Editorial. Hillischer's Dental Notation. [Volume: 27, Issue: 4, April, 1885, pp. 253-255]

EDITORIAL.

253

ROYAL COLLEGE OF DENTAL SURGEONS OF ONTARIO,
The sixteenth annual examination of the Royal College of
Dental Surgeons of Ontario was completed on March 6, 1885. No
commencement exercises are held. The examinations being entirely
written, no thesis is required.
There were twenty-four students attending lectures throughout
the session.
Certificates of license to practice dentistry in Ontario and the
title of L.D.S. were granted to the following gentlemen, viz.:
NAME. RESIDENCE. NAME. RESIDENCE.
John F. Adams.....................Toronto. G. A. Teeple.................Amherstburg.
A. H. Cheeseborough..............Toronto. C. G. Thompson............ Pictou.
R. F. Morrow.......................Lindsay. A. H. W eagant..............Cornwall.
W. W. Patterson..................Paris.
EDITORIAL.
HILLISOHER'S DENTAL NOTATION.
Dr. H. Th. Hillischer, of Vienna, Austria, in a communication to
the DENTAL COSMOS, proposes for general adoption a system of symbols for the graphical designation of the human teeth in their several positional relations after eruption, providing also for the record
of defects in, operations on, substitutes for, or malpositions of individual teeth.
For the permanent teeth, four groups of eight numerals are arranged as follows:
8,7.,6.,5.,4,3,2., 1* 1, 2,' 3, 4, 5, 6, 7, 8
8-, 7,6,5,4 3., 2,1 *1,2,*3, 4, 5, * 6, 3 7, 8
The respective teeth of the upper or lower jaw are indicated by
the position of the numerals above or below the horizontal line, and
their situation relative to the median line is shown by points on the
median-line side of the figures.
For instance, 1 ~ represents the superior right central, and ~ 2 is
the symbol of an inferior left lateral. It is mnemonically easy to
remember that a figure above the line stands for an upper tooth, and
a figure below the line for a lower tooth; while the right side of the
median line of both jaws is indicated by a point on the right side of
a figure, and the left by a point on its left side.
5 *, 3 is a group of symbols representing the superior right
6, 4 second bicuspid, and left cuspid, the inferior right first
molar and left first bicuspid in their normal positions and conditions.
A carious cavity, defect, filling, or substitute may be denoted by