Table 3.
Comparison of bone loss and PTV by variable
| Number of implants | Bone loss mean (SD) | p value | PTV mean (SD) | p value | |
|---|---|---|---|---|---|
| Bone quality | 0.967 | <0.001 | |||
| Soft | 13 | 0.15 mm (0.376) | −2.323 (0.208)a | ||
| Normal | 37 | 0.15 mm (0.423) | −3.273 (0.266)b | ||
| Hard | 48 | 0.13 mm (0.375) | −3.562 (0.335)c | ||
| Location | 0.402 | <0.001 | |||
| Maxilla | 42 | 0.18 mm (0.439) | −2.979 (0.514) | ||
| Mandible | 56 | 0.11 mm (0.351) | −3.522 (0.335) | ||
| Loading period | 0.715 | 0.014 | |||
| Over 1 year | 22 | 0.08 mm (0.282) | −3.125 (0.518)a | ||
| Over 2 years | 19 | 0.21 mm (0.535) | −3.095 (0.424)a | ||
| Over 3 years | 34 | 0.16 mm (0.439) | −3.409 (0.452)b | ||
| Over 4 years | 23 | 0.11 mm (0.259) | −3.465 (0.508)b | ||
| Splinting status | 0.407 | 0.968 | |||
| Yes | 68 | 0.16 mm (0.418) | −3.295 (0.519) | ||
| No | 30 | 0.08 mm (0.245) | −3.290 (0.406) | ||
| Reason for tooth loss | 0.314 | 0.559 | |||
| Periodontitis | 89 | 0.13 mm (0.384) | −3.285 (0.514) | ||
| Caries | 9 | 0.29 mm (0.488) | −3.400 (0.224) |
T test or general linear model
SD standard deviation, PTV Periotest value
a, b, cResults from multiple comparisons using the general linear model