**5. The use of PRP in medicine and odontology**

Platelet-rich plasma has been used in several medical and dental areas. The platelet-rich plasma has approximately 1 million/ml platelets [62], and it has been used to the revitalization of necrotic pulp teeth [63], in periodontitis [64], in revascularization of young teeth [65], and in other oral conditions [66].

Platelet-rich plasma has been used in orthopedic therapies like cartilage repair [67], also in bone regeneration, and in tendons, ligaments, and articular lesions [68].

In dermatology, PRP has been used for wound healing of acne scars [69], vitiligo [70], venous ulcers [71], alopecia [72], skin rejuvenation [73], and some cases of lichen sclerosus [74].

In gynecology, there are studies where PRP had been used in cases of infertility [75], in uterine prolapse [76], in inducing endometrium proliferation [75], and in scars of cesarean sections [77].

It has also been used in otolaryngology [78], in urinary diseases [79], and in other medical specialties.
