【摘要】 目的:通过对矫治后模型采用不同量的牙托粉充胶,获得拔牙和不拔牙病例Hawley保持器制作所需牙托粉用量。方法:选择拔牙病例20例,非拔牙病例15例,对每个病例取5次模,翻制5副模型。采用5种不同剂量的牙托粉充胶。通过对充胶后剩余及欠缺量的评估,获得牙托粉的常规用量。结果:拔牙病例制作Hawley保持器上下颌共需约6g牙托粉,非拔牙病例上下颌共需约5.5g。结论:拔牙病例Hawley保持器制作所需牙托粉用量较非拔牙病例少。更多还原

【Abstract】 Objective:To acquire the normal dosage of denture acrylic in Hawley retainer-making by analyzing different dosage used to different models which had been treated.Methods:20 extraction cases and 15 non-extraction cases were selected.Five models were made for every case and five different dosage of denture acrylic were used.By assessing the surplus and deficit of denture acrylic after retainer-making,the normal dosage of denture acrylic were acquired.Results:7.5ml denture acrylic was needed in maxillary or mandibular retainer-making with extraction,and 8ml denture acrylic was needed in maxillary or mandibular retainer-making with non-extraction.Conclusion:The dosage of denture acrylic in Hawley Retainer-making with extraction was less than that of non-extraction group.更多还原