26 June 2020: Clinical Research
A Prospective Study Comparing Adolescent and Post-Adolescent Periods Regarding Effects of Activator Appliance in Patients with Class II Mandibular Retrognathia by Using 3dMDface Analysis and Cephalometry
Esra Yüksel Coşkun 1BEF* , Elçin Esenlik 2ACDGDOI: 10.12659/MSM.921401
Med Sci Monit 2020; 26:e921401
Table 5 Three-dimensional photogrammetry linear, angular and volumetric measurements at T0 and T1 time points and ıntergroup comparisons.
| Three-dimensional photogrammetry measurements | Adolescent group | Post-adolescent group | Difference | |||||
|---|---|---|---|---|---|---|---|---|
| T0χ̄±Sχ̄ | T1χ̄±Sχ̄ | T1-T0p | T0χ̄±Sχ̄ | T1χ̄±Sχ̄ | T1-T0p | p | ||
| Linear measurements | Anterior Facial Height (mm) | 105.85±1.67 | 110.44±1.81 | * | 110.88±1.52 | 113.35±1.44 | * | # |
| Lower Anterior Facial Height (mm) | 61.79±0.98 | 64.77±1.18 | * | 62.10±1.13 | 64.43±0.34 | * | NS | |
| Lip Width (mm) | 42.43±0.96 | 43.02±0.75 | 45.89±1.04 | 46.69±0.87 | NS | NS | ||
| Upper Lip Length (mm) | 21.23±0.84 | 20.98±0.90 | 20.16±0.91 | 22.20±0.88 | NS | NS | ||
| Lower Lip Length (mm) | 41.09±0.84 | 44.23±0.90 | * | 42.07±0.91 | 43.54±0.88 | * | NS | |
| Nose Width (mm) | 31.26±0.87 | 31.94±0.91 | * | 32.48±0.82 | 32.63±0.84 | NS | NS | |
| Chin Height (mm) | 25.13±0.62 | 26.44±0.85 | 25.33±0.80 | 26.00±0.56 | NS | NS | ||
| Nose Height (mm) | 46.96±0.87 | 48.11±0.91 | * | 51.97±0.67 | 52.13±0.68 | NS | # | |
| CP-Me (mm) | 5.12±0.89 | 7.68±0.77 | * | 6.00±0.68 | 8.72±0.92 | * | NS | |
| CP-Pg (mm) | 14.43±0.93 | 16.75±0.84 | * | 16.04±0.64 | 17.69±0.63 | * | NS | |
| CP-Sl (mm) | 14.37±0.83 | 17.40±0.57 | * | 14.53±0.59 | 16.47±0.76 | * | NS | |
| AP-Me (mm) | 98.34±1.77 | 100.99±1.67 | * | 102.28±1.39 | 104.04±1.36 | * | NS | |
| AP-Pg (mm) | 86.83±1.71 | 89.18±1.66 | * | 89.87±1.18 | 91.00±1.22 | * | NS | |
| AP-Sl (mm) | 75.22±1.50 | 77.30±1.33 | * | 78.76±1.39 | 81.19±1.46 | * | NS | |
| Angular measurements | Soft Tissue Convexity Angle (°) | 159.09±0.90 | 160.43±0.91 | * | 158.89±1.17 | 160.40±0.99 | * | NS |
| Total Facial Convexity Angle (°) | 129.75±0.99 | 131.42±0.95 | * | 128.79±0.72 | 130.21±0.49 | * | NS | |
| Upper Lip Angle (°) | 99.84±1.86 | 102.69±1.41 | 103.98±1.32 | 104.10±1.20 | NS | NS | ||
| Lower Lip Angle (°) | 120.43±1.66 | 116.87±1.37 | * | 119.54±1.75 | 116.75±1.59 | * | NS | |
| Labiomental Angle (°) | 126.22±3.88 | 136.97±3.00 | * | 121.27±3.25 | 131.13±2.44 | * | NS | |
| H Angle (°) | 17.16±0.83 | 14.80±0.94 | * | 16.57±1.06 | 14.33±0.77 | * | NS | |
| Nasolabial Angle (°) | 127.60±2.37 | 128.94±1.78 | 128.78±2.46 | 130.67±2.52 | NS | NS | ||
| Volumetric measurements | Mandibular Volume (cc) | 1.10±0.18 | 1.68±0.11 | * | 1.94±0.30 | 2.68±0.23 | * | NS |
| Total Lip Volume (cc) | 0.91±0.15 | 0.62±0.08 | * | 0.89±0.11 | 0.54±0.10 | * | NS | |
| χ̄ – mean value; S – standard error; # Adolescent difference > Post-adolescent difference; NS – non-significant; * p | ||||||||