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Arlucea N, Brizuela‐Velasco A, Diéguez-Pereira M, Punset M, Molmeneu M, Lasheras FS, et al. Zirconia vs. Titanium Dental Implants: Primary Stability In-Vitro Analysis. Materials. 2021. doi:10.3390/ma14247886
AutoresNerea Arlucea, Aritza Brizuela‐Velasco, Markel Diéguez-Pereira, Miquel Punset, Meritxell Molmeneu, Fernando Sánchez Lasheras, Hector deLlanos‐Lanchares, Ángel Álvarez‐Arenal
Este estudio comparativo in vitro analiza la estabilidad primaria de implantes dentales de circonio (ZrO2) frente a los de titanio (Ti6Al4V), ambos de idéntico diseño, mediante la medición del torque de inserción y la frecuencia de resonancia en costillas bovinas. Posteriormente, se evaluaron las micromovimientos bajo carga estática aplicada a coronas protésicas fijadas a los implantes. Si bien los implantes de circonio mostraron valores superiores de torque de inserción y frecuencia de resonancia con significación estadística, las micromovimientos bajo carga fueron muy similares entre ambos materiales, sin diferencias significativas. Los hallazgos sugieren que, aunque la circonia podría ofrecer mayor estabilidad inicial, es prudente cautela al aplicar protocolos clínicos basados en la frecuencia de resonancia para este material, dada la evidencia existente limitada a titanio.
The present experimental trial uses two types of dental implants, one made of titanium (Ti6Al4V) and the other one of zirconia (ZrO2), but both of identical design, to compare their stability and micro-movements values under load. One of each type of implant (n = 42) was placed into 21 cow ribs, recording the insertion torque and the resonance frequency using a specific transducer. Subsequently, a prosthetic crown made of PMMA was screwed onto each of the implants in the sample. They were then subjected to a static compression load on the vestibular cusp of the crown. The resulting micromovements were measured. The zirconia implants obtained a higher mean of both IT and RFA when compared with those of titanium, with statistically significant differences in both cases (p = 0.0483 and p = 0.0296). However, the micromovement values when load was applied were very similar for both types, with the differences between them (p = 0.3867) not found to be statistically significant. The results show that zirconia implants have higher implant stability values than titanium implants. However, the fact that there are no differences in micromobility values implies that caution should be exercised when applying clinical protocols for zirconia based on RFA, which only has evidence for titanium.
Arlucea N, Brizuela‐Velasco A, Diéguez-Pereira M, Punset M, Molmeneu M, Lasheras FS, et al. Zirconia vs. Titanium Dental Implants: Primary Stability In-Vitro Analysis. Materials. 2021. doi:10.3390/ma14247886
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