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Descriptive data of retentive strength of test groups
| Test groups | Valid number | Minimum strength (Mpa) | Maximum strength (Mpa) | Mean (std) |
|---|---|---|---|---|
| PAN | 10 | 3.85 | 5.08 | 4.45 (0.39) |
| UNA | 10 | 6.02 | 7.18 | 6.45 (0.34) |
| UNH | 10 | 4.53 | 5.85 | 4.99 (0.47) |
std Standard deviation
