The Physiology of the Teeth popularly applied to their care and preservation, etc

Cover
 

Ausgewählte Seiten

Andere Ausgaben - Alle anzeigen

Häufige Begriffe und Wortgruppen

Beliebte Passagen

Seite 28 - The first permanent molares usually pierce the gum before the loss of the temporary central incisores, and their appearance may be considered as indicative of the approaching change. The following are about the medium periods at which the different permanent teeth are generally cut, but so irregular are they in this respect, that comparatively little dependence can be placed on such a statement. Those of the lower are here indicated, and they most commonly precede the upper by about two or three...
Seite 60 - Every one knows what is the usual result of the existence of dead roots in the jaw, when they have been left either by accident in an attempt at extraction, or by the gradual decay of the crown ; and it is surely too much to adopt as an useful operation, that which every one deprecates as an accidental occurrence. If, on the other hand, — as indeed it frequently happens, — the object aimed at be not fulfilled, the case is placed in a situation incomparably worse than before, the nerve being still...
Seite 33 - By the time that these teeth have become loosened, the permanent ones, in their natural course of the change, are ready to fall into their place and thus the correct form of the jaw is preserved, but, if the temporary teeth be removed before the permanent ones are so far advanced as to be ready to occupy their situation the support of the alveolar processes being thus lost, the arch of...
Seite 72 - It is of great importance that you should know how to preserve false teeth, for in the absence of proper attention they are soon destroyed, and still sooner become offensive. The wearer often seems singularly unconscious of the offensive odour...
Seite 60 - It is an operation irrational in its principle, often useless in its immediate effects, and in its consequences most pernicious. It has always appeared to me to place the operator in a dilemma of evils. The object, I presume, is to cut through, or, more properly, to break off the tooth so low as to remove the whole of the crown, including the cavity which contains the pulp or membrane. If this object be effected, the consequence is that the dead roots remain in the alveoli ; and these, if not immediately...
Seite 74 - Artificial teeth cannot be too well kept, but they can be very easily, and frequently are, too ill kept. If the base be gold, and the teeth mineral, still they should be well cleaned each day : if the base be gold, and the teeth dentine, there is yet greater need of frequent and careful cleaning. If the base be of denSelected Articles.
Seite 73 - The surfaces of the teeth (whatever be their kind) should be well brushed with a little precipitated chalk, once or twice a, day ; and, after brushing, rubbed with a dry soft towel, or handkerchief, or a piece of wash-leather. By these means a beautifully polished surface may be maintained.
Seite 7 - Due mastication being thus essential to healthy digestion, the Creator, as if to insure its being adequately performed, has kindly so arranged, that the very act of mastication should lead to the gratification of taste — the mouth being the seat of that sensation. That this gratification of taste was intended, becomes obvious when we reflect that, even in eating, Nature makes it our interest to give attention to the process in which we are for the time engaged.
Seite 25 - If, therefore," observes Dr. Ashburner, " in a child's mouth, or in the mouth of an older person, a due process of absorption does not go on when it ought, — if a proper growth does not take place as it should do ; and consequently, if certain teeth do not appear at their correct epochs — or another set fall out when their proper period arrives, — one or more of certain serious consequences may supervene.
Seite 60 - I presume, to cut through, or rather break off the tooth, so low as to remove the whole of the crown, including the cavity which contains the pulp or membrane. If this object be effected, the consequence is, that the dead roots remain in the alveoli; and these, if not immediately productive of pain, may yet be expected to occasion much future suffering, as extraneous irritating bodies. Every one knows...

Bibliografische Informationen