Healing of Large Endodontic Lesions Using Long-Term Application of a New Combination of Triple Antibiotics: A Series of Cases

Figure 1

Mandibular left second molar with symptomatic apical periodontitis. (a) Pre-operative radiograph showing inadequate previous root canal treatment and a large periapical lesion. (b) After removal of the root canal obturation materials, canal preparation, and insertion of antibiotics. (c) Follow-up radiograph after 4 months and relative healing of the periapical lesion. (d) Post-operative radiograph 12 months after the initial radiograph, the obturated canals and bone healing. (e) Post-operative radiograph after 3 years from the initial radiograph, complete bone healing and thorough disappearance of the lesion.

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