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Asociación entre la microestructura ósea derivada de la CBCT y la pérdida ósea marginal en un sistema de implantes
Wenxi Dong1, Xinrui Lang2, Jie Xia1
1School of Stomatology, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China.
Clinical implant dentistry and related research
|February 10, 2026
Resumen
La fracción de volumen óseo peri-implantado (BV/TV) puede proteger contra la pérdida ósea marginal a largo plazo (MBL) alrededor de los implantes dentales. Sin embargo, la fracción de la superficie ósea (BS/BV) y la separación trabecular (Tb.Sp) son factores de riesgo para la LMB.
Área de la Ciencia:
- Implantología Dental Implantología dental.
- Radiología Oral y Maxilofacial.
- Ciencia de los Biomateriales Ciencia de los Biomateriales.
Sus antecedentes:
- Los implantes de subcrestal con conmutación de plataforma son ampliamente utilizados.
- La pérdida ósea marginal (MBL) es un factor clave en el éxito del implante.
- La tomografía computarizada de haz de cono (CBCT) ofrece una evaluación detallada de la microestructura ósea.
Objetivo del estudio:
- Investigar la asociación entre los parámetros de la microestructura ósea derivados de la CBCT y la MBL.
- Para evaluar estas relaciones durante 1-8 años en torno a los implantes de subcrestal con plataforma conmutada.
Principales métodos:
- Análisis retrospectivo de 142 implantes en 100 pacientes.
- Parámetros de la microestructura ósea derivados del CBCT (BV/TV, BS/BV, Tb.Sp, etc.) medido. medido.
- Pérdida ósea marginal (MBL) evaluada en el inicio, 1-3 años y 3-8 años después de la carga.
- Ecuaciones de estimación generalizadas (GEE) utilizadas para el análisis estadístico.
Principales resultados:
- No hay asociaciones significativas entre la microestructura ósea y la LMB en los primeros seguimientos (T0, T1).
- En el seguimiento a largo plazo (T2, 3-8 años), el periimplante BV/TV fue protector contra la LMB (p=0,0125).
- Los periimplantes BS/BV (p=0,0384) y Tb.Sp (p=0,0270) fueron factores de riesgo significativos para la LMB a largo plazo.
Conclusiones:
- Los periimplantes BV/TV, BS/BV y Tb.Sp son predictores críticos de la LMB a largo plazo.
- El grosor del hueso cortical tiene un impacto limitado en la LMB.
- El análisis de la microestructura ósea basado en CBCT puede ayudar a la predicción del riesgo de MBL y el manejo clínico.
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