Publications by authors named "Parichehr Zarean"

This study aimed to assess the amount of erosion during activated endodontic irrigation with either HEDP or EDTA via high-resolution micro-computed tomography. Two root canals of twenty premolars were prepared with ProTaper Next and irrigated with sodium hypochlorite. Palatal canals, which served as control groups, were sealed, while buccal canals were further irrigated with either EDTA (n = 10) or HEDP (n = 10), which served as test groups.

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Article Synopsis
  • * A new digital workflow using 3D scanning, CAD modeling, and 3D printing allows for the customized fabrication of presurgical plates for newborns, improving efficiency and patient safety.
  • * While the digital process takes longer overall, it significantly cuts down on manual labor and intervention time, and has the potential to revolutionize cleft care once cost barriers are addressed.
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The aim of this study was to assess the microcrack formation of moderately and severely curved root canals following instrumentation with Neoniti rotary files using micro-computed tomography. This in vitro study evaluated 18 extracted sound mandibular molars with two separate mesial canals and foramina in two groups (n = 9) with 5−20° (moderate) and 20−40° (severe) root canal curvature. The number of microcracks in the root canal walls was counted at baseline by micro-CT.

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Background: Internal bleaching is a choice of treatment in discolored endodontically treated teeth. Cervical root resorption is one of the important complications of this treatment. A suggested procedure to prevent this type of resorption is using a coronal barrier under the bleaching materials.

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Background: Various materials are used for vital pulp capping and the bond strength of restorative materials to these pulp-capping agents significantly affects the success rate of vital pulp therapy.

Objectives: The aim of this study was to determine the shear bond strength of a flowable composite resin and a single-component glass-ionomer to mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) cement and BiodentineTM as pulp-capping agents.

Material And Methods: Seventy-two cylindrical acrylic resin blocks, with a central hole 4 mm × 2 mm, were prepared.

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Introduction: Nowadays, implant insertion is accompanied by undesired consequences. As surgery techniques become more and more complex, an increase of intra- and post-op complications can be expected. Application of low-level laser (LLL) is one of the conservative approaches to control the complications with any side effects and low treatment costs.

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Background: Bacteria and their by-products are etiological factors for the failure of endodontic treatment. Reduction of root canal bacterial contamination is one of the chief aims of root canal therapy. The aim of this study was to compare the effects of different rotary file tapers and two irrigation fluids on counts.

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Introduction: Confidentiality is a basic ethical principle appreciating human autonomy, relationships, and dignity and in medical research has a long history. In dental practice, it has the same importance as medical field. Therefore, providing patients with information about the confidentiality will promote their confidence in dental professionals and prevent legal conflicts.

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