Mineralogic al stom atology as an interdisci plinary research field: recent results and development prospects

The contribution of bioorganic components in the deformation behavior of a rock-like biocomposite human tooth enamel is discussed. Uniaxial compression testing and Brazilian testing (diametral compression) in liquid nitrogen (77 K) and in air at room temperature were carried out on the samples cut from human tooth enamel. It was compared with deformation behavior of some rocks (granite, serpentinite, and jasper) and plasma-sprayed Al2O3 under compression and Brazilian testing in air at room temperature. It was shown that enamel and the rocks exhibit the viscoelastic-like deformation behavior under compression, whereas their macroscopic response becomes brittle under tensile stress. Fracture surface morphology was attested as brittle in all model materials, although cracks in them all advance by the viscoelastic-like manner as a crack in a ductile metal. The contribution of viscoelastic bioorganic component in deformation behavior of enamel is detected at room temperature only because bioorganic component leaves the viscoelasticity at low temperatures. However, this contribution does not lead to changing the character of deformation behavior of the rock-like biocomposite in comparison with these rocks.

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Modern Approaches for Diagnostics and Treatment of Orbital Fractures

Абдулкеримов¹,

Мандра²,

Mandra

et al. 2019

Actual Problems in Dentistry

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Importance. Fractures of the orbital walls in structure of craniofacial traumatic injures occupy a special place and occur in more than 40 %. The complexity of the structure, the proximity of the vision organ location causes difficulties in diagnostics and treatment of these patients. Often surgical treatment is carried out with using of standard implants that must be manually and directly modeled during the surgical intervention. Such numerous manipulations with implant develop negative effect on strength, that reduces predictability of the results and causes various postoperative complications in 20 % of cases. The goal — is to conduct a systematic analysis of domestic and foreign literary sources to determine development prospects, improve diagnostic methods and treat orbital fractures. Methodology. A case-control or cohort study was reviewed with a very low risk of mixing effects and average probability of causal relationship. Conclusions. Surgical treatment of fractures of the facial middle zone, the orbital walls is a difficult task for surgeons. The great number of reconstructive materials and implants on the market provide a wide range of choices depending on the preferences of the surgeon and patient, that’s based on the specific clinical situation. However determining the ideal material for reconstructing of orbital walls is still an open question. Results. Digital and additive technologies have great perspectives in diagnostic and treatment of trauma of the face middle zone. However a number of tasks requires to introduce and adapt rapid prototyping technologies in practical healthcare, which will allow significant progress in the diagnostics and treatment of facial skeleton fractures.

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Mineralogic al stom atology as an interdisci plinary research field: recent results and development prospects

Cited by 3 publications

References 27 publications

Raman hypermapping of human teeth: Analysis and statistical approaches

Raman hypermapping of human teeth: Analysis and statistical approaches

Common Features of Deformation Behavior Between Human Tooth Enamel and Rocks

Modern Approaches for Diagnostics and Treatment of Orbital Fractures

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