Maxillary tuberosity triangle phenomenon in impacted upper third molar: A case report

Tri H. Prasetyo, Benny S. Latief

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


Introduction: We reported a case of odontectomy of a Class C or grade 4 impacted upper left third molar (M3) that was surgically removed using alternative classification and technique. Case Report: A 20-year-old woman presented with the chief complaint of pain in the upper left posterior jaw. Clinical examination showed a normal appearance without eruption of upper M3. Panoramic radiograph showed impacted 28 and 18 teeth at the apex region of 27 and 17. Odontectomy was performed in 15 minutes under general anesthesia. The incision was extended from the maxillary tuberosity to the mesial cervicobuccal region of teeth #28 and #16 and continued with a curved oblique buccal incision to the mucobuccal fold. The impacted upper M3 was clearly identified by the presence of bulging on the buccal maxillary bone. Finally, odontectomy and wound closure were performed. Conclusion: An impacted upper M3 may be treated easily by understanding the surrounding anatomic structures. Oral surgery experts can also apply suitable surgical techniques to ease the odontectomy.

Original languageEnglish
Title of host publicationClinical Reports in Dentistry
PublisherNova Science Publishers, Inc.
Number of pages9
ISBN (Electronic)9781536173291
ISBN (Print)9781536173284
Publication statusPublished - 3 Apr 2020


  • Impacted upper third molar
  • Maxillary sinus
  • Maxillary tuberosity
  • Odontectomy


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