Hodosh M, Hodosh S H, Hodosh A J
Harvard University School of Dental Medicine, Cambridge, Massachusetts.
Compendium. 1994 May;15(5):658, 660, 662 passim; quiz 667.
This article summarizes the concepts that are believed to cause dentinal hypersensitivity. It is no longer necessary and may not be feasible to obliterate dentinal tubules to obtain relief from the pain caused by dentinal hypersensitivity. In-office agents that obliterate the dentinal tubules may provide initial relief of pain, but they can impede the flow of potassium and nitrate ions toward the pulp and diminish the long-term beneficial effects seen with the routine use of potassium nitrate dentifrices. An in-office preparation that does not obliterate dentinal tubules, such as potassium nitrate gel, is recommended if potassium nitrate dentifrices are to be used for patient self-treatment. With the population living longer, dentists are challenged to maintain patients' dentition for a lifetime of comfort.
本文总结了被认为会导致牙本质过敏的相关概念。为缓解牙本质过敏引起的疼痛而封闭牙本质小管已不再必要，而且可能不可行。诊室使用的封闭牙本质小管的制剂可能会提供初期的疼痛缓解，但它们会阻碍钾离子和硝酸根离子向牙髓的流动，并削弱常规使用硝酸钾牙膏所带来的长期有益效果。如果要让患者自行使用硝酸钾牙膏进行治疗，推荐使用不封闭牙本质小管的诊室制剂，如硝酸钾凝胶。随着人口寿命延长，牙医面临着挑战，要维持患者一生的牙列舒适。
