Dhurat Rachita S, Shanshanwal Sujit J S, Dandale Ameet L
Department of Dermatology, Lokmanya Tilak Municipal Medical College and General Hospital, Sion, Mumbai, Maharashtra, India.
J Cutan Aesthet Surg. 2017 Jul-Sep;10(3):145-149. doi: 10.4103/JCAS.JCAS_116_16.
Cosmetic deformities can result from various types of alopecia or even post hair transplantation procedures. Patients with such deformities seek aesthetically appealing longer-lasting options. Scalp concealers are commonly used by men and women to camouflage these deformities. Scalp micropigmentation (SMP) is one of the concealers recently gaining popularity.
SMP is a novel technique wherein microdot tattoos are placed in a stippling pattern to mimic hair follicles that are cut close to the scalp and various variables affecting its outcome were evaluated.
Forty-five subjects were recruited for the study. The various factors affecting outcome of SMP-angle of needle against the scalp, depth of needle into the scalp, time of the needle contact in scalp, speed of the rotor, resistance of scalp, color of pigment, viscosity of dye, needle number, needle thickness, and pattern of dot placement-were systematically studied in 15 patients through clinical photographs and trichoscopy. Ideal depth of pigment deposition was assessed through histopathological examination. After using these optimum variables, standardized SMP was performed in 30 patients with hair loss (3 patients with cicatricial and 27 patients with diffuse non-cicatricial alopecia). SMP was also used to create an aesthetically denser hairline. The outcome of the procedure was evaluated using standardized global photographs.
The ideal parameters were established to achieve standard reproducible results. There were great patient satisfaction and acceptance of the procedure. All the patients showed moderate to great improvement after the procedure with satisfactory scalp coverage. Adverse events were transient which were seen in the form of edema and redness.
SMP offers a non-medical, tattoo-based cosmetically appealing and effective "cover-up" that hides the unsightly conditions. The cosmetic tattoo placement creates an illusion of thicker hair.
各种类型的脱发甚至毛发移植术后都可能导致美容缺陷。有此类缺陷的患者寻求美观且持久的解决方案。男女通常使用头皮遮瑕产品来掩盖这些缺陷。头皮微色素沉着（SMP）是近来颇受欢迎的遮瑕方法之一。
SMP是一种新技术，通过点状纹身模拟贴近头皮切断的毛囊，并评估影响其效果的各种变量。
招募45名受试者参与研究。通过临床照片和毛发镜检查，对15名患者系统研究了影响SMP效果的各种因素——针头与头皮的角度、针头刺入头皮的深度、针头在头皮上的接触时间、转子速度、头皮阻力、色素颜色、染料粘度、针数、针的粗细以及点的排列方式。通过组织病理学检查评估色素沉积的理想深度。在使用这些最佳变量后，对30名脱发患者（3名瘢痕性脱发患者和27名弥漫性非瘢痕性脱发患者）进行了标准化SMP治疗。SMP还用于打造更美观浓密的发际线。使用标准化的全景照片评估该治疗的效果。
确定了理想参数以实现标准的可重复结果。患者对该治疗的满意度和接受度很高。所有患者在治疗后均有中度到显著改善，头皮覆盖效果令人满意。不良事件为短暂性的，表现为水肿和发红。
SMP提供了一种基于纹身的非医学美容方法，具有吸引力且有效，可掩盖难看的情况。美容纹身营造出头发更浓密的假象。
