The key elements of conducting load-to-fracture mechanical testing on restoration-tooth units in restorative dentistry

Balázs Szabó P.; Tekla Sáry; Balázs Szabó

doi:10.14232/analecta.2019.2.59-64

Authors

Balázs Szabó P. University of Szeged, Faculty of Engineering
Tekla Sáry University of Szeged, Faculty of Dentistry
Balázs Szabó University of Szeged, Faculty of Dentistry

DOI:

https://doi.org/10.14232/analecta.2019.2.59-64

Keywords:

mechanical testing, fracture resistance, fracture pattern, restored tooth, load-to-fracture

Abstract

Biomimetic restorative dentistry strives to replace lost tooth tissue by biomaterials with similar physical properties. In order to do so, mechanical testing of dental restorative materials on their own and later in dental cavities is highly important. During this process dentists and engineers are collaborating aiming to set the indications of certain restorative materials and application techniques. In vitro fracture resistance testing of a restored tooth is one of the most important tests to be carried out during the indication setting process. However, for this specific test and received results to be valid for clinicians, the group conducting the tests must pay attention to mimic intraoral conditions as much as possible. The article aims at identifying the key elements of fracture resistance tests in dentistry. Adequately conducting this test is a prerequisite for later testing in in vivo conditions the restorative techniques that produced the best results among the in vitro tests.

Downloads

Download data is not yet available.

References

Bader JD, Martin JA, Shugars DA. Incidence rates for complete cusp fracture. Community Dent Oral Epidemiol. 2001 Oct;29(5):346-53.

Lassila L, Keulemans F, Säilynoja E, Vallittu PK, Garoushi S. Mechanical properties and fracture behavior of flowable fiber reinforced composite restorations. Dent Mater. 2018 Apr;34(4):598-606.

Alshahrani FA, Yilmaz B, Seidt JD, McGlumphy EA, Brantley WA. A load-to-fracture and strain analysis of monolithic zirconia cantilevered frameworks. J Prosthet Dent. 2017 Dec;118(6):752-758.

Sáry T, Garoushi S, Braunitzer G, Alleman D, Volom A, Fráter M. Fracture behaviour of MOD restorations reinforced by various fibre-reinforced techniques - An in vitro study. J Mech Behav Biomed Mater. 2019 Oct;98:348-356.

Le Bell-Rönnlöf AM, Lassila LV, Kangasniemi I, Vallittu PK. Load-bearing capacity of human incisor restored with various fiber-reinforced composite posts. Dent Mater. 2011 Jun;27(6):e107-15.

Plotino G, Buono L, Grande NM, Lamorgese V, Somma F. Fracture resistance of endodontically treated molars restored with extensive composite resin restorations. J Prosthet Dent. 2008 Mar;99(3):225-32.

Fráter M, Forster A, Keresztúri M, Braunitzer G, Nagy K. In vitro fracture resistance of molar teeth restored with a short fibre-reinforced composite material. J Dent. 2014 Sep;42(9):1143-50.

Hannig C, Westphal C, Becker K, Attin T. Fracture resistance of endodontically treated maxillary premolars restored with CAD/CAM ceramic inlays. J Prosthet Dent. 2005 Oct;94(4):342-9.

Szabó B, Eördegh G, Szabó PB, Fráter M. In vitro fracture resistance of root amputated molar teeth restored with overlay: a pilot study. Fogorv Szle. 2017:111-116.

Szabó B, Garoushi S, Braunitzer G, Szabó PB, Baráth Z, Fráter M. Fracture behavior of root-amputated teeth at different amount of periodontal support – a preliminary in vitro study. BMC Oral Health accepted manuscript.

Forster A, Sáry T, Braunitzer G, Fráter M (2016) In vitro fracture resistance of endodontically treated premolar teeth restored with a direct layered fiber-reinforced composite post and core. J Adhes Sci Technol 31:1454–1466. https://doi.org/10.1080/01694243.2016.1259758

Forster A, Braunitzer G, Tóth M, Szabó BP, Fráter M. In Vitro Fracture Resistance of Adhesively Restored Molar Teeth with Different MOD Cavity Dimensions. J Prosthodont. 2019 Jan;28(1):e325-e331.

Soares LM, Razaghy M, Magne P. Optimization of large MOD restorations: Composite resin inlays vs. short fiber-reinforced direct restorations. Dent Mater. 2018 Apr;34(4):587-597.

Scotti N, Coero Borga FA, Alovisi M, et al. Is fracture resistance of endodontically treated mandibular olars restored with indirect onlay composite restorations influenced by fiber post insertion? J Dent. 2012;40:814–820.

Fráter M, Forster A, Jantyik Á, Braunitzer G, Nagy K, Grandini S. In vitro fracture resistance of premolar teeth restored with fibre-reinforced composite posts using a single or a multi-post technique. Aust Endod J. 2017 Apr;43(1):16-22.

Fráter M, Forster A, Jantyik Á, Braunitzer G, Nagy K. Fracture strength of elastic and conventional fibre-reinforced composite intraradicular posts - an in vitro pilot study. Fogorv Szle. 2015 Dec;108(4):115-9.

Fráter M, Lassila L, Braunitzer G, Vallittu PK, Garoushi S. Fracture resistance and marginal gap formation of post-core restorations: influence of different fiber-reinforced composites. Clin Oral Investig. 2019 May 16.

Volom A, Fráter M. Transmural fiber reinforcement in order to restore the fracture resistance of large MOD cavities – a technical report. Fogorv Szle. 2019 Sept;112(3):82-86.

Deliperi S, Alleman D, Rudo D. Stress-reduced Direct Composites for the Restoration of Structurally Compromised Teeth: Fiber Design According to the "Wallpapering" Technique. Oper Dent. 2017 May/Jun;42(3):233-243.