1995
DOI: 10.1002/jmor.1052260304
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On the geometry and mechanics of tooth position in the white shark, Carcharodon carcharias

Abstract: The teeth of captured specimens, of prepared museum specimens, and of high-speed videotape images of the white shark, Carcharodon carcharias, were compared with respect to (1) deviation of each tooth from the animal's midline and (2) the crown angle of the functional teeth along the jaw margin. Tooth position was measured either directly using a meter stick apparatus or derived from tracings of the video footage. Tooth positions were not statistically unique in any region of the upper or lower jaw but demonstr… Show more

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Cited by 24 publications
(22 citation statements)
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“…This ability has been investigated previously in some carcharhiniform and lamniform sharks (Frazzetta and Prange, 1987;Frazzetta, 1988Frazzetta, , 1994Powlik, 1995). Manual manipulation of the intermandibularis muscle was shown to produce tension in the DL substantial enough to prevent the teeth in the lower jaw from moving in these sharks (Frazzetta, 1994).…”
Section: Tooth Mechanicsmentioning
confidence: 94%
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“…This ability has been investigated previously in some carcharhiniform and lamniform sharks (Frazzetta and Prange, 1987;Frazzetta, 1988Frazzetta, , 1994Powlik, 1995). Manual manipulation of the intermandibularis muscle was shown to produce tension in the DL substantial enough to prevent the teeth in the lower jaw from moving in these sharks (Frazzetta, 1994).…”
Section: Tooth Mechanicsmentioning
confidence: 94%
“…The teeth of many chondrichthyans reside in a thick connective tissue sheet (dental ligament, DL) and do not directly contact the underlying surface of the jaws. The loose attachment allows teeth to move in both sagittal and frontal planes, a feature also found in many actinopterygian fishes (Fink, 1981;Frazzetta, 1994;Powlik, 1995). Frazzetta and Prange (1987) and Powlik (1995) hypothesize that loose attachment allows teeth of carcharhinid sharks and Carcharodon carcharias (great white shark) to become more erect during prey capture, facilitating tooth penetration.…”
mentioning
confidence: 97%
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