Effects of various thicknesses and levels of mineral trioxide aggregate coronal plugs on nanoleakage and fracture resistance in revascularization: An in vitro study

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Gunal E., Bezgin T., Ocak M., Bilecenoglu B.

AUSTRALIAN ENDODONTIC JOURNAL, cilt.47, ss.608-615, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1111/aej.12531
  • Dergi Adı: AUSTRALIAN ENDODONTIC JOURNAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, MEDLINE
  • Sayfa Sayıları: ss.608-615
  • Anahtar Kelimeler: coronal plug, fracture resistance, Micro-CT, nanoleakage, pulp regeneration, IMMATURE PERMANENT TEETH, APICAL PERIODONTITIS, COMPOSITE RESIN, GUTTA-PERCHA, REVITALIZATION, PROGNOSIS, BARRIERS, LEAKAGE
  • Ankara Üniversitesi Adresli: Evet

Özet

The aim of this study was to evaluate the effects of mineral trioxide aggregate (MTA) applied at varying levels and thickness in the cervical region of the root on the leakage and fracture resistance of the simulated immature teeth. 3 study groups (n = 16) (Group 1: 2 mm MTA, Group 2: 4 mm MTA, Group 3: 2 mm MTA+2 mm RMGIC below cementoenamel junction) and 2 control groups (Group 4: Complete canal obturation, Group 5: No coronal plug) were used for the study. Nanoleakage was measured using a micro-computed tomography system. For the fracture resistance test, a universal testing machine was used. The amount of silver nitrate penetration decreased while MTA thicknesses increased (P < 0.001). However, the placement of MTA as a thicker layer did not make any additional contribution on the fracture resistance (P > 0.05). The 4-mm coronal MTA plug can be suggested in RETs for its superior sealing and reinforcement abilities.