DHI FUE
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DHI refers to a different implantation technique used during FUE hair transplantation.
The grafts are first extracted using micromotor-assisted punches, just like in a standard FUE procedure. With this technique, there is no need to create prior incisions in the recipient area.
The grafts are placed into special implanter pens equipped with a hollow needle connected to a tube and plunger mechanism. These devices are commonly known as Choi implanters.
The grafts are gently inserted into the hollow needle positioned at the tip of the implanter pen.
The needle is then inserted into the scalp at an angle of 40–45 degrees, creating the incision and implanting the graft simultaneously by pressing the plunger.
During a DHI procedure, typically 2 to 6 Choi implanters and approximately 15–16 needles are used simultaneously. The needles come in various sizes to match the follicular unit grafts.
The main advantage of the implanter method is the ability to implant more grafts per cm2, resulting in a denser transplantation. This is particularly beneficial for the frontal hairline.
The major disadvantage of DHI is its higher cost compared to other hair transplantation methods. Additionally, incorrect placement of grafts into the implanter pen or bending during implantation may cause trauma to the follicles and reduce graft survival.
Sapphire FUE or DHI-FUE?
Both Sapphire FUE and DHI-FUE offer similar advantages in terms of density and natural front hairline results for mild hair loss (Grade 1–3).
In our clinic, Sapphire FUE does not involve extra cost and is routinely used in suitable candidates.
Unlike DHI, Sapphire FUE eliminates the risk of follicle damage during loading and implantation. Considering the additional cost of DHI for similar outcomes, Sapphire FUE is often preferred. However, DHI-FUE remains available for patients who specifically request it.
Sapphire-tip FUE provides the same dense implantation as DHI.
The Sapphire tip has proven its effectiveness in achieving maximum density at the front hairline and even creating a dense vertex whirl, with results comparable to DHI implanters.
Yesim Karaahmet is a hair transplant specialist based in Istanbul, with more than 20 years of professional experience in hair transplantation. Throughout her career, she has worked extensively in the field of hair restoration and has experience with both FUT and FUE techniques.
Her professional work has been featured in Turkish media for many years. Earlier in her career, she was professionally known as Yesim Alkan. Yesim Alkan and Yesim Karaahmet are the same person. Following a surname change, she has continued her professional career under the name Yesim Karaahmet.
Under both names, she has built many years of experience in hair transplantation in Istanbul and continues to focus on natural-looking, carefully planned hair restoration procedures.
She is also a long-standing member of FUE Europe and follows developments in modern hair restoration through international professional platforms and conferences.
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