PMC5800456_01
A) Diagnostic preoperative radiography of the mandibular left first molar exhibits a large radiolucency around the mesial root and a small one around the distal root; B) Immediate postoperative radiograph after retrograde treatment and intentional replantation; C) 2-month follow-up radiograph showing remarkable bone healing in the periapical region
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F1
Radiographic evaluation (Figure 1A) exhibited previous root canal therapy with a good quality. Normal occlusion was checked and precise repositioning confirmed with periapical radiography (Figure 1B). In radiographic evaluation at the 2-month follow-up, remarkable bone healing was observed (Figure 1C).
Bacterial aggregates manifest as structure containing gram-positive branching filamentous
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F2
The histopathological examination revealed sulfur granule specimen contained colonies of gram-positive branching filamentous organisms manifesting actinomycosis (Figure 2).