Table 2.
Best correlation values between teeth (FDI) and Kvaal dental ratios with age
| Tooth numeration FDI (Federation Dentaire International) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Author | Country | 11/21 | 12/22 | 15/25 | 32/42 | 33/43 | 34/44 | 13/23 | 3 Max teeth | 3 Man teeth | 6 teeth |
| Kvaal et al. [1] | Norway | P | B | A | A | A | A | - | - | - | - |
| Kolltveit et al. [34] | Caucasian | R | B, C | B | R | R | A | - | - | - | - |
| Bosmans et al. [21] | Belgium | A | A | A | A | B | A | - | - | - | - |
| Landa et al. [10] | Caucasian | - | - | - | R | C | B | - | - | - | - |
| Sharma and Srivastava [25] | India | C | C | C | C | P | P | - | - | - | - |
| Saxena et al. [24] | India | - | - | - | - | - | - | C | - | - | - |
| Erbudak et al. [14] | Turkey | R | B | R | P | A, B | B | - | - | - | P |
| Limdiwala and Shah [22] | India | - | - | - | - | - | - | - | A | B | B |
| Misirlioglu et al. [26] | Turkey | - | - | - | B | C | C | C | - | - | - |
| Patil et al. [15] | India | B, C | - | - | - | - | - | - | - | - | - |
| Karkhanis et al. [16] | Australia | C | C | A | A | P | A | - | - | - | - |
| Mittal et al. [23] | India | A | C | C | A | C | B | - | - | - | - |
| Marroquin Penaloza et al. [31] | Malaysia | A | B | - | - | - | - | B | - | - | - |
| Marroquin Penaloza et al. [30] | Australian | B | C | B | B | C | C | - | - | - | - |
| Roh et al. [12] | Korean | B | C | B | B | T, A | B | - | B | ABC | B |
| Li et al. [9] | China | B | B | R | P | A, B | B | - | B | B | B |
| Akay et al. [11] | Turkey | B | - | - | - | - | - | - | - | - | - |
| Hisham et al. [28] | Malaysia | B | B, C | P | C | C | C | - | - | - | - |
| Hisham et al. [33] | Malaysia | A, B | C | B | B | B | B | - | - | - | - |
| Li et al. (2020) | China | - | - | - | - | R | - | B | - | - | - |
| Chandan et al. [27] | India | A | A | B | A | B | A | - | - | - | - |
| Vossoughi et al. [32] | Iran | A | A | B | |||||||
P ratio between length of pulp and root, T ratio between length of tooth and root, R ratio between length of pulp and tooth, A ratio between width of pulp and root at CEJ (level A), B ratio between width of pulp and root at midpoint between level C and A (level B), C ratio between width of pulp and root at mid-root the level (level C)