1. 1) Adell R, Eriksson B, Lekholm U, Brånemark PI, Jemt T. Long-term follow-up study of osseointegrated implants in the treatment of totally edentulous jaws. Int J Oral Maxillofac Implants 1990; 5: 347-359.
2. 2) Gentile MA, Chuang SK, Dodson TB. Survival estimates and risk factors for failure with 6 × 5.7-mm implants. Int J Oral Maxillofac Implants 2005; 20: 930-937.
3. 3) Esposito M, Hirsch JM, Lekholm U, Thomsen P. Biological factors contributing to failures of osseointegrated oral implants. (II). Etiopathogenesis. Eur J Oral Sci 1998; 106: 721-764.
4. 4) Esposito M, Hirsch JM, Lekholm U, Thomsen P. Differential diagnosis and treatment strategies for biologic complications and failing oral implants. Int J Oral Maxillofac Implants 1999; 14: 473-490.
5. 5) Yang TC, Maeda Y, Gonda T. Biomechanical rationale for short implants in splinted restorations: an in vitro study. Int J Prosthodont 2011; 24: 130-132.