Publications by authors named "Marianne Leveque"

Regenerative endodontic procedures (REP) aim at reestablishing tooth vitality by replacing the irreversibly damaged dental pulp removed by the dental practitioner with a new functional one. The current treatment of advanced caries relies on the replacement of the inflamed or necrosed dental pulp with an inert filling material. This leads to a functional but non-vital tooth, which lacks the ability to sense dental tissue damage, and to protect from further bacterial attack.

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Article Synopsis
  • The study focuses on developing a standardized model for examining the early apical release kinetics of molecules from endodontic hydrogels used in regenerative endodontic procedures (REPs), which are designed to enhance tooth regeneration.
  • The researchers created Endodontic Release Inserts (ERIs) using 3D printing to simulate immature incisors and tested the release of different fluorescent molecules from various hydrogels in different media.
  • Results showed that increasing the diameter of the apical release sites and changing the medium to human serum significantly affected the release rates of the tested molecules, indicating the complexities involved in optimizing REPs for clinical use.
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Regenerative endodontic procedures (REPs) aim at recreating dental pulp tissue using biomaterials such as hydrogels. Their bioactivity is mostly related to the nature of biomolecules or chemical compounds that compose the endodontic hydrogel. However, many other parameters, such as hydrogel concentration, bioactive molecules solubility, and apex size, were reported to influence the reciprocal host-biomaterial relationship and hydrogel behavior.

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Background: The clinical results following regenerative endodontic procedures (REPs) vary according to numerous parameters, including the presence of bacteria. This limitation reduces the indications for REPs and calls for the development of next generation antibacterial strategies (NGAS) providing alternatives to current antibacterial strategies (CAS) such as double or triple antibiotic paste (DAP/TAP) and (Ca(OH)2).

Objectives: The present scoping review aims to describe the current trends regarding the use of such strategies and highlight future perspectives.

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Tinnitus is a public health issue in France. Around 1% of the population is affected and 30,000 people are handicapped in their daily life. The treatments available for disabling tinnitus have until now been disappointing.

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Mitochondrial DNA (mtDNA) mutations have been implicated in non-syndromic hearing loss either as primary or as predisposing factors. As only a part of the mitochondrial genome is usually explored in deafness, its prevalence is probably under-estimated. Among 1350 families with non-syndromic sensorineural hearing loss collected through a French collaborative network, we selected 29 large families with a clear maternal lineage and screened them for known mtDNA mutations in 12S rRNA, tRNASer(UCN) and tRNALeu(UUR) genes.

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Objectives: This article reports the creation of a Universal Newborn Hearing Screening (UNHS) program in a French region, Champagne-Ardenne, and the results of its first 27 months.

Materials And Methods: We introduced a UNHS program in all the Champagne-Ardenne maternities in order to screen all newborns in the region. We used a two-step strategy.

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Objectives: Benign paroxysmal positional vertigo (BPPV) is the most frequent vestibular disorder. Although it is easily cured with canal repositioning maneuvers for the majority of patients, it can be disabling in rare cases. For these patients, surgical solutions may be proposed.

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