Management of Six Root Canals in Mandibular First Molar

Figure 1

Preoperative radiograph shows normal root canal anatomy and apical lesion (a); radiograph to determine working length (b); radiograph shows gutta-percha cones placed in canals (c); postobturation radiograph shows 6 root canals and independent apical foramina ((d) and (e)); clinical view of pulp chamber after root canal treatment (f); periapical repair 6 (g) and 18 months after treatment (h).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)