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在全口义齿试戴过程中,义齿基托的固位不良,可直接影响颌位关系、咬合关系、排牙和发音检查。常规用义齿粘附剂可增加义齿的固位力,但此粘附剂口味差,难以从基托或患者的口腔中清除干净,有可能玷污模型,导致粘附剂混入基托。Stevenson RB曾报道用牙膏作为暂时粘附剂。由于牙膏是水溶性的,极易被唾液溶解,在下颌义齿,很难达到所期望的效果,因此,牙膏的使用具有一定的局限性。 作者经临床使用观察,藻酸钠印模材料用作义齿暂时粘附剂克服了以上材料的缺点,达到所要求的粘附效果。 藻酸钠印模材料(上海齿科材料厂生产),按胶体:胶结剂=10:1(或只用胶体)调拌成糊状,具有一定流动性,均匀涂布于蜡基托组织面,厚约1mm,嘱患者在正中颌位咬合,作主动的肌能修整,去除
During the trial of full denture, the denture base is poorly retained, which can directly affect the relationship between jaw position, occlusion, teeth extraction and voice inspection. Conventional denture adhesive can increase denture retention, but this adhesive taste bad, difficult to clean from the base or the patient's mouth, it may defile the model, resulting in adhesive mixed with the base. Stevenson RB has reported using toothpaste as a temporary adhesive. Because toothpaste is water-soluble, easily dissolved in the saliva, in the lower denture, it is difficult to achieve the desired effect, therefore, the use of toothpaste has some limitations. The authors observed by clinical use, sodium alginate impression material temporary denture adhesive to overcome the shortcomings of the above materials to achieve the desired adhesion effect. Sodium alginate impression material (produced by Shanghai Dental Materials Factory) is mixed with paste: binder = 10: 1 (or only with colloid) to form a paste with a certain fluidity and evenly coated on the surface of wax-based tissue , About 1mm thick, Zhu Huanzhe patients in the median jaw bite, as the active muscle can be trimmed, removed