Two skin folds in the face
Thenasolabial folds , commonly known as "smile lines "[ 1] laugh lines ",[ 2] [self-published source arefacial features . They are the twoskin folds that run from each side of thenose to the corners of themouth . They are defined by facial structures that support thebuccal fat pad .[ 3] cheeks from theupper lip . The term derives fromLatin nasus labium lip ". Other people suggest the termmelolabial fold ,[clarification needed [ 4] [ 5] nasolabial sulcus .
Withageing the fold may grow in length and depth.[ 6] Dermal fillings may be used to replace lost fats andcollagen in this facial area.[ 7] [ 8]
^ Burgess, Cheryl M., ed. (2005).Cosmetic Dermatology ISBN 9783540273332 . Retrieved20 February 2015 . ^ Vennemeyer M. D., Michael D (22 December 2010).Plastic Surgery Myths Dispelled ISBN 9781456835958 . Retrieved20 February 2015 . ^ Pogrel, MA; Shariati, S; Schmidt, B; Faal, ZH; Regizi, J (1998). "The surgical anatomy of the nasolabial fold".Oral Surg Oral Med Oral Pathol Oral Radiol Endod .86 (4):410– 5.doi :10.1016/s1079-2104(98)90365-1 .PMID 9798223 . ^ Why Do Nasolabial Folds Appear? Exploring the Anatomical Perspectives and the Role of Thread-Based Interventions ,doi :10.3390/diagnostics14070716 ^ The Lip-Cheek Groove: A New Analysis With Treatment Options ,doi :10.1001/archfaci.8.5.324 ^ Wulc, Allan E.; Sharma, Pooja; Czyz, Craig N. (2010). "The Anatomic Basis of Midfacial Aging".Midfacial Rejuvenation . pp. 15– 28.doi :10.1007/978-1-4614-1007-2_2 .ISBN 978-1-4614-1006-5 ^ "Why your face ages and what you can do" .www.health.harvard.edu/ . Harvard Health Publications. 14 September 2010. Retrieved23 February 2015 .^ M. Smith, Abigail; Ferris, Taylor; K. Nahar, Vinayak; Sharma, Manoj (March 2020)."Non-Traditional and Non-Invasive Approaches in Facial Rejuvenation: A Brief Review" .Cosmetics .7 (1): 10.doi :10.3390/cosmetics7010010
