Accuracy of Micro Hole Negotiator and Other Techniques for Detecting MB2 Canals in Maxillary Molar Retreatment: A Prospective Cohort Study


ADIGÜZEL M., Özeken F., Çapar İ. D., Arslan H., Dummer P. M. H.

Australian Endodontic Journal, 2025 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1111/aej.70043
  • Dergi Adı: Australian Endodontic Journal
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, MEDLINE
  • Anahtar Kelimeler: dental operating microscopes, endodontics, maxilla, root canal therapy, second mesiobuccal canal
  • Hatay Mustafa Kemal Üniversitesi Adresli: Hayır

Özet

This clinical study evaluated four diagnostic approaches for locating the orifice of the second mesiobuccal canal (MB2) during root canal retreatment of maxillary molars: direct visual inspection, the Micro Hole Negotiator electronic device, the dental operating microscope, and their combined use. A stepwise protocol was used in 124 retreatment cases, applying each method sequentially. Detection rates of MB2 canals increased progressively, with the combined use of the microscope and electronic device yielding the highest adjusted diagnostic efficiency, followed by the microscope alone, the electronic device alone, and direct visual inspection. These findings suggest that optical magnification and impedance-based electronic feedback can enhance canal identification, particularly under complex retreatment conditions. The electronic device outperformed direct visual inspection and may enhance the detection of MB2 canals in clinical settings where a microscope is unavailable.