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Today, an attractive smile is the vogue for many individuals. Gingival health and appearance are essential components for an attractive smile and removal of unsightly pigmented gingival is the need for a pleasant and confident smile. In some populations, gingival pigmentation seems to be a genetic trait and is irrespective of age and gender, hence gingival pigmentation is termed as physiologic or racial gingival pigmentation. Intraoral pigmentation is seen due to the presence of the fundamental pigment melanin that colors the tissues. Several treatment modalities have been suggested for gingival depigmentation. Many varying results have been observed, but the repigmentation has been documented to occur. The large variation in time of repigmentation may be related to the techniques used and the race of the patient. This case report demonstrates the probable cause of repigmentation where pigmentation has recurred limbs.

Aim:To overview the effectiveness of photodynamic therapy (PDT) along with different types of photosensitizers and the lasers associated with them.Background: Administration of drugs for oral infections and pathologies are accompanied with a lot of limitations like lack of patient compliance, microbial resistance in the biofilm, systemic side effects, failure on the antibiotics to act on non-perfused areas, allergy and the limitation of spectrum of microorganisms affected. To overcome this, an effective and an alternative therapy needs to replace the conventional treatment. Indians since ancient past have been using the extracts of Psoralea corylifolia which contains furocoumarins, given orally, and followed by exposure to sunlight in order to treat vitiligo. Thus, PDT was investigated in the past as a promising alternative if not replacement for the conventional treatment.

Lasers have been long introduced in dentistry. Today lasers are been used for Endodontics, Periodontics, Oral Surgery as well as restorative procedures. Here, we describe the effect of different wavelengths on the implant surface.