 |
Publisher: Peytchinski, Gospodin Iliev
ISSN: 1312-773X (Online)
Issue: 2017, vol. 23, issue 1
Subject Area: Dental Medicine
-
DOI: 10.5272/jimab.2017231.1505
Published online: 28 March 2017
Original Article
J of IMAB 2017 Jan-Mar;23(1):1505-1509
FACTORS AFFECTING THE ABUTMENT SCREW LOOSENING.
Dimitar Kirov1
, Biser Stoichkov2,
1) Department of Prosthetic Dentistry, Faculty of Dental Medicine, Medical University, Sofia, Bulgaria.
2) Department of Oral and Maxillo-Facial Surgery, Faculty of Dental Medicine, Medical University - Sofia, Bulgaria.
ABSTRACT:
Aim of the study: To establish the influence of various factors upon the loosening of abutment screw.
Material and Methods: The current study has analyzed the factors leading to loosening of the abutment screws implant-supported restorations. 116 patients have been examined with 234 setting implants for a period of 2 to 9 years. Factors related to the planning of implant prostheses such as area of implantation, available bone volume have been registered, as well as those related to the functional loading of dental implants. The impact of their effect has been calculated.
Results: Abutment screw loosening has been registered in 6.8% of the monitored cases. Regarding the type of connection between the implant and abutment a higher prevalence has been reported in connection with an internal octagon - 4.7% compared to the conical connection - 2.1%. It was found that the type of prosthesis, bruxism, cantilevers, non-balanced occlusion, crestal bone resorption and time of this complication setting in are factors of statistically significant influence.
Conclusion: It has been concluded that the optimal choice and number of implant positions, the design of prosthesis, achieving optimal occlusion as well as reporting cases of bruxism, leading to functional overload of dental implants are of particular importance in order to avoid bio-mechanical long-term complications.
Key words: abutment screw loosening, implant complications, occlusal load, bruxism, bone resorption,
- Download FULL TEXT /PDF 723 KB/
Please cite this article in PubMed Style or AMA (American Medical Association) Style:
Kirov D, Stoichkov B. Factors affecting the abutment screw loosening. J of IMAB. 2017 Jan-Mar;23(1):1505-1509. DOI: 10.5272/jimab.2017231.1505.
For correspondence: Dimitar Kirov, DDS, PhD, assistant professor, Department of Prosthetic Dentistry, Faculty of Dental Medicine, Medical University, Sofia; 1, Sv. Georgi Sofyiski St., 1431 Sofia, Bulgaria; E-mail: dimiterkirov@gmail.com
REFERENCES:
1. Moraschini V, Poubel LA, Ferreira VF, Barboza Edos S. Evaluation of survival and success rates of dental implants reported in longitudinal studies with a follow-up period of at least 10 years: a systematic review. Int J Oral Maxillofac Surg. 2015 Mar;44(3):377-88. [PubMed] [CrossRef]
2. Tey VH, Phillips R, Tan K. Five-year retrospective study on success, survival and incidence of complications of single crowns supported by dental implants. Clin Oral Implants Res. 2016 Jun 22. [Epub ahead of print] [PubMed] [CrossRef]
3. Krishnan V, Tony Thomas C, Sabu I. Management of abutmentscrew loosening: review of literature and report of a case. J Indian Prosthodont Soc. 2014 Sep;14(3):208-14. [PubMed] [CrossRef]
4. Camps-Font O, Figueiredo R, Valmaseda-Castellón E, Gay-Escoda C. Postoperative Infections After Dental Implant Placement: Prevalence, Clinical Features, and Treatment. Implant Dent. 2015 Dec;24(6):713-9. [PubMed] [CrossRef]
5. Gupta S, Gupta H, Tandan A. Technical complications of implant-causes and management: A comprehensive review. Natl J Maxillofac Surg. 2015 Jan-Jun;6(1):3-8. [PubMed] [CrossRef]
6. Chaar MS, Att JR, Strub JR. Prosthetic outcome of cement-retained implant-supported fixed dental restorations: a systematic review. J Oral Rehabil. 2011 Sep;38(9):697-711. [PubMed] [CrossRef]
