Fig. 3. Periapical radiographs before and after non-surgical root canal treatment. (A) Preoperative, (B, C) gutta-percha insertion for sinus tract tracing, (D) post-operative radiographs.

Oral Biol Res 2024;48:100~108 https://doi.org/10.21851/obr.48.03.202409.100

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