Journal of Korean society of Dental Hygiene (한국치위생학회지)

Korean Society of Dental Hygiene (한국치위생학회)
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The correlation among the oral & facial states and the gummy smile in female college students

일부 여대생의 구강 및 안모상태와 치은노출(Gummy smile)과의 상관성

  • So, Mi-Hyun (Department of Dental Hygiene, Suwon Women's College)
  • 소미현 (수원여자대학교 치위생과)
  • Received : 2012.02.23
  • Accepted : 2012.04.20
  • Published : 2012.04.30
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Abstract

Objectives : The author has studied about correlation of gingival exposure upon smiling and oral facial status that reduce facial aesthetic. Methods : The subjects in this study are 91 female vulunteers who were in aged $21.4{\pm}1.89$ in Suwon. Objectives should be normal oral and facial status without the prosthodontic, orthodontic appliance or conqenital missing tooth, and agree to be examined the oral status and impression taking. 1.Measure the length of gingival exposure upon smiling. 2.Measure of the size on central incisor. 3.Measure of Facial. SPSS(SPSS 10.0 for windows, SPSS Inc, Chicago, USA) was utilized for calculating the correlation coefficient between gingival exposure upon smiling and facial status. Regression analysis was calculated in order to predict the R square for gingival exposure upon smiling. Results : 1.Correlation coefficient between the gingival exposure and length of maxillary central incisor was calculated as reversed correlation(r=-.302, p<0.01), and between the gingival exposure and the ratio of the length of central incisor/width of central incisor was revealed as reversed correlation(r=-.250, p<0.05) on smiling. 2.There was correlation between the gingival exposure and the facial height(r=.351, p<0.01), the lower facial height(r=.454, p<0.01) and the upper lip height(r=.274, p<0.01) upon smiling. 3.There was correlation between the gingival exposure and the ratio of the facial height/facial width(r=.358, p<0.05), the ratio of the upper facial height/facial width(r=.214, p<0.05), and the ratio of the lower facial height/facial height(r=.383, p<0.01) upon smiling. 4.The equation of the regression analysis for gingival exposure upon smiling could be estimated as gingival exposure upon smiling=-5.139+.279${\times}$lower facial height-.615${\times}$maxillary central incisal length-.05${\times}$nasolabial angle. Conclusions : Considering these results, it recommended that treatment planning should be designed in consideration of such factors as the length of maxillary central incisor, facial height, upper lip height and lower facial height, in order to promote the easthetic problems of face on smiling.

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References

  1. Shin MW, Ji MK. A servey on the actual conditions & recognition of tooth bleaching in female college students. J Korean Acad Dental Hygiene Education 2008;8(4):43-52.
  2. Giuseppe cozzani. Garden of orthodontics. Seoul: Shinhung international;2002:24-31.
  3. Goldstein RE. Change your smile. Chicago: Quintessence publishing;1984:1-36.
  4. Ezquerra F, Berrazueta MJ, Ruiz-Capillas A, sainz Arrequi j. New approach to the gummy smile. Plast Reconstr Surg 1999;104(4):1143-1149. https://doi.org/10.1097/00006534-199909020-00042
  5. Redlich M, Mazor Z, Brezniak N. Severe high angle Class II division 1 malocculusion with vertical maxillary excess and gummy smile : A case report. Am J Orthod Dentofacial Orthop 1999;116(3):317-320. https://doi.org/10.1016/S0889-5406(99)70243-X
  6. Garber D, Salama M. The aesthetic smile : Diagnosis and treatment. Periodontol 2000 1996;11:18-28.
  7. Kwen YH, Kim SJ, Kim BO, et al. Periodontology. Seoul:Koonja publishing co;1996: 705-706.
  8. Bishara SE. Dental orthodontics. Seoul:Narae publishing co;2002:104-109.
  9. Park HJ. A study on the characteristics of cranio facial structures in gummy smile patients[master's degree]. Kwangju:Graduate school of Chosun University;2003.
  10. Yu JY, Kim SC, Kook YA. The effects of hard and soft tissue on Gummy smile. Journal of Wonkwang dental research institute 1997;7(1):223-234.
  11. Monaco A, Streni O, Marci MC, et al. Gummy smile : clinical parameters useful for diagnosis and therapeutical approach. J clin Pediatr Dent. 2004 fall;29(1):19-25.
  12. Fakas LG. Anthropometry of the head and face in medicine. Newyork:elsevier science publishing;1981.
  13. Fakas LG, Munro JR. Anthropometric facial propotions in medicine. spring field III. Newyork:Charles C Thomas;1987.
  14. Lee HJ, Jeon ES. A reaserch on the questionnaires about Busan citizen's understanding of the tooth bleaching. J Korean Acad Dental Hygiene Education 2006;6(1):79-91.
  15. Culpepper WD, Mitchel PS, Blass MS. Anesthetic factors in anterior tooth restoration. J Prosthet Dent 1973;30:576-582.
  16. Luiz N. Baratieri : Aesthetics. Seoul:Narae publishing;2000:35-36.
  17. Renner RP. An introduction to dental anatomy and esthetics. Chicago: Quintessence int.;1985:241-273.
  18. Matthews TG. The anatomy of a smile. J Prosthet Dent 1978;39(2):128-134. https://doi.org/10.1016/S0022-3913(78)80008-0
  19. Curtis TA, Shaw EL, Curtis DA. The influence of removable prosthodontic procedures and concepts on the esthetics of complete denture. J Prosthet Dent 1987;57(3):315-323 https://doi.org/10.1016/0022-3913(87)90305-2
  20. Peck S, Peck L, Kataja M. The gingival smile line. Angle Orthod 1992;62(2):91-100.
  21. Boucher CO, Hicker JC, Zarb GA. Prosthodontic treatment for edentulous patients need. 6th ed. St. Louis:The CV Mosby Co;1975.
  22. Litton C, Fournier P. Simple surgical correction of the gummy smile. Plast Reconstr Surg 1979;63(3):372-373. https://doi.org/10.1097/00006534-197903000-00014
  23. Riketts R. Esthetics: environmental and the law of lip relation. Am J Orthod 1968;54:272-289 https://doi.org/10.1016/S0002-9416(68)90278-9
  24. Tjan AHL, Miller GD, The JG. Some esthetic factors in a smile. J Pros Dent 1984; 51(1):24-28. https://doi.org/10.1016/S0022-3913(84)80097-9
  25. Van der Geld PA, Van Waas MA. The smile line, a literature search. Ned Tijdschr Tandheelkd. 2003 Sep;110(9):350-354.
  26. Schendel SA, Eisenfeld JH, Bell WH, Epker BN, Mishelevich D. The long face syndrome: vertical maxillary excess. Am J Orthod 1976;70(4);398-408. https://doi.org/10.1016/0002-9416(76)90112-3
  27. Bell WH, Creekmore TD, Alexander RG. Surgical correction of the long face syndrome. Am J Orthod 1977;71(1):40-67.
  28. Bell WH. Correction of skeletal type anterior open bite. J Oral Surg 1971;29(10);706-714