Source : MEDSCAPE
The therapeutic options that are currently available to treat acne scars include excision, punch excision, subcision, cryosurgery, dermabrasion, microdermabrasion, chemical peels, ablative lasers, nonablative lasers, fractional lasers, silicone sheeting compression, dermal fillers and an emerging technique known as skin needling.
Acne scarring is one of the most feared outcomes of acne lesions. Acne scars may become observable through two primary processes: a loss of scar tissue or an increase in collagen. The treatment of acne scars with lasers attempts to alter the end result of these processes. Ablative lasers attempt to do this by vaporizing the epidermis and part of the papillary dermis. The resultant healing that occurs 'smoothes out' the scar tissue. The CO2 laser has been found to be more effective than the Er:YAG laser, but is also associated with a higher incidence of side effects. According to Goodman et al., ablative lasers should be used for grade 3 acne scars, while nonablative lasers are indicated in grade 2 acne scars. Nonablative lasers are known to be less effective than ablative lasers, but they are also associated with less downtime and side effects. A relatively new laser technology, known as FP, uses zones of microthermolysis to injure the epidermis and dermis in a uniform manner, so that healing occurs in a controlled fashion. The studies exploring fractional lasers for acne scars have demonstrated somewhat encouraging results, and further study is required to establish their full clinical utility.
The therapeutic options that are currently available to treat acne scars include excision, punch excision, subcision, cryosurgery, dermabrasion, microdermabrasion, chemical peels, ablative lasers, nonablative lasers, fractional lasers, silicone sheeting compression, dermal fillers and an emerging technique known as skin needling.
Acne scarring is one of the most feared outcomes of acne lesions. Acne scars may become observable through two primary processes: a loss of scar tissue or an increase in collagen. The treatment of acne scars with lasers attempts to alter the end result of these processes. Ablative lasers attempt to do this by vaporizing the epidermis and part of the papillary dermis. The resultant healing that occurs 'smoothes out' the scar tissue. The CO2 laser has been found to be more effective than the Er:YAG laser, but is also associated with a higher incidence of side effects. According to Goodman et al., ablative lasers should be used for grade 3 acne scars, while nonablative lasers are indicated in grade 2 acne scars. Nonablative lasers are known to be less effective than ablative lasers, but they are also associated with less downtime and side effects. A relatively new laser technology, known as FP, uses zones of microthermolysis to injure the epidermis and dermis in a uniform manner, so that healing occurs in a controlled fashion. The studies exploring fractional lasers for acne scars have demonstrated somewhat encouraging results, and further study is required to establish their full clinical utility.
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