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Updated: May 28, 2025

Microvascular Decompression: Salient Surgical Principles and Technical Nuances
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The modified lateral window technique for retrieving root stumps from the maxillary sinus: Case report.

Chongyuan Liu1,2, Lidi Cheng1,2, Qingying Xu1,3

  • 1Department of Stomatology, Huzhou Central Hospital, Fifth School of Clinical Medicine of Zhejiang Chinese Medical University, Huzhou, Zhejiang, China.

Medicine
|February 10, 2025
PubMed
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A modified lateral window technique effectively removed displaced root stumps from the maxillary sinus, ensuring good recovery and enabling successful dental implant placement in two cases. This method preserves bone for prosthetic rehabilitation.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Surgical Innovation
  • Dental Implantology

Background:

  • Tooth extraction, particularly of upper molars, can lead to root displacement into the maxillary sinus.
  • Displaced roots pose risks of complications like oroantral fistula and sinusitis.
  • Prompt removal of sinus-lodged root stumps is crucial for patient health and future dental restorations.

Purpose of the Study:

  • To present a modified lateral window technique for maxillary sinus root stump removal.
  • To evaluate the efficacy of this technique in managing displaced root fragments.
  • To assess the potential for subsequent dental implant placement after root removal.

Main Methods:

  • Two clinical cases involving root stumps migrated into the maxillary sinus were treated.

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  • A modified lateral window technique was employed for the surgical removal of the root fragments.
  • One patient subsequently underwent dental implant restoration.

    • Main Results:

    • Successful removal of root stumps from the maxillary sinus using the modified lateral window technique in both cases.
    • Patients experienced good postoperative recovery.
    • The patient receiving a dental implant demonstrated excellent implant stability post-restoration.

    Conclusions:

    • The modified lateral window technique is effective for removing root stumps from the maxillary sinus.
    • This surgical approach facilitates bone preservation for successful dental implant placement.
    • The technique's applicability requires careful consideration of root localization within the sinus.