肯氏Ⅰ、Ⅱ类牙列缺损数字化印模及模型在可摘局部义齿中的应用OA北大核心CSTPCDMEDLINE
Application of digital impression and model in removable partial dentures for Kennedy classⅠandⅡdentition defects
目的 评估肯氏Ⅰ、Ⅱ类牙列缺损数字化印模及树脂模型技术在可摘局部义齿(RPD)中的应用效果.方法 选择肯氏Ⅰ、Ⅱ类牙列缺损患者,按照义齿制作流程分组:数字化印模/树脂模型/钴铬合金铸造支架组(A组)、数字化印模/树脂模型/激光打印钛支架组(B组)、藻酸盐印模/石膏模型/钴铬合金铸造支架组(C组)、藻酸盐印模/石膏模型/激光打印钛支架组(D组),每组40例.对最终完成的RPD在口内就位情况进行检查,评估指标包括卡环固位力、连接体和基托在口内的密合度、咬合准确度,各项指标评估分值使用Kruskal-Wallis秩和检验进行分析.结果 4组RPD各项指标的评分值差异无统计学意义.结论 利用数字化印模及树脂模型完成的铸造钴铬合金和激光打印钛支架式RPD能够满足肯氏Ⅰ、Ⅱ类牙列缺损患者的临床修复要求.
Objective This study aimed to evaluate the application of digital impression and resin model technology in removable partial dentures(RPD)for Kennedy classⅠandⅡdentition defects.Methods Patients with Kennedy classⅠorⅡdental defect were selected and grouped in accordance with the following denture production processes:digital impression/resin model/cast cobalt-chromium alloy framework group(group A),digital impression/resin model/laser printed titanium framework group(group B),alginate impression/plaster model/cast cobalt-chromium alloy framework group(group C),and alginate impression/plaster model/laser printed titanium framework group(group D),with 40 cases in each group.The final RPD was examined in place in the mouth,and the evaluation indicators included the retention force of clamp ring,the tightness of connector and base,and the accuracy of occlusion.The evaluation scores of each in-dex were used for analysis on the Kruskal-Wallis rank-sum test.Results No statistically significant difference in the score of each index was found among the four groups in RPD.Conclusion The cast cobalt-chromium alloy and laser-printed titanium framework RPD using digital impression and resin model can meet the clinical restoration requirements of patients with Kennedy classⅠandⅡdentition defects.
黄建波;梅子彧;黄罡;郭亚林;孟翔峰
南京大学医学院附属口腔医院 南京市口腔医院修复工艺科南京大学口腔医学研究所,南京 210000
口腔医学
牙列缺损肯氏Ⅰ、Ⅱ类可摘局部义齿数字化印模树脂模型
dental defectKennedy class Ⅰ and Ⅱremovable partial denturesdigital impressionsresin model
《华西口腔医学杂志》 2024 (004)
481-485 / 5
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