Oper Dent. 2010 Jul-Aug;35(4):482-6. doi: 10.2341/09-353-S.
The current study presents a 17-year clinical report of stepwise excavation and indirect pulp capping in a lower right first molar, with great dentin destruction and a lack of dentin support of the cusps. At the first appointment, indirect pulp capping with calcium hydroxide and a temporary filling with zinc oxide cement were performed to minimize the risk of pulp exposure during excavation. After 45 days, the remaining carious tissue was removed and a restoration with glass-ionomer lining (Vitrebond) and resin composite (P-50) was performed. Satisfactory morphology and function of the restoration and pulp vitality were preserved for 17 years, thus indicating that stepwise excavation can be a good treatment alternative in selected cases.
本研究报告了 17 年以来对一颗右下第一磨牙进行逐步去腐、间接盖髓治疗的临床案例,该磨牙牙体组织破坏较大,牙尖缺乏足够的牙本质支撑。初次就诊时,使用氢氧化钙进行间接盖髓,并使用氧化锌暂封,以降低在去腐过程中牙髓暴露的风险。45 天后,去除剩余的腐坏牙体组织,使用玻璃离子水门汀(Vitrebond)垫底,复合树脂(P-50)充填。17 年来,修复体形态和功能良好,牙髓活力得以保留,表明在某些情况下,逐步去腐可以作为一种很好的治疗选择。