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. 2025 Jan;20(1):704-706.
doi: 10.1016/j.jds.2024.09.020. Epub 2024 Oct 2.

Surgery of impacted maxillary second premolar beneath first molar trifurcation via lateral window maxillary sinus augmentation: A case report

Chen-Chieh Hsu  1 , Meng-Ling Chiang  1   2   3   4 , Jyh-Kwei Chen  1   2   3   5   6
Affiliations

Surgery of impacted maxillary second premolar beneath first molar trifurcation via lateral window maxillary sinus augmentation: A case report

Chen-Chieh Hsu et al. J Dent Sci. 2025 Jan.
No abstract available

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Conflict of interest statement

The authors have no conflicts of interest relevant to this article.

Figures

Figure 1
Figure 1
Photographs of our 12-year-old male patient with a right maxillary second premolar (tooth 15) impacted between radicular furcation of the right maxillary first premolar and first molar (teeth 14 and 16), depicting radiographic findings, surgical procedures, and radiographic post-surgical and follow-up findings. (A) Periapical radiography showing the coronal part of tooth 15 superimposed with the root of the tooth 16. The root of the tooth 14 was curved mesially. (B) Pre-surgical CBCT showing the coronal part of the tooth 15 impacted between the radicular furcation of the tooth 16, while the palatal root of the tooth 14 showed external resorption at its apex. (C) During the surgery, 20 × 15 mm bone window 3 mm over the root apex of the tooth 16 was created. Schneiderian membrane was reflected, revealing dune-shaped cortical bone covering the tooth 15. (D) The impacted tooth 15 and follicular tissue were removed, measuring about 9 × 9 × 5 mm in size. (E) The socket and sinus wall augmentation was done with incremental compaction of 2 bottles of 1.5 ml deproteinized bovine bone (Large Geistlich Bio-Oss® granules, Geistlich Pharma, Wolhusen, Switzerland). The bone window was then covered with a cross-linked collagen resorbable membrane (Zimmer Osseoguard, Zimmer Biomet, Warsaw, IN, USA). (F and G) The 6-month postoperative follow-up CBCT showing the densely packed bone graft along axial sections. (H) The 6-month postoperative follow-up CBCT showing a well-reconstructed buccal plate, with a radiolucent area at the coronal part of extraction socket, and the healthy right maxillary sinus.
See this image and copyright information in PMC

References

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