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Oral and Maxillofacial Surgery

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01-10-2021 | Tooth Extraction | Original Article

Displacement of lower third molar into floor of mouth: a single institutional experience

Authors: Masanori Masui, Soichiro Ibaragi, Yohei Takeshita, Joe Iwanaga, Yuki Kunisada, Akira Sasaki

Published in: Oral and Maxillofacial Surgery | Issue 3/2022

Abstract

Purpose

The displacement of the tooth/tooth fragment into the floor of mouth sometimes happens during the lower third molar surgery and the patients are usually referred to oral and maxillofacial surgeons. To date, however, there is no consensus how to manage the displaced tooth due to the lack of available data.

Methods

In this study, we have retrospectively analyzed the management of the displaced lower third molar into the floor of mouth. Our institute experienced seven cases during 2010 to 2020.

Results

Incidence rate of the lingual nerve injury caused by displacement of the lower third molar was 1/7. Six patients out of seven underwent surgical removal of the displaced fragment. The direct approach was used when the fragment was palpable superficially and the fragment was horizontally located away from the lingual plate (2 cases), while when the fragment was not palpable, or was palpable and adjacent to the lingual plate, the lingual mucoperiosteal flap was selected (4 cases).

Conclusion

We conclude that the palpation and preoperative diagnosis with computed tomographic images are significantly important to decide a better and most effective surgical approach.

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Title: Displacement of lower third molar into floor of mouth: a single institutional experience
Authors: Masanori Masui
Soichiro Ibaragi
Yohei Takeshita
Joe Iwanaga
Yuki Kunisada
Akira Sasaki
Publication date: 01-10-2021
Publisher: Springer Berlin Heidelberg
Keywords: Tooth Extraction
Nerve Injury
Tooth Extraction
Published in: Oral and Maxillofacial Surgery / Issue 3/2022
Print ISSN: 1865-1550
Electronic ISSN: 1865-1569
DOI: https://doi.org/10.1007/s10006-021-01012-3

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Displacement of lower third molar into floor of mouth: a single institutional experience

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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