Table 9.
Summary of study characteristics and results of the included study assessing VPCC.
| Reference | Sample | Outcomesa | Results | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Baseline G1 | ΔG1b | Baseline G2 | ΔG2b | ΔG1 − ΔG2 | P-valuec | ||||
| Group 1 | Group 2 | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | ||||
| Işcan et al. (43) | |||||||||
| VPCC | Untreated | Overbite (mm) | −2.9 (2.3) | 3.9 (1.4) | −2.2 (2.2) | 0.4 (−) | 3.5 | P < 0.01 | |
| n = 18 | n = 17 | SN.GoGn (°) | 41.1 (3.5) | −1.4 (1.6) | 41.2 (3.7) | −0.1 (−) | −1.3 | P < 0.05 | |
| 12♀/6♂ | 11♀/6♂ | SN.PP (°) | NA | 0.6 (1.8) | NA | 0.2 (−) | 0.4 | NS | |
| 9.4±0.9 yrs | 10.8±1.3 yrs | ||||||||
| OP: 6–12 months | OP: 7–12 months | ||||||||
SD, standard-deviation; ♀, female; ♂, male; yrs, years; G1, group 1; G2, group 2; NS, non-significant; OP, observation period; NA, not available; VPCC, vertical-pull chin cup; ΔG1, difference between final and baseline measurements for group 1; ΔG2, difference between final and baseline measurements for group 2; ΔG1 − ΔG2, difference between changes observed for groups 1 and 2.
aPre-treatment statistically significant (P < 0.05) differences on bold font, and absence of pre-treatment comparison on italic font.
bStatistically significant (P < 0.05) changes on bold font, and absence of intra-group comparison on italic font.
cConcerning ΔG1 − ΔG2.