\dɛntˈɪʃən], \dɛntˈɪʃən], \d_ɛ_n_t_ˈɪ_ʃ_ə_n]\
Definitions of DENTITION
- 2010 - New Age Dictionary Database
- 1913 - Webster's Revised Unabridged Dictionary
- 2010 - Medical Dictionary Database
- 1919 - The Winston Simplified Dictionary
- 1920 - A practical medical dictionary.
- 1898 - Warner's pocket medical dictionary of today.
- 1899 - The american dictionary of the english language.
- 1894 - The Clarendon dictionary
- 1919 - The Concise Standard Dictionary of the English Language
- 1914 - Nuttall's Standard dictionary of the English language
- 1846 - Medical lexicon: a dictionary of medical science
- 1898 - American pocket medical dictionary
- 1916 - Appleton's medical dictionary
- 1871 - The Cabinet Dictionary of the English Language
- 1790 - A Complete Dictionary of the English Language
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By Oddity Software
By Noah Webster.
By DataStellar Co., Ltd
By William Dodge Lewis, Edgar Arthur Singer
By Stedman, Thomas Lathrop
By William R. Warner
By Daniel Lyons
By William Hand Browne, Samuel Stehman Haldeman
By James Champlin Fernald
By Nuttall, P.Austin.
Teething, Dentitio, Dentitis, Odontophyia, Odontiasis, Odontosis, from dentire, (dens, dentis, 'a tooth,') 'to breed teeth.' The exit of the teeth from the alveoli and gums; or rather the phenomena which characterize the different periods of their existence. The germs of the first teeth, dentes lactei or milk teeth, (F.) dens de lait, are visible in the foetus about the end of the second month; and they begin to be ossified from the end of the third to that of the sixth month. At birth, the corona of the incisors is formed, but that of the canine is not completed; and the tubercles of the molares are not yet all united. Gradually the fang becomes developed; and at about six or eight months begins what is commonly called, the first dentition, Odontia dentitionis lactantium. The two middle incisors of the lower jaw commonly appear first; and, some time afterwards, those of the upper jaw; afterwards, the two lateral incisors of the lower jaw; and then those of the upper, followed by the four anterior molares; the canine, or eye-teeth, at first, those of the lower, and, afterwards, those of the upper jaw, next appear; and, subsequently and successively, the first 4 molares -2 above and below, 1 on each side. The whole number of the primary, temporary, deciduous, shedding or milk-teeth, (dentes temporarii,) (F.) Dents de lait, is now 20. The second dentition or shedding of the teeth odontia dentitionis puerilis, Dedentition, begins about the age of 6 or 7. The germs or membranous follicles of these second teeth -to the number of 32 -as well as the rudiments of the teeth themselves, are visible, even in the foetuf, with the exception of those of the small molares, which do not appear till after birth. They are contained in alveoli of the same shape as those of the first dentition. Their ossification commences at from 3 to 6 months after birth, in the incisors and first molares; at eight or nine months, in the canine; about three years, in the molares; 3 (1/2) in the second great molares, and about 10 years in the last. As the alveolus of a new tooth becomes gradually augmented, the septum between it and that of the corresponding milk tooth is absorbed, and disappears. The root of the milk tooth is likewise absorbed; its corona becomes loose and falls out, and all the first teeth are gradually replaced by the permanent teeth, Dentes serotini. This second dentition becomes necessary in consequence of the increased size of the jaws. The new teeth have neither the same direction nor the same shape as the old; and they are more numerous, amounting till the age of 25, (sooner or later,) to 28. About this period, a small molaris appears at the extremity of each jaw, which is called Dens sapientioe or wisdom tooth, wit tooth, Dens serotinus, ,Dns sophroreticus, D. sophronista, D. sophronister, (F.) Arriere dent. Dent de sagesse, making the whole number of permanent teeth 32. The eruption of the permanent teeth is remarkable for its general regularity; so that it constitutes an important means for ascertaining the age of the individual during the early period of life. The teeth of the lower jaw precede by few weeks those of the upper. During the period of dentition, that is, of the first dentition, the infant is especially liable to disease;- the irritation, produced by the pressure of the tooth on the superincumbent gum, sometimes occasioning pyrexia, convulsions, diarrhoea, &c., which symptoms are often strikingly relieved by a free division of the distended gum. This disordered condition is called Teething, Odontia dentitionis, Odontiasis, Odontalgia dentitionis, Odaxismus.
By Robley Dunglison
By Willam Alexander Newman Dorland
By Smith Ely Jelliffe
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