Eur Endod J. 2020; 5(2): 138-144 | DOI: 10.14744/eej.2020.44127

Histologic Evaluation of Artificial Floors Under MTA and Nano-Filled Resin-Modified Glass Ionomer Used to Repair Furcation Perforations in Dogs

Adel Aladimi¹, Hatem Alhadainy², Ali Farag³, Nahed Abo-Azma⁴, Faisal Torad⁵, Saleem Abdulrab^6
1Department of Conservative Dentistry, College of Dentistry, Taiz University, Taiz, Yemen
²Department of Conservative Dentistry (H.A.), University of North Carolina, Chapel Hill, NC, USA
³Department of Endodontics, Faculty of Dentistry, Tanta University, Tanta, Egypt
⁴Department of Oral Pathology, Faculty of Dentistry, Tanta University, Tanta, Egypt
⁵Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
⁶Department of Dentistry, Madinat Khalifa Health Center, Primary Health Care Corporation, Doha, Qatar

Objective: This study aimed to compare the tissue reaction of two repair materials for furcation perforations, nano-filled resin modified glass ionomer (Nano-FRMGI) and mineral trioxide aggregate (MTA), used with or without an artificial floor.
Methods: A total of 96 teeth in 6 dogs were used for this study. After access cavities, root canals were prepared and obturated with gutta percha using cold lateral condensation technique. Perforations were then created on the floors of the pulp chambers. The perforations divided into four groups n=24/group that were sealed with MTA alone, MTA with calcium sulphate artificial floor (CSAF), FRMGI alone and Nano-FRMGI with CSAF. All access cavities were filled with composite resin. Two dogs were sacrificed at 1, 3, and 6 month. The experimental tooth along with the surrounding alveolar bone were cut in block sections and histologically evaluated for tissue response. Data were analyzed by Chi-square (P≤0.05).
Results: MTA and MTA with CSAF showed more bone and cementum apposition when compared to Nano-FRMGI at 6-month interval. MTA and MTA with CSAF showed less bone resorption, epithelium proliferation and inflammation compared to Nano-FRMGI at 6-month interval.
Conclusion: MTA with CSAF or MTA-alone show better outcomes in the repair of pulp chamber floor perforation.

Keywords: Artificial floor, calcium sulphate, mineral trioxide aggregate, glass ionomer, pulp chamber perforation, plaster of Paris

---

CITE