Nonsurgical Clinical Management of Periapical Lesions Using Calcium Hydroxide-Iodoform-Silicon-Oil Paste

Figure 1

Schematic drawing showing a step-by-step procedure of cyst treatment through the root canal using CHISP. (a) Assessment of cyst size and position using radiographs. (b) Tooth is opened to access root canal. (c) File implementation to reach infected area and cyst. (d) CHISP is injected through the drilled root canal until the cyst is filled; filling is assessed by intraoperative radiograph. (e) The filling enhances tissue healing while resorbing, allowing bone formation. (f) Complete healing and bone formation, no radiolucency is seen near the root.

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