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Abstract

BACKGROUND:

The stability of the implant-abutment interface is an important factor that influences load distribution on the marginal bone.

OBJECTIVE:

In this study, three dental implants with the same connection were subjected to different dynamic loading cycles. The fracture strengths and the horizontal compatibility of implants were assessed.

METHODS:

Eighty four implant specimens were embedded in a polyacetal cylinder as simulated bone loss of 3 mm from the implant platform. Three of the implants were used to determine the endurance limit. The other specimens were subdivided into four subgroups (n = 6): three for dynamic + static loading, and one for static loading (control group). The tests were performed by applying a compression load. The dynamic loading experiments included three different cycles with endurance upper limit loads at a frequency of 10 Hz.

RESULTS:

The differences between the fracture strength values of the implant brands were found to be statistically significant. However, there were no meaningful differences between the fracture strength values of implants of the same brand. The specimens of the DTI implant system had the lowest strength (647.9 ± 41.5 N) and the SEM analysis indicated that the Implantium implant system had the shortest horizontal gaps.

CONCLUSIONS:

There was a negative correlation between the fracture strengths and size of the microgaps. The importance of these in vitro results needs to be validated by clinical trials because the loads in the mouth can be applied from various angles.

Keywords

Dental implant dynamic loading horizontal gap internal conical connection

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References

Michalakis

K.X.

Hirayama

and Garefis

P.D.

, Cement-retained versus screw-retained implant restorations: A critical review, Int J Oral Max Impl 18(5) (2003), 528.

Jansen

V.K.

Conrads

and Richter

E.J.

, Microbial leakage and marginal fit of the implant-abutment interface, Int J Oral Max Impl 12(4) (1997), 540.

Quirynen

De Soete

and Van Steenberghe

, Infectious risks for oral implants: A review of the literature, Clin Oral Implan Res 13(1) (2002), 19.

Burguete

R.L.

Johns

R.B.

King

and Patterson

E.A.

, Tightening characteristics for screwed joints in osseointegrated dental implants, J Prosthet Dent 71(6) (1994), 599.

Kitagawa

Tanimoto

Odaki

Nemoto

and Aida

, Influence of implant/abutment joint designs on abutment screw loosening in a dental implant system, J Biomed Mater Res B Appl Biomater 75(2) (2005), 463.

Quaresma

S.E.T.

Cury

P.R.

Sendyk

W.R.

and Sendyk

C.A.

, A finite element analysis of two different dental implants: Stress distribution in the prosthesis, abutment, implant, and supporting bone, J Oral Implantol 34(1) (2008), 6.

Lin

C.L.

Chang

S.H.

Chang

W.J.

and Kuo

Y.C.

, Factorial analysis of variables influencing mechanical characteristics of a single tooth implant placed in the maxilla using finite element analysis and the statistics-based Taguchi method, Eur J Oral Sci 115(5) (2007), 416.

Bozkaya

and Müftü

, Mechanics of the taper integrated screwed-in (TIS) abutments used in dental implants, J Biomech 38(1) (2005), 97.

Norton

M.R.

, An in vitro evaluation of the strength of a 1-piece and 2-piece conical abutment joint in implant design, Clin Oral Implants Res 11(5) (2000), 464.

10.

Coppedê

A.R.

Bersani

de Mattos Mda

Sartori

I.A.

and Ribeiro

R.F.

, Fracture resistance of the implant-abutment connection in implants with internal hex and internal conical connections under oblique compressive loading: An in vitro study, Int J Prosthodont 22(3) (2009), 286.

11.

Gehrke

Dhom

Brunner

Wolf

Degidi

and Piattelli

, Zirconium implant abutments: Fracture strength and influence of cyclic loading on retaining-screw loosening, Quintessence Int 37(1) (2006), 26.

12.

Nishioka

R.S.

de Vasconcellos

L.G.O.

and de Melo Nishioka

G.N.

, Comparative strain gauge analysis of external and internal hexagon, Morse taper, and influence of straight and ofset implant configuration, Implant Dent 20(2) (2011), 32.

13.

Maeda

Satoh

and Sogo

, In vitro differences of stress concentrations for internal and external hex implant-abutment connections: A short communication, J Oral Rehabil 33(1) (2006), 78.

14.

Dittmer

M.P.

Dittmer

Borchers

Kohorst

and Stiesch

, Influence of the interface design on the yield force of the implant–abutment complex before and after cyclic mechanical loading, J Prosthodont Res 56(1) (2012), 24.

15.

Truninger

T.C.

Stawarczyk

Leutert

C.R.

Sailer

T.R.

Hämmerle

C.H.

and Sailer

, Bending moments of zirconia and titanium abutments with internal and external implant-abutment connections after aging and chewing simulation, Clin Oral Implants Res 23(1) (2012), 18.

16.

Sundh

and Sjögren

, A study of the bending resistance of implant-supported reinforced alumina and machined zirconia abutments and copies, Dent Mate 24(5) (2008), 617.

17.

Marchetti

Ratta

Mummolo

Tecco

Pecci

Bedini

and Marzo

, Evaluation of an endosseous oral implant system according to UNI EN ISO 14801 fatigue test protocol, Implant Dent 23(6) (2014), 671.

18.

Pedroza

J.E.

Torrealba

Elias

and Psoter

, Comparison of the compressive strength of 3 different implant design systems, J Oral Implantol 33(1) (2007), 7.

19.

Coray

Zeltner

and Özcan

, Fracture strength of implant abutments after fatigue testing: A systematic review and a meta-analysis, J Mech Behav Biomed Mater 62 (2016), 346.

20.

Freitas-Júnior

A.C.

Almeida

E.O.

Bonfante

E.A.

Silva

N.R.F.A.

and Coelho

P.G.

, Reliability and failure modes of internal conical dental implant connections, Clin Oral Implants Res 24(2) (2013), 202.

21.

Delben

J.A.

Barão

V.A.

Ferreira

M.B.

da Silva

N.R.

Thompson

V.P.

and Assunção

W.G.

, Influence of abutment-to-fixture design on reliability and failure mode of all-ceramic crown systems, Dent Mater 30(4) (2014), 416.

22.

Chu

C.M.

Huang

H.L.

Hsu

J.T.

and Fuh

L.J.

, Influences of internal tapered abutment designs on bone stresses around a dental implant: Three-dimensional finite element method with statistical evaluation, J Periodontol 83(1) (2012), 118.

23.

Callan

D.P.

O’Mahony

and Cobb

C.M.

, Loss of crestal bone around dental implants: A retrospective study, Implant Dent 7(4) (1998), 266.

24.

Larrucea Verdugo

Jaramillo Núñez

Acevedo Avila

and Larrucea San Martín

, Microleakage of the prosthetic abutment/implant interface with internal and external connection: In vitro study, Clin Oral Implants Res 25(9) (2014), 1083.

25.

Scarano

Mortellaro

Mavriqi