["Skin rejuvenation" by non-ablative laser and light systems. Literature research and overview]

Author: Grema H, Raulin C, Greve B

Author affiliation: Laserklinik Karlsruhe, Kaiserstrasse 104, 76133 Karlsruhe.

Publication date & source: 2002.06, Hautarzt., 53(6):385-92.

Publication type: Review; Review, Tutorial

Currently, ablative laser therapy (with CO2/Er:YAG lasers) and deep chemical peeling are effective and promising methods of skin rejuvenation. The induction of collagen synthesis was observed after peelings with trichloroacetic acid or phenol as well as after treatments with the CO2 laser. In past years, the undesirable side effects and risks of these methods have led to intensified research in the fields of non-ablative facial rejuvenation and subsurfacing by means of ablative laser systems and intense pulsed light systems. The objective is to achieve selective, heat-induced denaturalisation of dermal collagen that leads to subsequent reactive synthesis but does not damage the epidermis. Recently, the results of numerous clinical and histological studies have indicated that these new technologies are successful. After critical review and assessment of current literature, we can say that in terms of their efficacy, non-ablative methods are not a comparable alternative to ablative skin resurfacing.

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