Figure 7-3.Typical enclodontic box kit with supplies.
or "H-type" is a generic classification based on a
manufacturing process and does not apply to any
single design or line of instruments.
Numerical size designations and color coding are
the same for both file types. Sizes begin with size 8 and
continue through size 140. Files come in different
lengths, including 19 mm, 21 mm, 25 mm, and 31 mm.
K-Type. The K-type is tapered and pointed,
with tight spiral cutting edges arranged so that the
cutting occurs on either a pushing or pulling stroke.
They are used to enlarge the root canal by a rotary
cutting or abrasive action. When pulling the
instrument out of the tooth, the cutting edges scrape
against the wall, gouging and removing dentin in a
filing action. When the instrument is turned in a