Primary Stability of Zirconia Dental Implants with Cylindrical and Tapered Designs Across Varying Bone Densities: An In Vitro Evaluation

<b>Background:</b> While titanium implants are widely recognized for their clinical success, zirconia implants have emerged as a metal-free alternative. This study aimed to evaluate the influence of zirconia implant macrogeometry and bone density on primary implant stability. <b>Me...

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Main Authors: Diogo Fernandes, Francisco Cavaco, Filipe Freitas, Duarte Marques, João Caramês, André Moreira
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Dentistry Journal
Subjects:
Online Access:https://www.mdpi.com/2304-6767/12/11/356
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author Diogo Fernandes
Francisco Cavaco
Filipe Freitas
Duarte Marques
João Caramês
André Moreira
author_facet Diogo Fernandes
Francisco Cavaco
Filipe Freitas
Duarte Marques
João Caramês
André Moreira
author_sort Diogo Fernandes
collection DOAJ
description <b>Background:</b> While titanium implants are widely recognized for their clinical success, zirconia implants have emerged as a metal-free alternative. This study aimed to evaluate the influence of zirconia implant macrogeometry and bone density on primary implant stability. <b>Methods:</b> Two types of zirconia implants were tested—the Neodent<sup>®</sup> Zi Ceramic Implant and the Straumann<sup>®</sup> PURE Ceramic Implant, that were placed into polyurethane foam blocks mimicking different bone densities (10 PCF, 15 PCF, 20 PCF, 30 PCF, and 40 PCF). Each implant type was inserted and removed multiple times, with primary stability measured using resonance frequency analysis via the Osstell<sup>®</sup> Beacon device. Statistical tests, including the Shapiro–Wilk test, <i>t</i>-tests, the Mann–Whitney U test, and the Kruskal–Wallis test, were applied, with significance set at 5% (<i>p</i> < 0.05). <b>Results:</b> The tapered Neodent<sup>®</sup> Zi Ceramic Implant consistently showed higher ISQ values across all foam densities compared to the Straumann<sup>®</sup> PURE Ceramic Implant (<i>p</i> = 0.035). Additionally, lower-density foams exhibited lower stability scores (<i>p</i> < 0.05). <b>Conclusion:</b> The study concludes that both the macrogeometry of zirconia implants and bone density significantly affect primary implant stability. Specifically, tapered implants demonstrated higher stability than cylindrical designs, suggesting that implant macrogeometry and bone density should be considered for optimal primary stability in clinical settings.
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spelling doaj-art-6da3d7c390044a1992abaab1b618c21c2024-11-26T17:59:18ZengMDPI AGDentistry Journal2304-67672024-11-01121135610.3390/dj12110356Primary Stability of Zirconia Dental Implants with Cylindrical and Tapered Designs Across Varying Bone Densities: An In Vitro EvaluationDiogo Fernandes0Francisco Cavaco1Filipe Freitas2Duarte Marques3João Caramês4André Moreira5Faculdade de Medicina Dentária da Universidade de Lisboa, 1600-277 Lisbon, PortugalFaculdade de Medicina Dentária da Universidade de Lisboa, 1600-277 Lisbon, PortugalDepartment of Oral Surgery and Oral Medicine, Faculdade de Medicina Dentária da Universidade de Lisboa, 1600-277 Lisbon, PortugalOral Biology and Biochemistry Research Group, Faculdade de Medicina Dentária da Universidade de Lisboa, 1600-277 Lisbon, PortugalDepartment of Oral Surgery and Oral Medicine, Faculdade de Medicina Dentária da Universidade de Lisboa, 1600-277 Lisbon, PortugalDepartment of Oral Surgery and Oral Medicine, Faculdade de Medicina Dentária da Universidade de Lisboa, 1600-277 Lisbon, Portugal<b>Background:</b> While titanium implants are widely recognized for their clinical success, zirconia implants have emerged as a metal-free alternative. This study aimed to evaluate the influence of zirconia implant macrogeometry and bone density on primary implant stability. <b>Methods:</b> Two types of zirconia implants were tested—the Neodent<sup>®</sup> Zi Ceramic Implant and the Straumann<sup>®</sup> PURE Ceramic Implant, that were placed into polyurethane foam blocks mimicking different bone densities (10 PCF, 15 PCF, 20 PCF, 30 PCF, and 40 PCF). Each implant type was inserted and removed multiple times, with primary stability measured using resonance frequency analysis via the Osstell<sup>®</sup> Beacon device. Statistical tests, including the Shapiro–Wilk test, <i>t</i>-tests, the Mann–Whitney U test, and the Kruskal–Wallis test, were applied, with significance set at 5% (<i>p</i> < 0.05). <b>Results:</b> The tapered Neodent<sup>®</sup> Zi Ceramic Implant consistently showed higher ISQ values across all foam densities compared to the Straumann<sup>®</sup> PURE Ceramic Implant (<i>p</i> = 0.035). Additionally, lower-density foams exhibited lower stability scores (<i>p</i> < 0.05). <b>Conclusion:</b> The study concludes that both the macrogeometry of zirconia implants and bone density significantly affect primary implant stability. Specifically, tapered implants demonstrated higher stability than cylindrical designs, suggesting that implant macrogeometry and bone density should be considered for optimal primary stability in clinical settings.https://www.mdpi.com/2304-6767/12/11/356dental implantszirconiumbone densityresonance frequency analysis
spellingShingle Diogo Fernandes
Francisco Cavaco
Filipe Freitas
Duarte Marques
João Caramês
André Moreira
Primary Stability of Zirconia Dental Implants with Cylindrical and Tapered Designs Across Varying Bone Densities: An In Vitro Evaluation
Dentistry Journal
dental implants
zirconium
bone density
resonance frequency analysis
title Primary Stability of Zirconia Dental Implants with Cylindrical and Tapered Designs Across Varying Bone Densities: An In Vitro Evaluation
title_full Primary Stability of Zirconia Dental Implants with Cylindrical and Tapered Designs Across Varying Bone Densities: An In Vitro Evaluation
title_fullStr Primary Stability of Zirconia Dental Implants with Cylindrical and Tapered Designs Across Varying Bone Densities: An In Vitro Evaluation
title_full_unstemmed Primary Stability of Zirconia Dental Implants with Cylindrical and Tapered Designs Across Varying Bone Densities: An In Vitro Evaluation
title_short Primary Stability of Zirconia Dental Implants with Cylindrical and Tapered Designs Across Varying Bone Densities: An In Vitro Evaluation
title_sort primary stability of zirconia dental implants with cylindrical and tapered designs across varying bone densities an in vitro evaluation
topic dental implants
zirconium
bone density
resonance frequency analysis
url https://www.mdpi.com/2304-6767/12/11/356
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