Int J Stomatol

Int J Stomatol ›› 2020, Vol. 47 ›› Issue (6): 711-716.doi: 10.7518/gjkq.2020101

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Research progress on the effect of root canal sealers on root fracture resistance

Ning Chenxi1,2(),Li Xia1,2()   

  1. 1. Dept. of Conservative Dentistry and Endodontics 1, School and Hospital of Stomatology, Shanxi Medical University, Taiyuan 030001, China
    2. Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, China
  • Received:2020-04-09 Revised:2020-07-10 Online:2020-11-01 Published:2020-11-06
  • Contact: Xia Li E-mail:824233776@qq.com;lixia6881@163.com
  • Supported by:
    Shanxi Province Science and Technology Research Project(20150313010-3)

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Abstract:

Root fracture is one of the most serious complications of root canal treatments. Cutting tooth tissue during root canal treatments, using sodium hypochlorite solution, and applying pressure on the wall of the root canal during filling can increase the risk of root fracture. Current research showed that the adhesive strength of root canal sealers with dentin and gutta-percha can affect the fracture resistance of roots to some extent. Several root canal sealers, such as zinc oxide-eugenol-based, glass ionomer-based, resin-based, calcium silicate-based, and silicon-based sealers, are clinically used. The bonding strengths of different types of sealers to dentin and gutta-percha are different. Their impacts on the fracture resistance of root are also different. This article reviews the effect of different root canal sealers on the fracture resistance of roots to provide a basis for a clinical choice of suitable root canal sealers.

Key words: root filling sealers, root fracture, root filling, fracture resistance

CLC Number: 

  • R781.05

TrendMD: 

Tab 1

Effects of different root canal sealers on root fracture resistance"

类型 代表产品 与牙根抗折性的关系
氧化锌丁香酚类 Pulp Canal Sealer、Pulpdent、NZOE 普通氧化锌类与牙本质和牙胶黏结强度极小,溶解性大,几乎不能增强牙根抗折性;NZOE对侧副根管有较好的充填效果,但与牙根抗折性的关系尚不明确
玻璃离子类 ActiV GP sealer 传统玻璃离子类临床使用较少;新型的Activ GP sealer与ActiV GP通过特殊涂层形成稳固的Monoblock,但对牙根抗折性影响尚不明确
树脂类 AH plus、Epiphany、RealSeal 与牙本质黏结性良好,一部分（如Epiphany）可与核心材料（如Resilon）形成一定程度的黏结,提高牙根抗折性
硅酸钙类 iRoot-SP 尺寸稳定,亲水性好,颗粒极小,在牙本质壁上有较好的渗透性,且含有氧化锆成分,利于增强牙根抗折性
硅酮类 GuttaFlow 加压触变性和固化后轻微膨胀使其对侧支根管的充填效果好,与牙本质和牙胶黏结性良好,三维充填效果好,增强牙根抗折性
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