Context: Knowledge about dentin microstructure is essential for execution of clinical procedures which require adhesion of materials to dentin. Aims: To evaluate by scanning electron microscopy (SEM) the dentin ultrastructure after demineralization with 6 M and 12 M hydrochloric acid (HCl). ...

Dentine, a complicated system containing macro, micro, and nano-features, is a part of the tooth which plays a critical role in responding to hypersensitivity, the mechanical strength of the tooth, and overall oral hygiene1–3. Dentine is a matrix of collagen fibers, bundles of nanocrystalline hydrox...

Aim: This in vitro study evaluated the degree of dentinal tubule occlusion and depth of penetration of nano-hydroxyapatite (nHAp) derived from chicken eggshell powder with and without the addition of 2% sodium fluoride (NaF) using scanning electron microscope (SEM) and confocal laser scanning micro...

Objective: The aim of this study was to evaluate in vitro the dentin tubule occluding effect of an 8% strontium acetate dentifrice (Sensodyne Rapid Relief) compared to patent dentin tubules using modern sample preparation, imaging, and analysis techniques. Methods: Etched dentin discs, either un...

Objectives The aim of this study was to assess in vitro the effects of two desensitising agents containing calcium phosphate and nano-hydroxyapatite, applied alone or with Nd:YAG laser, on dentin tubule occlusion, and to determine the penetration depth. Methods 75 extracted human 3rd molar te...

Dentinal tubules are the means by which the pulp and mineralised tissues surrounding the dentine (enamel and cementum) communicate. Through these tubules external agents can damage the pulp and subsequently the periodontal ligament. Given the importance of dentinal tubules, the authors evaluated the...

Aim: The purpose of the current research was to assess the permeability of three various desensitizing techniques on dentinal tubule occlusion using a scanning electron microscope (SEM). Materials and methods: For this research, 100 human sound premolar teeth that were extracted for orthodontic ...

Aim To evaluate dentin tubule numerical density variations below the CEJ. Methodology Three human non-carious permanent canines were sectioned parallel to the CEJ to obtain dentin disks 1 mm thick whose surfaces were 1 mm and 2 mm below the CEJ. Each disk was sectioned into quarters resulting...

To investigate age and site-related changes to human dentin collagen, sound human teeth collected from donors aged 13–29 (young) and 50–74 (aged) years (n = 9/group) were cut to shallow and deep sites. Dentin collagen orientation and fibril bundling was investigated using the Picrosirius Red (PSR) s...

Objective: The current study was carried out to evaluate the effects of laser and Systemp.desensitizer therapy. Further, scanning electron microscopy (SEM) was used to determine the effects of individual or combined desensitizers on human dentinal tubules. Background: The most common clinical condit...