Reseach progress of iRoot SP and root canal sealers over-obturation

The effect of root canal therapy is closely related to the root canal sealers, and extrusion of sealers occurs to part of cases. iRoot SP, which is a kind of bioceramic root canal sealers, attracts clinical operators′ attentions due to its superior biocompatibility, sealing and antibacterial properties. At the meantime, clinicians come to a question of whether over-obturated iRoot SP affects the tooth prognosis. This article summarized the features of iRoot SP, the research progress of sealer extrusion and several follow-up case reports, in order to analyze the prognosis of iRoot SP over-obturation. Key words: Root canal filling materials; Root canal obturation; Prognosis; iRoot SP