数字化模型置换印模与选择性压力印模修复下颌末端游离缺失的效果比较  

Clinical effect of digital model replacement impression versus selective pressure impression in repairing mandibular distal free defect

作　　者：闫慧鑫 呼海燕[2] 刘继华 孟文霞 YAN Hui-xin;HU Hai-yan;LIU Ji-hua;MENG Wen-xia(Department of Stomatology,Yan'an Traditional Chinese Medicine Hospital,Yan'an 716000,Shaanxi,CHINA;Department of Prosthodontics,the Affiliated Hospital of Yan'an University,Yan'an 716000,Shaanxi,CHINA;Department of Stomatology,Yan'an Hospital of Traditional Chinese Medicine,Yan'an 716000,Shaanxi,CHINA;Department of Stomatology,the Affiliated Hospital of Yan'an University,Yan'an 716000,Shaanxi,CHINA)

机构地区：[1]延安市中医医院口腔科,陕西延安716000 [2]延安大学附属医院口腔修复科,陕西延安716000 [3]陕西省延安市中医医院口腔科,陕西延安716000 [4]延安大学附属医院口腔科,陕西延安716000

出　　处：《海南医学》2019年第23期3063-3066,共4页Hainan Medical Journal

摘　　要：目的比较数字化模型置换印模与选择性压力印模用于修复下颌末端游离缺失的临床效果。方法选取2016年8月至2018年8月期间在延安大学附属医院口腔科门诊修复下颌末端游离缺失的患者66例进行研究。采用随机数表法将患者分为观察组和对照组,每组33例。观察组实施数字化模型置换印模法进行印模制取,对照组实施选择性压力印模法进行印模制取,比较两组患者初戴义齿时的义齿黏膜压痛情况、使用3个月后的义齿基托边缘的伸展情况、咀嚼效率以及使用满意度。结果观察组患者义齿基托边缘的伸展情况与对照组比较差异无统计学意义(P>0.05);观察组患者义齿的黏膜压痛Ⅰ级、Ⅱ级、Ⅲ级分别为84.85%、9.09%、6.06%,明显低于对照组的51.52%、36.36%、12.12%,差异均有统计学意义(P<0.05);两组患者对义齿使用的满意度比较差异无统计学意义(P>0.05);观察组患者的义齿咀嚼效率为1.35±0.12,明显高于对照组的1.10±0.08,差异有统计学意义(P<0.05)。结论两种制模方法均可以用于可摘局部义齿修复下颌游离端牙列缺损,但是在黏膜压痛、义齿的咀嚼效率方面,数字化模型置换印模优于选择性压力印模。Objective To investigate the clinical effect of digital model replacement impression and selective pressure impression in repairing mandibular distal free defect. Methods A total of 66 patients with mandibular distal free defect, who admitted to Department of Stomatology, the Affiliated Hospital of Yan’an University from August 2016 to August 2018 were enrolled and divided into the observation group and control group according to random number table method, with 33 patients in each group. Among them, the observation group was implemented with the digital model replacement impression method for impression preparation, and the control group applied selective pressure impression method for impression preparation. The denture mucosal tenderness, extension of the denture base after 3 months, chewing efficiency, and the satisfaction of use of the two groups of patients with dentures were compared. Results There was no significant difference in the extension of the denture base between the observation group and the control group(P>0.05). The mucosal tenderness of the observation group in grade Ⅰ, grade Ⅱ, gradeⅢ were 84.85%, 9.09%, 6.06%, respectively, which were significantly lower than corresponding 51.52%, 36.36%,12.12% of the control group(all P<0.05). There was no significant difference in the satisfaction between the two groups(all P>0.05). However, the masticatory efficiency of the patients in the observation group was 1.35±0.12, which was significantly higher than 1.10±0.08 in the control group(P<0.05). Conclusion Both methods can be used to repair mandibular free end dentition defect with removable partial dentures, but digital model replacement impression is superior to selective pressure impression in terms of mucosal tenderness and masticatory efficiency of dentures.

关 键 词：数字化模型置换印模 选择性压力印模 下颌末端游离缺失 伸展情况 黏膜压痛 咀嚼效率 

分 类 号：R783.4[医药卫生—口腔医学]