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THE i:iciiTi: i:\rii ci:\tlr)-
297
"It the root canal has been vcr\- considt rahl\ cnhu<;cil h\
rhi- carious
process, so as to have rendered it necessarv to stop it, the root being,
nevertheless, still quite steady, one bores a small hok- in tin- had as deep
and as straight as possible, without, however, |Hnetraring farther down
than the root canal. 'I'he artificial crown
is then united to tin- root
l)\
a pivot in the manner 1 shall now describe."'
The method of appl\ ing pivot teeth is described with great accuracy
In it the author considers all the difl^"erent circumstances that ma\ present
themselves, and says, among other things, that if the root is still sensiti\e
to pain, one should apply the actual cauterv inside the canal,
liefore
fitting the artificial crown to the root. For fixing the jiivot inside the
artificial crown (which was generalh the crown of a human tooth),
Fauchard used a special cement made with gum lac, Venetian tur|Hntine,
and powdered white coral.
In the case of there not being any whole teeth to which the prosthetic
piece would be fixed, but only roots, Fauchard made two holes in it in
perfect correspondence with the canals of two roots, and fi.xed the pros-
thetic piece to these bv means of two p\ramidal screws.'
This method suggests in a certain wa\' the idea of bridge-work.
In Chapters XVII, XVIII, XXIV, and XXV, Fauchard describes
various methods tor the application of entire sets of false teeth, both upper
and lower, as well as double.
The author says that if ihe lower jaw is entireh toothless, a set of
teeth can be adapted thereto without the need of an\- special contri\ ance;
however, it is necessarv that the prosthetic piece should fit perfectlv, so
that the configuration ot the maxillarv arch and the irregularities of the
gum, finding themselves in complete correspondence with the piece itself,
may keep it steady in its place. The support offered b\ the tongue
interiorly, by the cheeks and the under lip exteriorly, contributes to keep
the artificial set stead\"; one can thus masticate as easih" with it as with
one's own teeth, especialh" it the teeth ot the upper jaw be still existing
and the individual be alread\' sufiicienth' used to the wearing of it.^
With regard to the application of an entire set of upper teeth, one learns
from Fauchard that although some attempt had been made in this direc-
tion before this time, the results had been ver\' unsatisfactorw He
relates that: "In 1737 a ladv of high rank, of about the age of sixt\-, who
had not lost an\- of her lower teeth, but was deprived entirely ot the upper
ones, applied to M. Caperon, dentist to the King, who was most able ui
his profession, in the hope that he might be able to furnish her mouth
with an upper set. But he said that, no tooth whatever being left m

' Vol. ii, p. 225. Vol. ii, p. 229.
' Chap, xvi, pp. 252, 255. * Vol. ii, chap, xvii, p. 260.
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