736 



Hibernation — C out in ued 



salivary protease, 294 



space travel, 285 



stress, 286 



summary, 295 



teeth, 285 



tooth structure, 285 



torpor, 285 

 High resolution microradiographv, 



131 

 Hippocamchis 



antisensis, 349 



hisiilcus, 349 

 Histochemistry, in vitro caries, 233 

 Histocytes 



osteoclast precursors, 490 



resorption, 490 

 Histoenzymologic methods, 516 

 Histogenesis, antlers, 344 

 Histopathological characteristics, den- 

 to-alveolar destruction, 145 

 Histopathology 



dental erosion, 108 



exhumed teeth, 120 

 Histophysical studies 



bone cells, 471 



bone resorption, 471 

 Histophysics of bone resorption, sum- 

 mary, 491 

 Hog deer, antlers, 347, 348 

 Homeostatic control 



bone mineral, 371 



calcium ion concentration, 379 

 Homoiotherm, 286 

 Horizontal grooves, erosion of teeth, 



102 

 Hormones 



see also separate entries for individ- 

 ual hormones 



antler shedding, 353, 354, 360 

 Horns, antelope, keratinized sheaths, 



339, 347 

 Horny periostracum, 9 

 Host versus teeth, 264 

 Hotspots, haversian systems, 377 

 Hourglass appearance, erosion of 



teeth, 102 

 Houses of ivory, 92 



SUBJECT INDEX 



Howship's lacunae, 94, 96 



deciduous teeth, 144, 334 



giant cells, 520 

 Kuemul, antlers, 349 

 Human growth hormone, 413 



osteoporosis treatment, 400 

 Hydrated tricalcium phosphate, 381 

 Hvdrogen bonding, 381 

 Hydrogen ion concentration 



see also pH 



enamel dissolution, 237 



snail boring organ, 65 

 Hydroids, 42 

 Hvdrolytic enzymes, osteoclast, 511, 



512 

 Hydroxy group, chelating activity, 



167 

 Hydroxyapatite, 79, 86, 219, 221, 253, 

 381 



phosphate group, 256 



reaction with acid, 249 

 Hydroxyapatite crystals, etching, 62 

 Hydroxyapatite surface, reaction prod- 

 ucts, 254 

 Hydroxyethyl cellulose, 131, 133, 218, 



223, 224, 233 

 Hydroxyproline 



bone matrix, 426 



collagen pool, 673 



metamorphosis, 669 



resorbing calvaria, 626 



ultrafiltrable, 572 



urinary excretion, 425 

 Hydroxyproline removal, peritoneal 



lavage, 553 

 Hyelaphus porcinus, 347, 348 

 Hvperactivity, oral soft tissue, 100 

 Hyperadrenal corticoidism, 426 

 Hypercorticoidism, osteoporosis, 429 

 Hyperemia, antler shedding, 341 

 Hyperfunction 



alveolar bone, 299 



mandibular incisors, 309 

 Hypermineralized bone, 402 

 Hyperosteoclasis, 432 

 Hyperparathyroid animals 



diploic spaces, 485 



resorption, 485 



