Gibson Richard, Howlett Paul, Cole Ben O I
Newcastle Dental Hospital, Newcastle-upon-Tyne, UK.
Dent Traumatol. 2008 Jun;24(3):356-9. doi: 10.1111/j.1600-9657.2007.00540.x.
The aim of this study was to evaluate the adequacy of spirally filled vs injected non-setting calcium hydroxide (NS Ca(OH)(2)) in the management of traumatized permanent teeth undergoing endodontic treatment for apexification, control of infection or the management of root resorption. A random selection of patients with traumatized teeth undergoing endodontic procedures was made. A total of 100 cases were assigned for placement of NS Ca(OH)(2) by spiral filling and 50 cases by injection of the dressing directly into the canal. Post-operative radiographs were assessed for complete canal obturation and in particular, the density and length of the dressing within the canal. The results revealed that the injected NS Ca(OH)(2) dressing consistently produced better results than the spirally placed dressings. It also completely removed the chance of instrument fracture and as a result of this trial, the department of child dental health has now adopted the use of this injectable system.
本研究的目的是评估螺旋充填与注射未凝固氢氧化钙（NS Ca(OH)₂）在接受根尖诱导成形术、感染控制或牙根吸收治疗的外伤恒牙根管治疗中的适用性。随机选取接受牙髓治疗的外伤牙患者。总共100例患者被分配通过螺旋充填放置NS Ca(OH)₂，50例患者通过将敷料直接注射到根管内。术后通过X线片评估根管充填是否完全，特别是根管内敷料的密度和长度。结果显示，注射的NS Ca(OH)₂敷料始终比螺旋放置的敷料产生更好的效果。它还完全消除了器械折断的可能性，基于此试验，儿童牙科保健部门现已采用这种可注射系统。
