Note (37) — CANTO FOURTH.

As great disadvantages frequently arise when teeth are decayed, from their crowding against each other, it becomes expedient, with a view to stop the progress of incipient disease, to remove portions from their sides by means of a file; but, if this operation be not performed before considerable parts are decayed, it must not be expected to afford lasting benefit. The incisors and canine teeth may be filed with the greatest probability of success; but the bicuspides and molares have such large surfaces, that caries often extends itself by far too deep before it is observed, to be effectually removed by the file. Little advantage can be expected from filing, unless the whole diseased part be effectually removed.

It is proper to observe, that there are some teeth, which, although attended to at an early period, are but little benefitted by the operation, either from some original defect in their organization, or certain peculiarities of constitution: but this is, by no means, commonly the case; and the instances of its proving essentially serviceable are so innumerable, that it may be recommended with the highest confidence of success.