| Vibration | Band position (cm−1) | |||||||||||||||
| Dentin | Enamel | |||||||||||||||
| Air | Argon | Air | Argon | |||||||||||||
| 25˚C | 400˚C | 800˚C | 1000˚C | 25˚C | 400˚C | 800˚C | 1000˚C | 25˚C | 400˚C | 800˚C | 1000˚C | 25˚C | 400˚C | 800˚C | 1000˚C | |
| O-P-O ν2 | 469 | 467 | 475 | 470 | 470 | 468 | 470 | 472 | 468 | 471 | 470 | 475 | 476 | 473 | 470 | 471 |
| O-P-O ν4 | 557 559 | 559 601 | 548 562 598 | 547, 564 599 | 557 599 | 559 601 | 564 599 | 545, 561 599 | 561 600 | 561 599 | 547 563 599 | 546, 564 599 | 560 600 | 560 599 | 561 599 | 561, 599 |
| OH | - | - | 630 | 630 | - | - | 631 | 630 | - | 629 | 629 | 630 | - | 629 | 629 | 629 |
| O-C-O (B-type) | 872 | 872 | - | - | 873 | 873 | - | - | 872 | 872 | 872 | - | 873 | 872 | -D | - |
| O-C-O (A-type) | 877 | 878 | 879 | 879 | 876 | 877 | 879 | 879 | 879 | 880 | 879 | 877 | -D | 879 | 876 | 878 |
| P-O (β-TCP) | - | - | 946 | 946 | - | - | 947 | 945 | - | - | - | - | - | - | - | - |
| P-O | 961 | 962 | 968 | 962 | 959 | 960 | 962 | 960 | 959 | 959 | 959 | 958 | 958 | 959 | 958 | 958 |
| P-O ν3 (β-TCP) | - | - | 982 | 982 | - | - | 985 | 982 | - | - | 982 | 982 | - | - | 982 | 980 |
| P-O ν3 (β-TCP) | - | - | 1014 | 1014 | - | - | -D | 1012 | - | -D | 1015 | 1015 | - | 1015 | 1012 | 1013 |
| P-O ν3 | 1010 | 1014 10,180 | 1024 1087 | 1025 1088 | 1013 | -D | 1026 1088 | 1017 1088 | 1019 1081 | 1020 1085 | 1024 1085 | 1026, 1085 | 1022 1082 | 1020 1086 | 1020 1085 | 1017 1085 |
| P-O ν3 (β-TCP) | - | - | 1120 | 1120 | - | - | -D | -D | - | - | - | - | - | - | - | - |
| C-O | (B)1411 (A)1444 (V)1467 | (B)1413 (B)1415 (V)1470 | D- | - | (B)1412 (A)1441 (V)1468 | (B)1412 (A)1447 1501 1538 | (A)1460 (A)1541 | - | (B)1411 (A)1452 | (B)1413 (A)1454 | (B)1411 (A)1456 (A)1547 | (A)1456 (A)1545 | (B)1409 (A)1454 | (B)1411 (A)1456 | (B)1411 (A)1456 | (B)1413 (A)1459 (A)1545 |