Morgan R W, Carnes D L, Montgomery S
Department of Endodontics, Wilford Hall USAF Medical Center Lackland Air Force Base, TX.
J Endod. 1991 Apr;17(4):165-8. doi: 10.1016/S0099-2399(06)82010-8.
The solvent effects of calcium hydroxide irrigating solution (used alone and in combination with sodium hypochlorite) on bovine pulp tissue were studied. Forty pieces of pulp tissue weighing 90 mg each were treated with calcium hydroxide solution alone, calcium hydroxide and sodium hypochlorite alternated, sodium hypochlorite alone, and saline alone. Each piece of tissue was treated for 32 min. Desiccated pretreatment and posttreatment weights were compared. There was no significant difference between the dissolution capability of calcium hydroxide solution used alone and of saline. No significant difference was noted between calcium hydroxide solution and sodium hypochlorite used alternately, and sodium hypochlorite used alone. However, both of these groups were significantly more effective at dissolving tissue than calcium hydroxide solution alone or saline. Calcium hydroxide solution was an ineffective solvent of pulpal tissue. If tissue dissolution is desired during root canal therapy, the use of calcium hydroxide solution as the sole irrigant is no more effective than saline.
研究了氢氧化钙冲洗液（单独使用以及与次氯酸钠联合使用）对牛牙髓组织的溶剂效应。将40片每片重90毫克的牙髓组织分别用单独的氢氧化钙溶液、氢氧化钙和次氯酸钠交替使用、单独的次氯酸钠以及单独的生理盐水进行处理。每片组织处理32分钟。比较干燥预处理和处理后的重量。单独使用的氢氧化钙溶液与生理盐水的溶解能力之间没有显著差异。氢氧化钙溶液与次氯酸钠交替使用和单独使用次氯酸钠之间没有显著差异。然而，这两组在溶解组织方面都比单独使用氢氧化钙溶液或生理盐水显著更有效。氢氧化钙溶液是牙髓组织的无效溶剂。如果在根管治疗期间需要组织溶解，使用氢氧化钙溶液作为唯一冲洗剂并不比生理盐水更有效。
