Table 1.
Comparison of mean of crestal bone level between Groups 1Aa and 2Aa, 1Ab and 2 Ab, 1ADa and 2ADa, 1ADb and 2ADb at different time intervals using cone beam computed tomography and digital radiography by independent t-test
| t-test for equality of means | ||||||
|---|---|---|---|---|---|---|
| Mean±SE difference | 95% CI of the difference | t | df | P (two-tailed) | ||
| Lower | Upper | |||||
| CBCT baseline (at loading) | −0.2500±0.4788 | −1.2770 | 0.7770 | −0.522 | 14 | 0.610 (NS) |
| CBCT follow-up (24 weeks postloading) | −0.1250±0.3139 | −0.7982 | 0.5482 | −0.398 | 14 | 0.696 (NS) |
| Digital radiography baseline (at loading) | −0.0875±0.4208 | −0.9899 | 0.8149 | −0.208 | 14 | 0.838 (NS) |
| Digital radiography follow-up (24 weeks postloading) | −0.1375±0.2449 | −0.6628 | 0.3878 | −0.561 | 14 | 0.583 (NS) |
CBCT: Cone beam computed tomography, CI: Confidence interval, SE: Standard error, NS: Not significant