Table 1.
Comparison of Initial Forces and Force Loss Over Time of Non-Latex Elastics Between Three Manufacturers
| Brand | 0 Hour Mean±SD (Range) g | 30 min Mean±SD (Range) g | 1 Hour Mean±SD (Range) g | 3 Hours Mean±SD (Range) g | 6 Hours Mean±SD (Range) g | 24 Hours Mean±SD (Range) g |
Repeated Measures ANOVA
|
|---|---|---|---|---|---|---|---|
| P Valued | |||||||
| Forestadent N=20 | 139.03±6.6 (128–156) | 138.58±5.8 (128–152) | 128.59±6.8 (117–147) | 126.27±7.07 (112–140) | 119.52±6.3 (103–131) | 86.27±9.9 (68–110) | P<0.001 df=5 F=938.5 |
| Ortho Technology N=20 | 134.25±5.6 (123–141) | 132.76±5.6 (119–140) | 128.95±7.1 (115–137) | 123.66±6.7 (105–132) | 119.87±5.9 (105–129) | 108.49±5.5 (96–119) | P<0.001 df=5 F=301.1 |
| Dentaurum N=20 | 127.90±12.7 (119–179) | 125.24±12.6 (115–175) | 120.56±11.9. (109–166) | 113.17±11.8 (102–159) | 104.85±10.2 (94–143) | 100.18±12.1 (82–140) | P<0.001 df=5 F=194.8 |
| One Way ANOVA | P<0.001 | P<0.001 | P=0.006 | P<0.001 | P<0.001 | P<0.001 | |
| P Value | 27.84 | 211.71 | 25.64 | 212.19 | 224.24 | 227.34 | |
| df | |||||||
| F |