牙本质过敏症是口腔科临床常见的牙体硬组织非龋性疾病。近几年来,随着铸造烤瓷全冠及其固定桥在口腔牙体牙列缺损修复治疗中的广泛应用,因牙体制备切割大量牙体釉质而致牙本质过敏成为该病新的重要病因之一。由于基牙牙体制备在数分钟内即磨除牙体硬组织——牙釉质,使牙本质完全裸露,患者被制备的基牙对外界的温度和机械刺激高度敏感,甚至不能正常进食咀嚼。因此如何预防和治疗因牙体制备所致的牙本质过敏症已为临床医师所重视。本文采用格鲁玛(Gluma)脱敏药液对牙体切割后的修复基牙进行牙本质过敏症治疗,获得理想疗效,现报道如下,并对该脱敏药液的效果给予评价。 1 材料与方法 1.1 材料:选用贺利氏公司(Heraeus)生产的格鲁玛(Gluma)脱敏药液,内含5％戊二醛、36％羟乙基甲丙烯酸脂和水。 1.2 方法:对因需铸造烤瓷全冠或固定桥修复的活髓基牙120颗经牙体切割,基牙制备后采用温度刺激、机械刺激确认有不同程度牙本质过敏症。印模后用柔和压缩空气吹干基牙牙体表面,隔湿,用格鲁玛脱敏液均 Dentin hypersensitivity is a common dental hard tissue non-carious disease in dentistry. In recent years, with the casting of porcelain crown and its fixed bridge in the dentition defect repair of oral teeth in the wide range of applications, due to tooth preparation and cutting a large number of dental enamel caused dentin hypersensitivity as a new important cause of the disease one. As the preparation of the abutment tooth within a few minutes that is to remove the hard tissue of the tooth - enamel, dentin completely exposed, the patient’s abutments are highly sensitive to external temperature and mechanical stimulation, and even can not even eat normally chew. Therefore, how to prevent and treat dentin hypersensitivity caused by tooth preparation has been paid more and more attention by clinicians. In this paper, Gluma desensitization liquid tooth denture after tooth repair denture hypersensitivity treatment, the desired effect, are reported below, and the effect of the desensitization liquid to be given. 1 Materials and methods 1.1 Materials: Choose Gluco desensitization solution from Heraeus containing 5% glutaraldehyde, 36% hydroxyethylmethacrylate and water. 1.2 Methods: Due to the need to cast porcelain crowns or fixed bridges repaired 120 live pulp abutments cut through the teeth, the temperature after the preparation of abutments, mechanical stimulation to confirm the different degrees of dentin hypersensitivity. After the impression with soft compressed air to dry the surface of the abutment teeth, separated from the wet, with Geluma desensitization liquid