Comparative Analysis of Calcium Silicate-based Root Filling Materials Using an Open Apex Model

Area of Science:

• Endodontics
• Dental Materials Science
• Biomaterials

Background:

• Emergence of new calcium silicate-based root filling materials.
• Limited data on their performance in orthograde obturation of open apices.

Purpose of the Study:

• Compare marginal adaptation of ProRoot MTA, NeoMTA Plus, and Endosequence BC RRM-Fast Set Putty (BC RRM-FS) after orthograde placement in open apices.

Main Methods:

• Orthograde obturation of instrumented palatal roots with open apices using four groups: ProRoot MTA, NeoMTA Plus, BC RRM-FS, and BC RRM-FS + BC Sealer.
• Scanning electron microscopy evaluation of marginal adaptation at the anatomic apex.
• Measurement of gap distance at the material-dentin interface after 3-mm root end sectioning.

Main Results:

• No significant differences in marginal adaptation at the anatomic apex among the four groups.
• BC RRM-FS + BC Sealer demonstrated significantly smaller gap size after 3-mm root end resection compared to other groups.
• No significant differences observed among ProRoot MTA, NeoMTA Plus, and BC RRM-FS alone.

Conclusions:

• All tested materials exhibited comparable marginal adaptation at the anatomic apex for orthograde obturation of open apices.
• Using BC Sealer prior to BC RRM-FS Putty placement enhanced adaptation coronal to the apex.