Dentoalveolar Abscess Caused by Pericoronitis of an Erupting First Molar

<b>Background</b>: Pericoronitis is defined as inflammation of the soft tissues around the crown of an erupting tooth or a tooth with incomplete eruption, most commonly during eruption of the third molars. Pediatric dentists frequently encounter pericoronitis of the first molar, most of...

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Main Authors: Kana Kawashima, Masashi Ogawa, Meiko Tachikake, Yuto Shoji, Tatsuya Akitomo, Ryota Nomura
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Diagnostics
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Online Access:https://www.mdpi.com/2075-4418/15/12/1531
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author Kana Kawashima
Masashi Ogawa
Meiko Tachikake
Yuto Shoji
Tatsuya Akitomo
Ryota Nomura
author_facet Kana Kawashima
Masashi Ogawa
Meiko Tachikake
Yuto Shoji
Tatsuya Akitomo
Ryota Nomura
author_sort Kana Kawashima
collection DOAJ
description <b>Background</b>: Pericoronitis is defined as inflammation of the soft tissues around the crown of an erupting tooth or a tooth with incomplete eruption, most commonly during eruption of the third molars. Pediatric dentists frequently encounter pericoronitis of the first molar, most of which resolve spontaneously. We describe the case of a 7-year-old girl who was referred to our hospital with intractable swelling in the right buccal region. <b>Case Presentation</b>: Intraoral examination showed an erupting right mandibular first molar and facial examination revealed swelling and an accumulation of pus in the cheek region. Radiographic examination revealed no pathological findings; therefore, it was diagnosed as a cheek abscess, and the region was incised that day. However, the symptoms recurred 3 weeks later, and cone-beam computed tomography detected a bone defect in the right mandibular first molar region, confirming a diagnosis of dentoalveolar abscess caused by pericoronitis of the first molar. The swelling resolved after incision of the abscess, and bone recovery was confirmed by X-ray in the follow-up period. <b>Conclusions</b>: Erupting first molars is at risk of pericoronitis, which may sometimes progress to a dentoalveolar abscess. Dental professionals should be alert to this possibility and should advise pediatric patients and their guardians to maintain good oral hygiene around erupting molars.
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spelling doaj-art-eb9ab7cdf33d42fa94b43552841a774f2025-08-20T03:27:01ZengMDPI AGDiagnostics2075-44182025-06-011512153110.3390/diagnostics15121531Dentoalveolar Abscess Caused by Pericoronitis of an Erupting First MolarKana Kawashima0Masashi Ogawa1Meiko Tachikake2Yuto Shoji3Tatsuya Akitomo4Ryota Nomura5Department of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, JapanDepartment of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, JapanDepartment of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, JapanDepartment of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, JapanDepartment of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, JapanDepartment of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan<b>Background</b>: Pericoronitis is defined as inflammation of the soft tissues around the crown of an erupting tooth or a tooth with incomplete eruption, most commonly during eruption of the third molars. Pediatric dentists frequently encounter pericoronitis of the first molar, most of which resolve spontaneously. We describe the case of a 7-year-old girl who was referred to our hospital with intractable swelling in the right buccal region. <b>Case Presentation</b>: Intraoral examination showed an erupting right mandibular first molar and facial examination revealed swelling and an accumulation of pus in the cheek region. Radiographic examination revealed no pathological findings; therefore, it was diagnosed as a cheek abscess, and the region was incised that day. However, the symptoms recurred 3 weeks later, and cone-beam computed tomography detected a bone defect in the right mandibular first molar region, confirming a diagnosis of dentoalveolar abscess caused by pericoronitis of the first molar. The swelling resolved after incision of the abscess, and bone recovery was confirmed by X-ray in the follow-up period. <b>Conclusions</b>: Erupting first molars is at risk of pericoronitis, which may sometimes progress to a dentoalveolar abscess. Dental professionals should be alert to this possibility and should advise pediatric patients and their guardians to maintain good oral hygiene around erupting molars.https://www.mdpi.com/2075-4418/15/12/1531dentoalveolar abscesspericoronitisfirst molarpediatric dentistry
spellingShingle Kana Kawashima
Masashi Ogawa
Meiko Tachikake
Yuto Shoji
Tatsuya Akitomo
Ryota Nomura
Dentoalveolar Abscess Caused by Pericoronitis of an Erupting First Molar
Diagnostics
dentoalveolar abscess
pericoronitis
first molar
pediatric dentistry
title Dentoalveolar Abscess Caused by Pericoronitis of an Erupting First Molar
title_full Dentoalveolar Abscess Caused by Pericoronitis of an Erupting First Molar
title_fullStr Dentoalveolar Abscess Caused by Pericoronitis of an Erupting First Molar
title_full_unstemmed Dentoalveolar Abscess Caused by Pericoronitis of an Erupting First Molar
title_short Dentoalveolar Abscess Caused by Pericoronitis of an Erupting First Molar
title_sort dentoalveolar abscess caused by pericoronitis of an erupting first molar
topic dentoalveolar abscess
pericoronitis
first molar
pediatric dentistry
url https://www.mdpi.com/2075-4418/15/12/1531
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AT meikotachikake dentoalveolarabscesscausedbypericoronitisofaneruptingfirstmolar
AT yutoshoji dentoalveolarabscesscausedbypericoronitisofaneruptingfirstmolar
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