Palabras clave
Tomografía Computarizada de Haz Cónico
Terapia del Conducto Radicular
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Resumen
Objetivo: Evaluar la precisión de la tomografía computarizada de haz cónico (TCHC) en la detección del segundo conducto mesiobucal (MB2) en primeros molares superiores. Métodos: Revisión sistemática realizada de acuerdo con las directrices PRISMA 2020 y registrada en PROSPERO (CRD420251067699). La búsqueda bibliográfica se llevó a cabo en las bases MEDLINE, BVS, LILACS, Cochrane Library y Google Scholar, considerando estudios publicados entre 2013 y 2025. Se incluyeron ensayos clínicos, estudios clínicos, revisiones sistemáticas y metaanálisis. Resultados: De 2.502 registros, siete estudios cumplieron los criterios de inclusión. La TCHC mostró mayor precisión diagnóstica que las radiografías convencionales, con prevalencia de MB2 que varió entre 69,6% y 92%. No se observaron diferencias significativas entre los lados derecho e izquierdo. Los hallazgos sobre sexo y edad fueron inconclusos, mientras que la etnia, las clasificaciones de Vertucci y las distancias interorificios se informaron como factores influyentes. La certeza de la evidencia osciló entre moderada y alta. Consideraciones finales: La TCHC es un método confiable y preciso para identificar conductos MB2 en molares superiores, favoreciendo la planificación y los resultados endodónticos.
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