Influence of narrow titanium dental implant diameter on fatigue behavior: a comparison between unitary and splinted implants
Author
González Terrats, Rodrigo
Bonnín Liñares, María
Nart Molina, José
Ruíz Magaz, Vanessa
Publication date
2024ISSN
2077-0383
Abstract
Background: Scientific literature lacks strong support for using narrow diameter implants (NDI) in high masticatory force areas, especially in molars. Implant splinting in cases of multiple missing teeth reduces lateral forces, improves force distribution, and minimizes stress on implants. However, no studies have evaluated the fatigue load resistance of unitary or splinted implants. Methods: This in vitro study compares five groups of new metal alloy implants, including unitary and splinted implants with varying diameters. Mechanical characterization was assessed using a BIONIX 370 testing machine (MTS, Minneapolis, MN, USA) according to ISO 14801. For each of the five study sample groups, (n = 5) specimens underwent monotonic uniaxial compression at break testing and (n = 15) cyclic loading to determine the maximum force (Fmax) and the fatigue life (LF) values. Scanning electron microscopy (SEM) was employed for the fractographic analysis of the fractured samples. Results: The Fmax values for unitary samples ranged from 196 N to 246 N, whereas the two-splinted samples displayed significantly higher values, ranging from 2439 N to 3796 N. Similarly, the LF values for unitary samples ranged from 118 N to 230 N, while the two-splinted samples exhibited notably higher values, ranging from 488 N to 759 N. Conclusions: The observed resistance difference between sample groups in terms of Fmax and LF may be due to variations in effective cross-sectional area, determined by implant diameter and number. Additionally, this disparity may indicate a potential stiffening effect resulting from the splinting process. These findings have significant implications for dental clinical practice, suggesting the potential use of splinted sets of small-sized NDI as replacements for posterior dentition (premolars and molars) in cases of alveolar bone ridge deficiencies.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
616.3 - Pathology of the digestive system. Complaints of the alimentary canal
Keywords
Implant dental estret (NDI)
Implants unitaris
Implants de dues fèrules
ISO 14801
Wöhler corbes S/N
Fractografia SEM
Càrrega estàtica i cíclica
Resistència a la fractura estàtica màxima (Fmax)
Límit de fatiga (LF)
Implante dental estrecho (NDI)
Implantes unitarios
Implantes con dos ferulizaciones
ISO 14801
Wöhler curvas S/N
Fractografía SEM
Carga estática y cíclica
Resistencia máxima a la fractura estática (Fmax)
Límite de fatiga (LF)
Pages
12
Publisher
MDPI
Collection
13; 6
Is part of
Journal of Clinical Medicine
Citation
González Terrats, Rodrigo; Bonnín Liñares, María; Punset fuste, Miquel [et al.]. Influence of narrow titanium dental implant diameter on fatigue behavior: a comparison between unitary and splinted implants. Journal of Clinical Medicine, 2024, 13(6), 1632. Disponible en: <https://www.mdpi.com/2077-0383/13/6/1632>. Fecha de acceso: 23 may. 2024. DOI: 10.3390/jcm13061632
This item appears in the following Collection(s)
- Odontologia [245]
Rights
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/