7. Yeo IS, Lee JH, Kang TJ, Kim SK, Heo SJ, Koak JY, et al. The effect of abutment screw length on screw loosening in dental implants with external abutment connections after thermocycling. Int J Oral Maxillofac Implants. 2014 Jan-Feb;29(1):59-62. [PubMed] [CrossRef]
8. Kim ES, Shin SY. Influence of the implant abutment types and the dynamic loading on initial screw loosening. J Adv Prosthodont. 2013 Feb;5(1):21-28. [PubMed] [CrossRef]
9. Gonda T, Yasuda D, Ikebe K, Maeda Y. Biomechanical factors associated with mandibular cantilevers: analysis with three-dimensional finite element models. Int J Oral Maxillofac Implants. 2014 Nov-Dec;29(6):e275-82. [PubMed]
10. Koyano K, Esaki D. Occlusion on oral implants: current clinical guidelines. J Oral Rehabil. 2015 Feb;42(2):153-61. [PubMed] [CrossRef]
11. Sahin C, Ayyildiz S. Correlation between microleakage and screw loosening at implant-abutment connection. J Adv Prosthodont. 2014; 6: 35-38. [PubMed] [CrossRef]
12. Canullo L, Penarrocha-Oltra D, Soldini C, Mazzocco F, Penarrocha M, Covani U. Microbiological assessment of the implant-abutment interface in different connections: cross-sectional study after 5 years of functional loading. Clin Oral Implants Res. 2015 Apr;26(4):426-34. [PubMed] [CrossRef]
13. Cortes AR, Ferraz P, Tosta M. Influence of etiologic factors in peri-implantitis: literature review and case report. J Oral Implantol. 2012 Oct;38(5):633-7. [PubMed] [CrossRef]
14. Gracis S, Michalakis K, Vigolo P, Vult von Steyern P, Zwahlen M, Sailer I. Internal vs. external connections for abutments/reconstructions: A systematic review. Clin Oral Implants Res. 2012 Oct;23 Suppl 6:202-16. [PubMed] [CrossRef]
15. Feitosa PC, de Lima AP, Silva-Concílio LR, Brandt WC, Neves AC. Stability of external and internal implant connections after a fatigue test. Eur J Dent. 2013 Jul;7(3):267–271. [PubMed] [CrossRef]
16. Komiyama O, Lobbezoo F, De Laat A, Iida T, Kitagawa T, Murakami H, et al. Clinicalmanagement of implantprostheses in patients with bruxism. Int J Biomater. 2012;2012:369063. [PubMed] [CrossRef]
17. Chrcanovic BR, Albrektsson T, Wennerberg A. Bruxism and Dental Implants: A Meta-Analysis. Implant Dent. 2015 Oct;24(5):505-16. [PubMed] [CrossRef]
18. Chrcanovic BR, Kisch J, Albrektsson T, Wennerberg A. Bruxism and dental implant failures: a multilevel mixed effects parametric survival analysis approach. J Oral Rehabil. 2016 Nov;43(11):813-823. [PubMed] [CrossRef]
19. Ganeva Z. [Discovering statistics using IBM SPSS statistics.] 1st ed. Elestra Ltd, Sofia. 2016:258-9 [In Bulgarian].
20. Jemt T. Single implants in the anterior maxilla after 15 years of follow-up: comparison with central implants in the edentulous maxilla. Int J Prosthodont. 2008 Sep-Oct;21(5):400-8. [PubMed]
21. Shemtov-Yona K, Rittel D, Levin L, Machtei EE. Effect of dental implant diameter on fatigue performance. Part I: mechanical behavior. Clin Implant Dent Relat Res. 2014 Apr;16(2):172-7. [PubMed] [CrossRef]
22. Marcelo CG, Filié Haddad M, Gennari Filho H, Marcelo Ribeiro Villa L, Dos Santos DM, Aldiéris AP. Dental implant fractures - aetiology, treatment and case report. J Clin Diagn Res. 2014 Mar;8(3):300-4. [PubMed] [CrossRef]
23. Sánchez-Pérez A, Moya-Villaescusa MJ, Jornet-Garcia A, Gomez S. Etiology, risk factors and management of implant fractures. Med Oral Patol Oral Cir Bucal. 2010 May 1;15(3):e504-8. [PubMed]
24. Romanos GE, Gupta B, Gaertner K, Nentwig GH. Distal cantilever in full-arch prostheses and immediate loading: a retrospective clinical study. Int J Oral Maxillofac Implants. 2014 Mar-Apr;29(2):427-31. [PubMed]
25. Kreissl ME, Gerds T, Muche R, Heydecke G, Strub JR. Technical complications of implant-supported fixed partial dentures in partially edentulous cases after an average observation period of 5 years. Clin Oral Implants Res. 2007 Dec;18(6):720-726. [PubMed] [CrossRef].
Received: 03 February 2017
Published online: 28 March 2017