Oral Biol Res.  2024 Mar;48(1):15-21. 10.21851/obr.48.01.202403.15.

Surgical treatment of mandibular first premolar with radicular groove: periradicular microsurgery

• Choi Y
• Kim SA
• Bae KB
• Chang HS

• KMID: 2554384
• DOI: http://doi.org/10.21851/obr.48.01.202403.15

Abstract

This study aimed to report the results of a successful periradicular microsurgery on a mandibular first premolar with a radicular groove. A 38-year-old female reported a sinus tract on her buccal gingiva which was radiographically traced to the middle third of the mesial side of the root of her mandibular right first premolar (#44). A radicular groove and an accessory canal in the middle of the radicular groove were found using cone-beam computed tomography. After endodontic treatment, the sinus tract did not disappear; thus, periradicular microsurgery was performed. The radicular groove and the accessory canal were prepared and filled with fastsetting MTA without resectioning the root apex. After 3 weeks, the sinus tract disappeared, and complete healing was revealed on the periapical radiograph at a 5-month follow-up. Therefore, periradicular microsurgery is recommended in mandibular first premolars with radicular grooves on the accessible mesial side of the root.

Keyword

Bicuspid; Cone-beam computed tomography; Microsurgery; Root canal therapy