1. Lindh T, Gunne J, Tillberg A, Molin M. A meta-analysis of implants in partial edentulism. Clin Oral Implants Res. 1998. 9:80–90.
Article
2. Wyatt CC, Zarb GA. Treatment outcomes of patients with implant-supported fixed partial prostheses. Int J Oral Maxillofac Implants. 1998. 13:204–211.
3. Noack N, Willer J, Hoffmann J. Long-term results after placement of dental implants: longitudinal study of 1,964 implants over 16 years. Int J Oral Maxillofac Implants. 1999. 14:748–755.
4. Naert I, Koutsikakis G, Duyck J, Quirynen M, Jacobs R, van Steenberghe D. Biologic outcome of implant-supported restorations in the treatment of partial edentulism. part I: a longitudinal clinical evaluation. Clin Oral Implants Res. 2002. 13:381–389.
Article
5. Albrektsson T, Zarb G, Worthington P, Eriksson AR. The long-term efficacy of currently used dental implants: a review and proposed criteria of success. Int J Oral Maxillofac Implants. 1986. 1:11–25.
6. Buser D, Martin W, Belser UC. Optimizing esthetics for implant restorations in the anterior maxilla: anatomic and surgical considerations. Int J Oral Maxillofac Implants. 2004. 19:Suppl. 43–61.
7. Smith DE, Zarb GA. Criteria for success of osseointegrated endosseous implants. J Prosthet Dent. 1989. 62:567–572.
Article
8. Furhauser R, Florescu D, Benesch T, Haas R, Mailath G, Watzek G. Evaluation of soft tissue around single-tooth implant crowns: the pink esthetic score. Clin Oral Implants Res. 2005. 16:639–644.
Article
9. Belser UC, Grutter L, Vailati F, Bornstein MM, Weber HP, Buser D. Outcome evaluation of early placed maxillary anterior single-tooth implants using objective esthetic criteria: a cross-sectional, retrospective study in 45 patients with a 2- to 4-year follow-up using pink and white esthetic scores. J Periodontol. 2009. 80:140–151.
Article
10. Gehrke P, Lobert M, Dhom G. Reproducibility of the pink esthetic score--rating soft tissue esthetics around single-implant restorations with regard to dental observer specialization. J Esthet Restor Dent. 2008. 20:375–384.
Article
11. Fardal O, Johannessen AC, Linden GJ. Patient perceptions of periodontal therapy completed in a periodontal practice. J Periodontol. 2002. 73:1060–1066.
Article
12. Czochrowska EM, Stenvik A, Bjercke B, Zachrisson BU. Outcome of tooth transplantation: survival and success rates 17-41 years posttreatment. Am J Orthod Dentofacial Orthop. 2002. 121:110–119.
Article
13. Wolfart S, Thormann H, Freitag S, Kern M. Assessment of dental appearance following changes in incisor proportions. Eur J Oral Sci. 2005. 113:159–165.
Article
14. Belser U, Buser D, Higginbottom F. Consensus statements and recommended clinical procedures regarding esthetics in implant dentistry. Int J Oral Maxillofac Implants. 2004. 19:Suppl. 73–74.
15. An KY, Lee JY, Kim SJ, Choi JI. Perception of maxillary anterior esthetics by dental professionals and laypeople and survey of gingival topography in healthy young subjects. Int J Periodontics Restorative Dent. 2009. 29:535–541.
16. Flores-Mir C, Silva E, Barriga MI, Lagravere MO, Major PW. Lay person's perception of smile aesthetics in dental and facial views. J Orthod. 2004. 31:204–209.
Article
17. Miller CJ. The smile line as a guide to anterior esthetics. Dent Clin North Am. 1989. 33:157–164.
18. Kokich VO Jr, Kiyak HA, Shapiro PA. Comparing the perception of dentists and lay people to altered dental esthetics. J Esthet Dent. 1999. 11:311–324.
Article
19. Brisman AS. Esthetics: a comparison of dentists' and patients' concepts. J Am Dent Assoc. 1980. 100:345–352.
Article
20. Choquet V, Hermans M, Adriaenssens P, Daelemans P, Tarnow DP, Malevez C. Clinical and radiographic evaluation of the papilla level adjacent to single-tooth dental implants. A retrospective study in the maxillary anterior region. J Periodontol. 2001. 72:1364–1371.
Article
21. Renouard F, Rangert B. Risk factors in implant dentistry: simplified clinical analysis for predictable treatment. 2008. 2nd ed. Chicago: Quintessence International.