Silva Emmanuel J N L, Herrera Daniel R, Lima Thiago F, Zaia Alexandre A
Department of Endodontics, Piracicaba Dentistry School, Rua Herotides de Oliveira, Niteroi, Brazil.
J Contemp Dent Pract. 2012 Mar 1;13(2):219-21.
The present report describes and discusses a nonsurgical technique for the removal of overextended gutta-percha.
Mechanical irritation results from overextension and the overextended material used during root canal obturation could produce an inflammatory reaction with an area of rarefaction in the periapical tissues. The healing process is not affected by the presence of filling materials as it is well tolerate by the periapical tissues, but it is accepted that a higher failure rate is found in overfilled teeth.
This clinical report describes one case with an overextended gutta-percha cone and a new nonsurgical technique to remove this material.
The technique described is a conservative, safe and plausible option to remove extruded gutta-percha in periapical area.
Overextended gutta-percha cones could increase the failure of endodontic therapy. Commonly surgical procedures are indicated to remove this overextended material, but this nonsurgical technique could be a better treatment alternative and could increase the chances of success.
本报告描述并讨论一种去除超充牙胶的非手术技术。
超充会导致机械性刺激，根管充填时使用的超充材料可在根尖周组织产生炎症反应及骨质稀疏区。愈合过程不受充填材料存在的影响，因为根尖周组织对其耐受性良好，但公认超充牙的失败率更高。
本临床报告描述了一例牙胶尖超充病例及一种去除该材料的新非手术技术。
所描述的技术是去除根尖区挤出牙胶的一种保守、安全且可行的选择。
牙胶尖超充会增加牙髓治疗失败的风险。通常需采用手术方法去除这种超充材料，但这种非手术技术可能是更好的治疗选择，可提高成功几率。
