novel Implant Design in Simulated Extraction Sites and Sinuslift Procedures |
| title_full_unstemmed | Biomechanical Performance of a Novel Implant Design in Simulated Extraction Sites and Sinuslift Procedures |
| title_short | Biomechanical Performance of a Novel Implant Design in Simulated Extraction Sites and Sinuslift Procedures |
| title_sort | biomechanical performance of a novel implant design in simulated extraction sites and sinuslift procedures |
| topic | insertion torque primary implant stability extraction socket sinus lift implant design |
| url | https://www.mdpi.com/2076-3417/13/13/7541 |
| work_keys_str_mv | AT virgiliaklar biomechanicalperformanceofanovelimplantdesigninsimulatedextractionsitesandsinusliftprocedures AT rudigerzimmerer biomechanicalperformanceofanovelimplantdesigninsimulatedextractionsitesandsinusliftprocedures AT annikaschulz biomechanicalperformanceofanovelimplantdesigninsimulatedextractionsitesandsinusliftprocedures AT berndlethaus biomechanicalperformanceofanovelimplantdesigninsimulatedextractionsitesandsinusliftprocedures |