Effect of different pattern size and pattern shape on castability of commercially pure titanium.
10.4047/jkap.2013.51.4.261
- Author:
Yoon Jeong SEO
1
;
Gye Jeong OH
;
Hyo Il LEE
;
Yoo Jin SHIN
;
Hong Joo KIM
;
Sang Won PARK
Author Information
1. Department of Prosthodontics, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea. psw320@chonnam.ac.kr
- Publication Type:Original Article
- Keywords:
Titanium;
Castability;
Wax pattern;
Size;
Shape;
Sprue
- MeSH:
Titanium*
- From:The Journal of Korean Academy of Prosthodontics
2013;51(4):261-268
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The purpose of this study was to investigate the effect of geometrically different wax pattern shapes and sizes on the castability of Grade2 Cp-Ti (commercially pure titanium). MATERIALS AND METHODS: Total of 40 mesh wax pattern (61 mm x 24 mm, 207 grids), (61 mm x 17 mm, 138 grids) was cast in this experiment. Depending on the geometrical shape of the wax pattern, 8 groups was organized; Flat, Semicircular, Horse-shoe and V-shape, each consisting 5 samples. Runner-bar sprue was used in all patterns. The number of completely cast grid in wax pattern served as a measure for the castability of comercially pure titanium. RESULTS: The mean value of square count in each group was as followed; 133.20 squares in group SS (96.52%), 132.40 squares in group SH (95.94%), 132.00 squares in group SF (95.65%), 127.60 squares in SV (91.43%), 198.60 squares in group LF (95.94%), 197.80 squares in group LV (95.56%), 196.40 squares in group LS (94.88%), and 188.00 squares in group LH (90.82%). CONCLUSION: Within the limitations of this study the results indicate that there were no sttistically significant difference in castability of titanium regarding wax pattern shape (P>.05). However, Small size wax patterns were showing the noticeable castability more than Large size pattern.
