Table 1 Comparison of ∠a (36), ∠a (46), ∠b (36) and ∠b (46) in different age groups
From: Influence of bone anatomical morphology of mandibular molars on dental implant based on CBCT
Group | ∠a (36) | ∠a (46) | ∠b (36) | ∠b (46) |
|---|---|---|---|---|
Aged 18–29 (n = 64) | 2.12 ± 7.28 | 3.67 ± 6.04 | 3.87 ± 8.10 | 1.57 ± 8.23 |
Aged 30–39 (n = 53) | 1.92 ± 5.71 | 2.20 ± 5.75 | 4.48 ± 9.36 | 3.90 ± 9.63 |
Aged 40–49 (n = 52) | 2.42 ± 5.55 | 3.46 ± 6.23 | 5.16 ± 8.09 | 2.64 ± 9.05 |
Aged 50–59 (n = 22) | 1.52 ± 5.63 | 3.35 ± 5.02 | 4.26 ± 8.02 | 4.65 ± 7.68 |
Aged 60–69 (n = 10) | − 0.06 ± 6.11 | 2.29 ± 4.39 | 3.67 ± 6.58 | 4.92 ± 9.94 |