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词条 Gummy smile
释义

  1. Treatment

  2. References

Gummy smile also known as excessive gingival display is a smile that shows an excessive amount of gum under the upper lip. It is a common unaesthetic clinical condition, which can be caused by an abnormal dental eruption (delayed passive eruption), or hyperfunction of the upper lip elevator muscle or by an excessive vertical growth of the bone of maxilla or over-eruption of the maxillary anterior teeth, or a combinations to one of the above described factors together.[1][2] Several treatment options have been proposed to enhance the smile display and to reduce the gingival exposure.[3]

Treatment

Treatment option include orthodontics,[4] surgery,[5] botulinum toxin A injections,[6] and micro-autologous fat transplantation (MAFT).[7]

Botox (BTX-A) has been successful in the treatment of gummy smiles, however the results are not permanent, they last for an average of 6 months.[8] The material is injected into the hyperactive muscles of upper lip, which causes a reduction in the upward movement of lip thus resulting in a smile with a less exposure of gingiva.[9] Botox is usually injected in the three lip elevator muscles that converge on the lateral side of the ala of the nose; the levator labii superioris (LLS), the levator labii superioris alaeque nasi muscle (LLSAN), and the zygomaticus minor (ZMi).[10]

References

{{Portal|Dentistry}}
1. ^{{cite journal | vauthors = Monaco A, Streni O, Marci MC, Marzo G, Gatto R, Giannoni M | title = Gummy smile: clinical parameters useful for diagnosis and therapeutical approach | journal = The Journal of Clinical Pediatric Dentistry | volume = 29 | issue = 1 | pages = 19–25 | date = 2004 | pmid = 15554398 | doi = }}
2. ^{{cite journal | vauthors = Chandrasekharan D, Balaji SM | title = Intrusion of anterior teeth to improve smile esthetics | journal = Journal of Maxillofacial and Oral Surgery | volume = 9 | issue = 1 | pages = 27–9 | date = March 2010 | pmid = 23139562 | pmc = 3453683 | doi = 10.1007/s12663-010-0009-8 }}
3. ^{{cite journal | vauthors = Levine RA, McGuire M | title = The diagnosis and treatment of the gummy smile | journal = Compendium of Continuing Education in Dentistry (Jamesburg, N.J. : 1995) | volume = 18 | issue = 8 | pages = 757–62, 764; quiz 766 | date = August 1997 | pmid = 9533335 | doi = }}
4. ^{{cite journal | vauthors = Chandrasekharan D, Balaji SM | title = Intrusion of anterior teeth to improve smile esthetics | journal = Journal of Maxillofacial and Oral Surgery | volume = 9 | issue = 1 | pages = 27–9 | date = March 2010 | pmid = 23139562 | doi = 10.1007/s12663-010-0009-8 | pmc = 3453683 }}
5. ^{{cite journal | vauthors = Faus-Matoses V, Faus-Matoses I, Jorques-Zafrilla A, Faus-Llácer VJ | title = Lip repositioning technique. A simple surgical procedure to improve the smile harmony | journal = Journal of Clinical and Experimental Dentistry | volume = 10 | issue = 4 | pages = e408-e412 | date = April 2018 | pmid = 29750105 | pmc = 5937970 | doi = 10.4317/jced.54721 }}
6. ^{{cite journal | vauthors = Sucupira E, Abramovitz A | title = A simplified method for smile enhancement: botulinum toxin injection for gummy smile | journal = Plastic and Reconstructive Surgery | volume = 130 | issue = 3 | pages = 726–8 | date = September 2012 | pmid = 22929256 | doi = 10.1097/PRS.0b013e31825dc32f }}
7. ^{{cite journal | vauthors = Huang SH, Huang YH, Lin YN, Lee SS, Chou CK, Lin TY, Takahashi H, Kuo YR, Lai CS, Lin SD, Lin TM | title = Micro-Autologous Fat Transplantation for Treating a Gummy Smile | journal = Aesthetic Surgery Journal | date = March 2018 | pmid = 29566216 | doi = 10.1093/asj/sjy069 }}
8. ^{{cite journal | vauthors = Nayyar P, Kumar P, Nayyar PV, Singh A | title = BOTOX: Broadening the Horizon of Dentistry | journal = Journal of Clinical and Diagnostic Research | volume = 8 | issue = 12 | pages = ZE25-9 | date = December 2014 | pmid = 25654058 | pmc = 4316364 | doi = 10.7860/JCDR/2014/11624.5341 }}
9. ^{{cite journal | vauthors = Al-Fouzan AF, Mokeem LS, Al-Saqat RT, Alfalah MA, Alharbi MA, Al-Samary AE | title = Botulinum Toxin for the Treatment of Gummv Smile | journal = The Journal of Contemporary Dental Practice | volume = 18 | issue = 6 | pages = 474–478 | date = June 2017 | pmid = 28621277 }}
10. ^{{cite journal | vauthors = Hwang WS, Hur MS, Hu KS, Song WC, Koh KS, Baik HS, Kim ST, Kim HJ, Lee KJ | title = Surface anatomy of the lip elevator muscles for the treatment of gummy smile using botulinum toxin | journal = The Angle Orthodontist | volume = 79 | issue = 1 | pages = 70–7 | date = January 2009 | pmid = 19123705 | doi = 10.2319/091407-437.1 }}

1 : Dentistry

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