Sir,We read with interest the article entitled “An innovative cosmetic technique called lip repositioning” authored by Dr. Gupta et al.[1] in the October-December 2010 issue of the Journal of Indian Society of Periodontology.The authors performed the surgical procedure by repositioning the lip and limiting the retraction of the elevator smile muscles (e.g., zygomaticus minor, levator anguli, orbicularis oris, and levator labii superioris).[1] They present a case report with 6 months follow-up stating that this new technique is able to improve the gummy smile. Our main concern is about the results stability of this technique because resection of the levator labii superioris is short living with the return of the gummy smile.[2]Furthermore, the authors claimed prosthetics and periodontal possibilities as a possible way to correct gummy smile for dentists. In 2005 Dr. Polo[3] introduced a minimally invasive solution using the Botulinum toxin type A. This technique is performed injecting the Botulinum toxin intramuscularly under electromyographic guidance. This technique is a minimal invasive treatment possibility for patients with gummy smile due to hyperfunctional muscles even if with temporary results.[3]The same author performed a study on 30 patients presenting the same problem.[4] This study showed after 24 weeks effective and statistically relevant results when compared to baseline smiles. Although, gingival display gradually increased from 2 weeks post-injection to 24 weeks this technique showed average gingival display greater than baseline values.[4]While, the authors introduced an innovative and interesting technique for gummy smile further studies are necessary in order to draw adequate conclusions about the stability of the results.