Impression accuracy of different methods for flabby ridge:A comparison based on 3-dimensional analysis
10.3969/j.issn.1001-3733.2016.02.010
- VernacularTitle:不同印模方式对松软牙槽嵴印模精度的比较研究
- Author:
Guangna YUE
;
Shizhu BAI
;
Xin DING
;
Hui ZHOU
;
Min YAN
;
Yumei ZHANG
- Publication Type:Journal Article
- Keywords:
Edentulous jaws;
Flabby ridge;
Impression method
- From:
Journal of Practical Stomatology
2016;32(2):202-206
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the impression accuracy of different impression methods for flabby ridge.Methods:5 patients with flabby ridge were included.Conventional technique,perforation technique and window opening technique were performed to make im-pressions and then final models were prepared.The optical models of the flabby ridge area were obtained both in patients'mouths and on the master casts by intraoral optical scanner.Data handling and computations were made by using 3D inspection and metrology soft-ware,regarding SD,Mean +and Mean -,with subsequent analysis.Results:The 3D deviation of the models obtained by conventional technique was the biggest,that obtained by window opening technique was the least.Conclusion:Window opening technique can de-crease the deformation of flabby ridge impression.
