Evaluation of micromotion in multirooted root analogue implants embedded in synthetic bone blocks: an in vitro study

dc.contributor.authorAldesoki, Mostafa
dc.contributor.authorBourauel, Christoph
dc.contributor.authorElshazly, Tarek M.
dc.contributor.authorSchkommodau, Erik
dc.contributor.authorKeilig, Ludger
dc.date.accessioned2025-02-24T06:53:56Z
dc.date.issued2024-01-17
dc.description.abstractBackground While conventional threaded implants (TI) have proven to be effective for replacing missing teeth, they have certain limitations in terms of diameter, length, and emergence profile when compared to customised root analogue implants (RAI). To further investigate the potential benefits of RAIs, the aim of this study was to experimentally evaluate the micromotion of RAIs compared to TIs. Methods A 3D model of tooth 47 (mandibular right second molar) was segmented from an existing cone beam computed tomography (CBCT), and a RAI was designed based on this model. Four RAI subgroups were fabricated as follows: 3D-printed titanium (PT), 3D-printed zirconia (PZ), milled titanium (MT), milled zirconia (MZ), each with a sample size of n = 5. Additionally, two TI subgroups (B11 and C11) were used as control, each with a sample size of n = 5. All samples were embedded in polyurethane foam artificial bone blocks and subjected to load application using a self-developed biomechanical Hexapod Measurement System. Micromotion was quantified by analysing the load/displacement curves. Results There were no statistically significant differences in displacement in Z-axis (the loading direction) between the RAI group and the TI group. However, within the RAI subgroups, PZ exhibited significantly higher displacement values compared to the other subgroups (p < 0.05). In terms of the overall total displacement, the RAI group showed a statistically significant higher displacement than the TI group, with mean displacement values of 96.5 µm and 55.8 µm for the RAI and TI groups, respectively. Conclusions The RAI demonstrated promising biomechanical behaviour, with micromotion values falling within the physiological limits. However, their performance is less predictable due to varying anatomical designs.
dc.identifier.doi10.1186/s12903-024-03854-1
dc.identifier.issn1472-6831
dc.identifier.urihttps://irf.fhnw.ch/handle/11654/50070
dc.identifier.urihttps://doi.org/10.26041/fhnw-11909
dc.language.isoen
dc.publisherBioMed Central
dc.relation.ispartofBMC Oral Health
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc600 - Technik, Medizin, angewandte Wissenschaften
dc.titleEvaluation of micromotion in multirooted root analogue implants embedded in synthetic bone blocks: an in vitro study
dc.type01A - Beitrag in wissenschaftlicher Zeitschrift
dc.volume24
dspace.entity.typePublication
fhnw.InventedHereYes
fhnw.ReviewTypeAnonymous ex ante peer review of a complete publication
fhnw.affiliation.hochschuleHochschule für Life Sciences FHNWde_CH
fhnw.affiliation.institutInstitut für Medizintechnik und Medizininformatikde_CH
fhnw.openAccessCategoryGold
fhnw.pagination99
fhnw.publicationStatePublished
relation.isAuthorOfPublicationdc969cae-4775-4db5-a3c7-f4e32a96f1f2
relation.isAuthorOfPublication.latestForDiscoverydc969cae-4775-4db5-a3c7-f4e32a96f1f2
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