Effects of Implant     Length and Diameter on Implant Primary Stability in Different Bone Types

Authors

  • Heshw Hiwa Ibrahim BDS, Restorative Dentistry, Sulaimani Center
  • Kawan Salahaddin Othman BDS, MSc, PhD Assistant. Prof., Department of Prosthodontic, College of Dentistry, University of Sulaimani

DOI:

https://doi.org/10.56056/

Keywords:

Bone Density, Dental Implants, Implant Geometry, Implant Primary Stability, Osseointigration

Abstract

Background and Objectives: Dental implants have revolutionized oral rehabilitation. Primary implant stability (PIS) of dental implants is influenced by several factors, including bone quality, implant length and diameter. The reason for this research is to assess the correlation between (PIS) and implant dimensions (diameter and length) in relation to various bone types.

Methods: In a cross-sectional observational study, 41 dental implants with different diameters and lengths were inserted into bones with different densities. Implant beds were prepared, and (PIS)was assessed using a novel damping capacity measurement device (AnyCheck) at the time of implant insertion.

Results: Implants with a wider diameter exhibit a mean stability of 69.33 compared to a mean stability of 65 for implants with a narrower diameter. The disparity between these groups was statistically significant, with a p-value of 0.036, and longer implants exhibited greater stability, with a mean value of 70.79, compared to shorter implants, had a mean stability of 64.68. This difference was significant within statistical parameters, with a p-value of 0.018, Regarding bone quality, implants with good bone quality exhibited a mean stability of 69.6 compared to 67.43 for implants with poor bone quality, this observed difference did not reach statistical significance with a p- value of 0.82, with a 95%confidence interval.

Conclusions: The findings indicate that increasing implant length and diameter significantly enhances (PIS), while bone quality did not significantly improved stability, underscoring the critical role of implant dimensions in achieving better treatment outcomes.

Downloads

Download data is not yet available.

References

1. Adell R, Eriksson B, Lekholm U, et al. Long-term follow-up study of Osseo integrated implants in the treatment of totally edentulous jaws. Int J Oral Maxillofac Implants. 1990; 5: 347–359.

2. Adell R, Lekholm U, Rockler B, et al. A 15-year study of Osseo integrated implants in the treatment of the edentulous jaw. Int J Oral Surg. 1981; 10: 387–416.

3. The Glossary of Prosthodontic Terms 2023: Tenth Edition. J Prosthet Dent. 2023 Oct;130(4 Suppl 1): e1-e3. doi: 10.1016/j.prosdent.2023.03.003. PMID: 37914441.

4. Bataineh AB, Al-Dakes AM. The influence of length of implant on primary stability: an in vitro study using resonance frequency analysis. Journal of clinical and experimental dentistry. 2017 Jan;9(1): e1.

5. Grassi S, Piattelli A, Ferrari DS, Figueiredo LC, Feres M, Iezzi G, et al. Histologic evaluation of human bone integration on machined and sandblasted acid-etched titanium surfaces in type IV bone. J Oral Implantol. 2007; 33:8-12.

6. Quesada-García MP, Prados-Sánchez E, Olmedo-Gaya MV, Muñoz Soto E, González- Rodríguez MP, Vallecillo-Capilla M. Measurement of dental implant stability by resonance frequency analysis: a review of the literature. Med Oral Patol Oral Cir Bucal. 2009;14: e538- 46.

7. Boronat López A, Balaguer Martínez J, Lamas Pelayo J, Carrillo García C, Pe-arrochaDiago

8. M. Resonance frequency analysis of dental implant stability during the healing period. Med Oral Patol Oral Cir Bucal. 2008;13: e244-7.

9. 8. . Georgiopoulos B, Kalioras K, Provatidis C, Manda M, Koidis P. The effects of implant length and diameter prior to and after osseointegra tion: a 2-D finite element analysis. J Oral Implantol. 2007; 33:243-56.

10. Kotsovilis S, Fourmousis I, Karoussis IK, Bamia C. A systematic re view and meta-analysis on the effect of implant length on the survival of rough-surface dental implants. J Periodontol. 2009; 80:1700-18.

11. Griffin TJ, Cheung WS. The use of short, wide implants in pos terior areas with reduced bone height: a retrospective investigation. J Prosthet Dent. 2004; 92:139-44.

12. Kong L, Sun Y, Hu K, Li D, Hou R, Yang J, et al. Bivariate evalua tion of cylinder implant diameter and length: a three-dimensional finite element analysis. J Prosthodont. 2008; 17:286-93.

13. Esposito M, Hirsch J-M, Lekholm U, Thomsen P. Biological factors contributing to failures of Osseo integrated oral implants. (II) Etiopathogenesis. Eur J Oral Sci. 1998;106(3):721.

14. Lekholm U. Tissue integrated prosthesis: Patient selection and preparation In: Brånemark PI, Zarb GA, Albrektsson T, eds. 1985. p. 199–209.

15. Barikani H, Rashtak S, Akbari S, Badri S, Daneshparvar N, Rokn A. The effect of implant length and diameter on the primary stability in different bone types. J Dent (Tehran). 2013 Sep;10(5):449-55. Epub 2013 Sep 30. PMID: 24910653; PMCID: PMC4025419.

16. Giro, G., Tovar, N., Marin, C., Bonfante, E. A., Jimbo, R., Suzuki, M., & Coelho, P. G. (2013). The effect of simplifying dental implant drilling sequence on osseointegration: an experimental study in dogs. International journal of biomaterials, 2013(1), 230310.

17. . Bilhan H, Geckili O, Mumcu E, Bozdag E, Sunbuloglu E, Kutay O. Influence of surgical technique, implant shape and diameter on the primary stability in cancellous bone. J Oral Rehabil. 2010 Dec;37(12):900–7.

18. Winter W, Mohrle S, Holst S, Karl M. Parameters of implant stability measurements based on resonance frequency and damping capacity: a comparative finite element analysis. Int J Oral Maxillofac Implants. 2010 May-Jun;25(3):532–9.

19. Ostman PO, Hellman M, Wendelhag I, Sennerby L. Resonance frequency analysis measurements of implants at placement surgery. Int J Prosthodont. 2006 Jan-Feb;19(1):77– 83.

20. Rokn A, Ghahroudi AARR, Mesgarzadeh A, Miremadi A, Yaghoobi S. Evaluation of Stability Changes in Tapered and Parallel Wall Implants: A Human Clinical Trial. J Dent (Tehran) 2011 Fall;8(4):186.

Downloads

Published

2026-06-01

Issue

Section

Articles

How to Cite

Effects of Implant     Length and Diameter on Implant Primary Stability in Different Bone Types. (2026). AMJ (Advanced Medical Journal) , 11(2), 10-16. https://doi.org/10.56056/