(DHI) Direct Hair Implant Technique
there are several hair transplant methods. Transplant area and person’s
requests determine the method. Currently DHI (CHOI PEN), FUE, Micro FUE,
Sapphire FUE and Percutaneous FUE are the active methods. Besides these, FUT is
a very old method and not being used actively.
explain the DHI (Direct Hair Implant) technique that known as pen method in the
past. First of all, in the DHI method hair follicles are transferred by an
implanter pen named as Choi Pen. These are not different treatment methods. One
is the name of method, the other one is material that being used in the method.
transplant method came out at the Kyungpook National University. At this place
it is firstly applied on straight and thick hair’s characteristic and it has
been successful. However it has not been successful on curly, wavy and thin
hair. Afterwards, Choi Pens’ diameters are widened a little bit more and
produced according to general hair types. Today’s active choi pens are ranging between
0.8 -1.2 mm. Choi pen is generally working like a push pen. It has a needle on
its tip, which has 21G x ½ thickness and size, and there is a metal at the tip of the needle
to press and locate the follicle to tissue. This needle has a space shaped like
a straight strip. That space is being used for planting the hair follicles.
before the operation are similar to other transplant methods in DHI method.
10cc blood is taken from the person and blood test is done before the
operation. Also, taken blood sample is used for hair treatment. Operation is
begun with determining the right local anesthesia method and then the area is
ready for the hair follicle extraction.
follicles are taken from the donor area by Follicular Unit Extraction in DHI
method. So far every step is similar to the other transplant methods but from
now on it starts to differ.
follicles that are taken from the donor area are placed into the choi pen by
the help of a special forceps. Thus hair follicles that are taken from the
donor area are ready for transfer. This step is actually the most significant
step in DHI method. Because when the
hair follicles that are going to be transplanted get damaged while placement,
there will be a problem with the hair growth process even all the procedures
are done correctly. Therefore experts in their fields should do the operation,
it is really important.
thing that makes DHI different from other methods is creating the holes and transplanting
the follicles is done at the same time. In all the other hair transplant
methods hair follicles are not directly transferred to the needy area. To make
that happen, micro cuts are done on the needy area, in other words holes are
created. Afterwards, hair follicles are placed into these created holes. These
two steps are done at the same time in the DHI method. While choi pen’s tip is
doing the micro cuts, placed hair follicles are transferred. This method can be
considered as an updated version of percutaneous hole creating technique. In
percutaneous hole creating technique, a similar tip creates the holes. On the
next step transplant is done.
to person’s requirements, density and number of hair follicles change.
Transplanted hair’s angle should be between about 30-40 degrees to balance
between existing hair and transplanted ones. As you can see DHI method has more
procedures than the normal hair transplant methods so number of hair follicles
that will be transplanted in one session is different from the other hair
transplant methods. Generally in DHI method, 1500-200 grafts are transferred in
one session. Sure, if the person needs higher numbers session number increases
There is no
need to cut the whole hair in DHI method, because high numbers can’t be
transplanted in one session. Hair follicles are taken by Follicular Unit
Extraction method between the hair and they are transferred to the needy area
without cutting the hair. People are attracted because of that advantage.
People can get back to their routine lives faster.
After the operation people go back to their hotels or their homes and rest in DHI method. On the second day original hair gets checked if there are hair follicles and scalp on the transplant area. After checking, bandages are removed. On the third day special washing is carried out. In the upcoming days procedures and growth time of the hair are same as the other hair transplant methods.
Istanbul Hair Center is a best hair transplant company in Turkey, which has accomplished DHI Method Implementations, since over 20 years. We wish to see you among our happy patients.
Tel: +90 (212) 343 13 10
Mobile:+90 538 485 63 18
Address: Build No. 27/8 2rd Floor, Esentepe Street Şişli, Istanbul-Turkey