Los postes de fibra de vidrio reforzados con resina en unión con las estructuras dentarias y cemento de resina se comportan como un monobloque. Una unión inadecuada en las interfaces produce descementación y falilas en la adhesíón del poste frente a fuerzas oclusales o de cizallamiento. Algunos autores sugieren estrategias como el tratar la superficie del poste argumentando que generan retención mecánica y química entre el poste y conducto radicular.

The Historic Sanctuary of Machu Picchu (Cusco, Peru) is one of the most important archaeological monuments in Peru and worldwide. Machu Picchu is classified as a UNESCO World Heritage site and at risk from climatic change. However, the seismic centennial history of Peru reports large earthquakes generated both along the subduction zone (Mw8) and on active crustal faults along the Andean Cordillera (Mw7). It is therefore important to know if Machu Picchu is located in an area of seismic hazard and then to take measures to mitigate potential seismic hazards. Due to the short historical earthquake catalogue (< 500 years) and the absence of significant recent instrumental seismicity in the site’s vicinity (radius of < 30 km), our knowledge about the seismic hazard in Machu Picchu is limited. The earthquakes of 1650 and 1950 affected Cusco city and surrounding areas, but without damage desc...