The Journal of Advanced Prosthodontics

The Korean Academy of Prosthodonitics (대한치과보철학회)
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In-vitro development of a temporal abutment screw to protect osseointegration in immediate loaded implants

  • Garcia-Roncero, Herminio (Department of Prosthodontics, School of Dentistry, Universitat Internacional de Catalunya) ;
  • Caballe-Serrano, Jordi (Department of Oral and Maxillofacial Surgery, School of Dentistry, Universitat Internacional de Catalunya) ;
  • Cano-Batalla, Jordi (Department of Prosthodontics, School of Dentistry, Universitat Internacional de Catalunya) ;
  • Cabratosa-Termes, Josep (Department of Prosthodontics, School of Dentistry, Universitat Internacional de Catalunya) ;
  • Figueras-Alvarez, Oscar (Department of Prosthodontics, School of Dentistry, Universitat Internacional de Catalunya)
  • Received : 2014.09.17
  • Accepted : 2015.03.05
  • Published : 2015.04.30
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Abstract

PURPOSE. In this study, a temporal abutment fixation screw, designed to fracture in a controlled way upon application of an occlusal force sufficient to produce critical micromotion was developed. The purpose of the screw was to protect the osseointegration of immediate loaded single implants. MATERIALS AND METHODS. Seven different screw prototypes were examined by fixing titanium abutments to 112 Mozo-Grau external hexagon implants (MG Osseous$^{(R)}$; Mozo-Grau, S.A., Valladolid, Spain). Fracture strength was tested at $30^{\circ}$ in two subgroups per screw: one under dynamic loading and the other without prior dynamic loading. Dynamic loading was performed in a single-axis chewing simulator using 150,000 load cycles at 50 N. After normal distribution of obtained data was verified by Kolmogorov-Smirnov test, fracture resistance between samples submitted and not submitted to dynamic loading was compared by the use of Student's t-test. Comparison of fracture resistance among different screw designs was performed by the use of one-way analysis of variance. Confidence interval was set at 95%. RESULTS. Fractures occurred in all screws, allowing easy retrieval. Screw Prototypes 2, 5 and 6 failed during dynamic loading and exhibited statistically significant differences from the other prototypes. CONCLUSION. Prototypes 2, 5 and 6 may offer a useful protective mechanism during occlusal overload in immediate loaded implants.

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References

  1. Esposito M, Grusovin MG, Maghaireh H, Worthington HV. Interventions for replacing missing teeth: different times for loading dental implants. Cochrane Database Syst Rev 2013;3:CD003878.
  2. Szmukler-Moncler S, Salama H, Reingewirtz Y, Dubruille JH. Timing of loading and effect of micromotion on bone-dental implant interface: review of experimental literature. J Biomed Mater Res 1998;43:192-203. https://doi.org/10.1002/(SICI)1097-4636(199822)43:2<192::AID-JBM14>3.0.CO;2-K
  3. Misch CE, Wang HL, Misch CM, Sharawy M, Lemons J, Judy KW. Rationale for the application of immediate load in implant dentistry: Part I. Implant Dent 2004;13:207-17. https://doi.org/10.1097/01.id.0000140461.25451.31
  4. Brunski JB. Avoid pitfalls of overloading and micromotion of intraosseous implants. Dent Implantol Update 1993;4:77-81.
  5. Kawahara H, Kawahara D, Hayakawa M, Tamai Y, Kuremoto T, Matsuda S. Osseointegration under immediate loading: biomechanical stress-strain and bone formation-resorption. Implant Dent 2003;12:61-8. https://doi.org/10.1097/01.ID.0000034394.75768.E3
  6. Chang PK, Chen YC, Huang CC, Lu WH, Chen YC, Tsai HH. Distribution of micromotion in implants and alveolar bone with different thread profiles in immediate loading: a finite element study. Int J Oral Maxillofac Implants 2012;27:e96-101.
  7. Javed F, Romanos GE. The role of primary stability for successful immediate loading of dental implants. A literature review. J Dent 2010;38:612-20. https://doi.org/10.1016/j.jdent.2010.05.013
  8. Trisi P, Perfetti G, Baldoni E, Berardi D, Colagiovanni M, Scogna G. Implant micromotion is related to peak insertion torque and bone density. Clin Oral Implants Res 2009;20:467-71. https://doi.org/10.1111/j.1600-0501.2008.01679.x
  9. Wazen RM, Currey JA, Guo H, Brunski JB, Helms JA, Nanci A. Micromotion-induced strain fields influence early stages of repair at bone-implant interfaces. Acta Biomater 2013;9:6663-74. https://doi.org/10.1016/j.actbio.2013.01.014
  10. Winter W, Klein D, Karl M. Effect of model parameters on finite element analysis of micromotions in implant dentistry. J Oral Implantol 2013;39:23-9. https://doi.org/10.1563/AAID-JOI-D-11-00221
  11. Mericske-Stern R, Assal P, Mericske E, Burgin W. Occlusal force and oral tactile sensibility measured in partially edentulous patients with ITI implants. Int J Oral Maxillofac Implants 1995;10:345-53.
  12. Waltimo A, Kononen M. Maximal bite force and its association with signs and symptoms of craniomandibular disorders in young Finnish non-patients. Acta Odontol Scand 1995;53:254-8. https://doi.org/10.3109/00016359509005982
  13. Flanagan D, Ilies H, Lasko B, Stack J. Force and movement of non-osseointegrated implants: an in vitro study. J Oral Implantol 2009;35:270-6. https://doi.org/10.1563/1548-1336-35.6.270
  14. Fazel A, Aalai S, Rismanchian M. Effect of macro-design of immediately loaded implants on micromotion and stress distribution in surrounding bone using finite element analysis. Implant Dent 2009;18:345-52. https://doi.org/10.1097/ID.0b013e31819cd938
  15. Freitas AC Jr, Bonfante EA, Giro G, Janal MN, Coelho PG. The effect of implant design on insertion torque and immediate micromotion. Clin Oral Implants Res 2012;23:113-8. https://doi.org/10.1111/j.1600-0501.2010.02142.x
  16. Engelke W, Decco OA, Rau MJ, Massoni MC, Schwarzwaller W. In vitro evaluation of horizontal implant micromovement in bone specimen with contact endoscopy. Implant Dent 2004;13:88-94. https://doi.org/10.1097/01.ID.0000116457.03989.01
  17. Steinebrunner L, Wolfart S, Ludwig K, Kern M. Implantabutment interface design affects fatigue and fracture strength of implants. Clin Oral Implants Res 2008;19:1276-84. https://doi.org/10.1111/j.1600-0501.2008.01581.x

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