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Periodontal tissue repair after sealing of the gap in vertical root fracture

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Title: Periodontal tissue repair after sealing of the gap in vertical root fracture
Authors: Sugaya, Tsutomu Browse this author →KAKEN DB
Tomita, Mahito Browse this author
Motoki, Youji Browse this author
Zaman, Khurshiduz Browse this author
Miyaji, Hirofumi Browse this author →KAKEN DB
Kawanami, Masamitsu Browse this author →KAKEN DB
Keywords: Vertical root fracture
Attachment level
Periodontal inflammation
Adhesive resin
Gap sealing
Issue Date: Apr-2017
Publisher: Springer
Journal Title: Odontology
Volume: 105
Issue: 2
Start Page: 202
End Page: 207
Publisher DOI: 10.1007/s10266-016-0270-5
PMID: 27655624
Abstract: The aim of this study was to determine whether sealing of fracture gap using adhesive resin through the root canal can prevent inflammation of periodontal tissue, and resealing the incompletely sealed fracture gap from outside can resolve such inflammation in experimentally created vertical root fractures. Vertical root fractures were created in incisor of beagles. In the experimental group, the fracture gap was sealed through the root canal with adhesive resin. After 5 weeks, sites with the clinical attachment level >= 4 mm were further divided randomly into the poor-replanting group and the poor-untreated group. In the poor-replanting group, the tooth was extracted and replanted after resealing the fracture gap with adhesive resin from the outer surface. Sites with clinical attachment level <= 3 mm after 5 weeks were considered as the satisfactory group. The poor-untreated group and the satisfactory group were subjected to no further treatment. The clinical attachment level was evaluated at baseline and after 2, 5, and 9 weeks. After 9 weeks, histological measurements were made to determine the length of the epithelial downgrowth and the area of alveolar bone resorption. The clinical attachment level and the area of bone resorption were significantly smaller in the poor-replanting group and the satisfactory group than in the poor-untreated group (p < 0.05). The results indicate the possibility that periodontal inflammation along the fracture line can be prevented and improved if the fracture gap is sealed.
Rights: The final publication is available at Springer via
Type: article (author version)
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 菅谷 勉

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