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Influence of enamel matrix derivative on healing of root surfaces after bonding treatment and intentional replantation of vertically fractured roots

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Title: Influence of enamel matrix derivative on healing of root surfaces after bonding treatment and intentional replantation of vertically fractured roots
Authors: Sugaya, Tsutomu Browse this author →KAKEN DB
Tomita, Mahito Browse this author
Motoki, Youji Browse this author
Miyaji, Hirofumi Browse this author →KAKEN DB
Kawamami, Masamitsu Browse this author
Keywords: vertical root fracture
enamel matrix derivative
new cementum
root resorption
intentional replantation
Issue Date: Oct-2016
Publisher: Wiley-Blackwell
Journal Title: Dental traumatology
Volume: 32
Issue: 5
Start Page: 397
End Page: 401
Publisher DOI: 10.1111/edt.12270
PMID: 26996758
Abstract: Background/Aim: The objectives of this study were to histopathologically evaluate cementum regeneration on root surfaces when an enamel matrix derivative (EMD) was used to bond a vertically fractured root and to evaluate the effectiveness of EMD in inhibiting root resorption. Material and methods: A total of 40 roots from 24 maxillary premolars in beagles were used. The root was vertically fractured using a chisel and mallet. Super-Bond was then used to bond the fractured root. In the experimental group, the root surface was treated with ethylenediaminetetraacetic acid and an EMD. The control group received no treatment. The root was then replanted in its original location. Histopathological observation and measurement using image-analyzing software were carried out after 8 weeks. Results: In the experimental group, shallow resorption cavities developed on the root planed surfaces with new acellular cementum appearing over them. In the control group, no new cementum was seen on the planed surfaces, and there was connective tissue joining the roots. In some of the samples, resorption and multinucleated giant cells were seen. The experimental group showed a significantly larger volume of cementum formation (P < 0.001), and the volume of root resorption was significantly smaller (P = 0.004). Conclusion: When bonding and replanting tooth roots after a vertical fracture, the application of EMD was effective in regenerating cementum on root surfaces from which periodontal ligament had been lost in the area around the fracture line and in reducing the incidence of root resorption.
Rights: This is the peer reviewed version of the following article: [ Influence of enamel matrix derivative on healing of root surfaces after bonding treatment and intentional replantation of vertically fractured roots.], which has been published in final form at [http://dx.doi.org/10.1111/edt.12270]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Type: article (author version)
URI: http://hdl.handle.net/2115/67216
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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