A temporary filling material used for coronal sealing during endodontic treatment may cause tooth fractures in large Class <scp>II</scp> cavities <i>in vitro</i>

Tennert, Christian; Eismann, M.; Goetz, Falko; Woelber, Johan Peter; Hellwig, Elmar; Polydorou, Olga

doi:10.1111/iej.12280

Cited by 18 publications

(21 citation statements)

References 15 publications

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“…A similar result, but in a more diminished percentage, namely 85% of the total teeth, was obtained by Tennert et al (C. TENNERT & al. [5]).…”

Section: Discussionmentioning

confidence: 99%

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Comparative analysis of the temporary obturation materials applied to M-O-D cavities in endodontically treated teeth

Scărlătescu¹,

Pharmacy²,

Suciu³

et al. 2019

Rom Biotechnol Lett.

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The temporary restorative filling protects the endodontically treated teeth against leakeage till the final coronal restauration. The aim of this study was to assess three temporary obturation materials (Coltosol F,Coltene/Whaledent Inc., Switzerland; Kavitan Plus, Spofa Dental, Czech Republic; light-curing composite Herculite Ultra, Kerr), after inserting them in large, mesio-occlusal-distal (M-O-D) type cavities of endodontically treated teeth. The teeth were submerged in water at 37º for 14 days. The number of fracture lines emerged on the surface of the material was noted down each day, the intercuspidal distance (ICD) was measured every 2 days, after that the coronal fillings were studied under the endodontic microscope, at a 8X magnification. All teeth, except those filled with composite, showed cracks within the material. In Coltosol F group 53% showed cracks within the teeth structure, 61,53% showed an increase of the ICD and the crown of a tooth fractured the second day after applying the material into the cavity. 38% of teeth in Kavitan Plus group showed cracks within the tooth structure, but no change in ICD, while 15,38% of teeth in composite group showed cracks within the tooth structure and no change in ICD. It appears that the hygroscopic expansion of the Coltosol F in the MOD cavities produced a degree of deflection of the cuspids, while the masticatory forces may worsen this situation. Kavitan Plus and Herculite Ultra can be considered more suitable temporary restorative filling materials in endodontically treated teeth.

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“…A similar result, but in a more diminished percentage, namely 85% of the total teeth, was obtained by Tennert et al (C. TENNERT & al. [5]).…”

Section: Discussionmentioning

confidence: 99%

“…Tennert et al, 2015 have noticed a higher number of root cracks (61%) compared to those obtained in our study (C. TENNERT & al. [5]).…”

Section: Discussionmentioning

confidence: 99%

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Comparative analysis of the temporary obturation materials applied to M-O-D cavities in endodontically treated teeth

Scărlătescu¹,

Pharmacy²,

Suciu³

et al. 2019

Rom Biotechnol Lett.

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show abstract

“…; Tennert et al. ), pointing out that intact natural teeth show superior fracture strength than endodontically treated teeth (Pradeep et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…Indeed, several dentists have emphasized the risk of tooth fracture following endodontic treatments (e.g. Batur et al 2013;Taha et al 2014;Tennert et al 2014), pointing out that intact natural teeth show superior fracture strength than endodontically treated teeth (Pradeep et al 2013). Furthermore, we observed that the EDJ might play an important role to decrease tensile stresses in the crown, as also argued by other scholars (e.g.…”

Section: Clinical Relevancementioning

confidence: 99%

Exploring the biomechanics of taurodontism

et al. 2014

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Taurodontism (i.e. enlarged pulp chamber with concomitant apical displacement of the root bi/trifurcation) is considered a dental anomaly with relatively low incidence in contemporary societies, but it represents a typical trait frequently found in Neandertal teeth. Four hypotheses can be envisioned to explain the high frequency in Neandertals: adaptation to a specific occlusal loading regime (biomechanical advantage), adaptation to a high attrition diet, pleiotropic or genetic drift effects. In this contribution we used finite element analysis (FEA) and advanced loading concepts based on macrowear information to evaluate whether taurodontism supplies some dental biomechanical advantages. Loads were applied to the digital model of the lower right first molar (RM 1 ) of the Neandertal specimen Le Moustier 1, as well as to the digital models of both a shortened and a hypertaurodontic version of Le Moustier RM 1 . Moreover, we simulated a scenario where an object is held between teeth and pulled in different directions to investigate whether taurodontism might be useful for para-masticatory activities. Our results do not show any meaningful difference among all the simulations, pointing out that taurodontism does not improve the functional biomechanics of the tooth and does not favour para-masticatory pulling activities. Therefore, taurodontism should be considered either an adaptation to a high attrition diet or most likely the result of pleiotropic or genetic drift effects. Finally, our results have important implications for modern dentistry during endodontic treatments, as we observed that filling the pulp chamber with dentine-like material increases tooth stiffness, and ultimately tensile stresses in the crown, thus favouring tooth failure.

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2016

Diagnosing Dental and Orofacial Pain

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A temporary filling material used for coronal sealing during endodontic treatment may cause tooth fractures in large Class II cavities in vitro

Abstract: Coltosol(®) F, when used alone as a restorative material, led to tooth fractures in Class II cavities in teeth undergoing root canal treatment. Tooth fractures may occur 4 days after placement of the filling.

Cited by 18 publications

References 15 publications

Comparative analysis of the temporary obturation materials applied to M-O-D cavities in endodontically treated teeth

Comparative analysis of the temporary obturation materials applied to M-O-D cavities in endodontically treated teeth

Exploring the biomechanics of taurodontism

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