Hand-book of dental anatomy and surgery : for the use of students and practitioners / by John Smith.

Date:
1871
Catalogue details

Licence: Public Domain Mark

Credit: Hand-book of dental anatomy and surgery : for the use of students and practitioners / by John Smith. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    the members of the permanent set. The most marked forms of irregularity seem to occur in the front part of the dental series; generally among the teeth anterior to the bicuspids. Sometimes the irregularity is confined to mere crowding and displacement of the teeth in one or other jaw; sometimes it leads to more per- ceptible deformity, such as projection of the ■under teeth beyond the upper, leading in this way to the patient being what is termed under- hung. The treatment of dental irregularity consists of two kinds,—first, that of providing sufficient space to accommodate the teeth in their regular order; and, second, that of forcing them into their natural situations when such space has been provided. The first step, then, being to obtain space for the displaced teeth, it generally becomes necessary for this purpose to extract one or more at some part of the mouth. The question is, which teeth to select for removal ? and the following rules may serve so far as a guide in this respect. 1st, Where the corresponding tooth of the temporary set is present, it of course is to be at once extracted; and where any of the temporary