Contemporary Non-Surgical Root Canal Treatment (NSRCT)

• Goal: Disinfect the root canal system + seal it in 3D.

• Key Techniques:

  • Aseptic technique (rubber dam mandatory).

  • Modern NiTi rotary/reciprocating instruments.

  • Irrigant activation (sonic/ultrasonic).

  • Bioceramic sealers for obturation.

• Outcomes:

  • High success for primary NSRCT (>90% with traditional criteria).

  • Success rates lower with CBCT-based evaluation or in complex medical/anatomical cases.

Endodontic Microsurgery

• Indication: When orthograde NSRCT/retreatment fails to resolve apical periodontitis.

• Procedure: Apicoectomy → retrograde cavity prep → root-end filling with bioceramic material under magnification.

• Success: Modern series report ~85–90% pooled success.

Prognostic Factors

• Size of pre-op lesion.

• Quality of coronal restoration.

• Density of root filling.

• Operator expertise.

Follow-up: Structured recall visits with radiographic monitoring are essential.