J Adv Prosthodont.  2018 Jun;10(3):191-196. 10.4047/jap.2018.10.3.191.

A retrospective clinical study of single short implants (less than 8 mm) in posterior edentulous areas

• Kim SY
• Ku JK
• Kim HS
• Yun PY
• Kim YK

• KMID: 2413487
• DOI: http://doi.org/10.4047/jap.2018.10.3.191

Abstract

PURPOSE
The goal of this study was to evaluate the clinical outcome of single short implants, less than 8 mm in length, placed in the posterior area.
MATERIALS AND METHODS
A total of 128 patients (75 male and 53 female, mean age: 52.6±11.2 years) with 154 implants participated. Implant marginal bone loss, and survival and success rates were measured.
RESULTS
The mean follow-up period was 51.35±24.97 months. A total of 128 implants, 8 mm in length, were placed in patients who had mean marginal bone loss of 0.75 mm. These implants had a survival rate of 95.3%. Twenty-six implants, 7 mm in length, were placed in areas with a mean marginal bone loss of 0.78 mm and had a survival rate of 96.2%. Both marginal bone loss and survival rate were not statistically different among the groups. In the maxilla, 34 implants showed a mean marginal bone loss of 0.77 mm and a survival rate of 97.1%. In the mandible, 120 implants showed a mean marginal bone loss of 0.75 mm and a survival rate of 95.0%. The average marginal bone loss around all implants was 0.76±0.27 mm at the last follow-up review after functional loading. The survival rate was 95.6% and success rate was 93.5%.
CONCLUSION
In our study, single short implants less than 8 mm in length in the posterior areas had favorable clinical outcomes.

Keyword

Short implants; Single implant

MeSH Terms

Clinical Study*
Female
Follow-Up Studies
Humans
Male
Mandible
Maxilla
Retrospective Studies*
Survival Rate

Reference

1. Misch CE, Suzuki JB, Misch-Dietsh FM, Bidez MW. A positive correlation between occlusal trauma and peri-implant bone loss: literature support. Implant Dent. 2005; 14:108–116. PMID: 15968181.

2. Rocci A, Martignoni M, Gottlow J. Immediate loading of Brånemark System TiUnite and machined-surface implants in the posterior mandible: a randomized open-ended clinical trial. Clin Implant Dent Relat Res. 2003; 5(Suppl 1):57–63.

3. Glauser R, Lundgren AK, Gottlow J, Sennerby L, Portmann M, Ruhstaller P, Hämmerle CH. Immediate occlusal loading of Brånemark TiUnite implants placed predominantly in soft bone: 1-year results of a prospective clinical study. Clin Implant Dent Relat Res. 2003; 5(Suppl 1):47–56.

4. Sun HL, Huang C, Wu YR, Shi B. Failure rates of short (≤ 10 mm) dental implants and factors influencing their failure: a systematic review. Int J Oral Maxillofac Implants. 2011; 26:816–825. PMID: 21841992.

5. 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. PMID: 16392351.

6. Chan MF, Närhi TO, de Baat C, Kalk W. Treatment of the atrophic edentulous maxilla with implant-supported overdentures: a review of the literature. Int J Prosthodont. 1998; 11:7–15. PMID: 9588985.

7. Misch CE. Short dental implants: a literature review and rationale for use. Dent Today. 2005; 24:64–66. 68

8. Balshi TJ, Wolfinger GJ, Slauch RW, Balshi SF. A retrospective analysis of 800 Brånemark System implants following the All-on-Four™ protocol. J Prosthodont. 2014; 23:83–88. PMID: 23890014.

9. Annibali S, Cristalli MP, Dell'Aquila D, Bignozzi I, La Monaca G, Pilloni A. Short dental implants: a systematic review. J Dent Res. 2012; 91:25–32. PMID: 22034499.

10. Mendonça JA, Francischone CE, Senna PM, Matosde Oliveira AE, Sotto-Maior BS. A retrospective evaluation of the survival rates of splinted and non-splinted short dental implants in posterior partially edentulous jaws. J Periodontol. 2014; 85:787–794. PMID: 24171498.

11. Antoun H, Cherfane P, Sojod B. Consecutive Case Series of Healed Single-Molar Sites Immediately Restored with Wide-Diameter Implants: A 1-Year Evaluation. Int J Dent. 2016; 2016:5645892. PMID: 27195008.

12. Calandriello R, Tomatis M. Immediate occlusal loading of single lower molars using Brånemark System® Wide Platform TiUnite™ implants: a 5-year follow-up report of a prospective clinical multicenter study. Clin Implant Dent Relat Res. 2011; 13:311–318. PMID: 19673926.

13. Fugazzotto PA, Vlassis J, Butler B. ITI implant use in private practice: Clinical results with 5,526 implants followed up to 72+ months in function. Int J Oral Maxillofac Implants. 2004; 19:408–412. PMID: 15214226.

14. Malmstrom H, Gupta B, Ghanem A, Cacciato R, Ren Y, Romanos GE. Success rate of short dental implants supporting single crowns and fixed bridges. Clin Oral Implants Res. 2016; 27:1093–1098. PMID: 26391214.

15. 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. PMID: 3527955.

16. Zarb GA, Albrektsson T. Consensus report: towards optimized treatment outcomes for dental implants. J Prosthet Dent. 1998; 80:641. PMID: 9830066.

17. Herrmann I, Lekholm U, Holm S, Kultje C. Evaluation of patient and implant characteristics as potential prognostic factors for oral implant failures. Int J Oral Maxillofac Implants. 2005; 20:220–230. PMID: 15839115.

18. Weng D, Jacobson Z, Tarnow D, Hürzeler MB, Faehn O, Sanavi F, Barkvoll P, Stach RM. A prospective multicenter clinical trial of 3i machined-surface implants: results after 6 years of follow-up. Int J Oral Maxillofac Implants. 2003; 18:417–423. PMID: 12814318.

19. Telleman G, Raghoebar GM, Vissink A, den Hartog L, Huddleston Slater JJ, Meijer HJ. A systematic review of the prognosis of short (<10 mm) dental implants placed in the partially edentulous patient. J Clin Periodontol. 2011; 38:667–676. PMID: 21564158.

20. Romeo E, Ghisolfi M, Rozza R, Chiapasco M, Lops D. Short (8-mm) dental implants in the rehabilitation of partial and complete edentulism: a 3- to 14-year longitudinal study. Int J Prosthodont. 2006; 19:586–592. PMID: 17165298.

21. Maló P, de Araújo Nobre M, Rangert B. Short implants placed one-stage in maxillae and mandibles: a retrospective clinical study with 1 to 9 years of follow-up. Clin Implant Dent Relat Res. 2007; 9:15–21. PMID: 17362493.

22. Kim YK, Kim SG, Yun PY, Hwang JW, Son MK. Prognosis of single molar implants: a retrospective study. Int J Periodontics Restorative Dent. 2010; 30:401–407. PMID: 20664842.

23. Kim YK, Ahn KJ, Yun PY. A retrospective study on the prognosis of single implant placed at the sinus bone graft site. Oral Surg Oral Med Oral Pathol Oral Radiol. 2014; 118:181–186. PMID: 23838074.

24. Isidor F. Clinical probing and radiographic assessment in relation to the histologic bone level at oral implants in monkeys. Clin Oral Implants Res. 1997; 8:255–264. PMID: 9586471.

25. Yilmaz B, Seidt JD, McGlumphy EA, Clelland NL. Comparison of strains for splinted and nonsplinted screw-retained prostheses on short implants. Int J Oral Maxillofac Implants. 2011; 26:1176–1182. PMID: 22167421.