https://publish.kne-publishing.com/index.php/fid/issue/feed 2026-01-05T10:38:01+00:00 Admin m.davvari@knowledgee.com Open Journal Systems <p><strong><em>Frontiers in Dentistry (Formerly known as :Journal of Dentistry of Tehran University of Medical Sciences (JDT))</em></strong>&nbsp;is the first Iranian dental journal in English.&nbsp;<strong><em>FD</em></strong>&nbsp;is an Open Access,&nbsp;Peer-Reviewed bimonthly journal published by Dental Research Center (DRC) of Tehran University of Medical Sciences which is a dynamic, rapidly growing research center.</p> <p>The Journal aims to publish novel and high quality relevant information written by peers to researchers and readers involved in all fields of dentistry, oral health sciences and related&nbsp;<span dir="LTR">interdisciplinaries,&nbsp;</span>strives to keep pace with the rapid growth of publications, and move on to the edge of knowledge in this field.</p> <p><strong data-stringify-type="bold">All the manuscripts should be submitted through the Journal Primary Website at <a href="https://fid.tums.ac.ir/index.php/fid/about/submissions">https://fid.tums.ac.ir/index.php/fid/about/submissions</a></strong></p> https://publish.kne-publishing.com/index.php/fid/article/view/20714 2026-01-05T10:38:01+00:00 Shubhankar Mehrotra none@none.com Rupali Agnihotri none@none.com

<p><strong>Objectives: </strong>Dentin hypersensitivity (DH), characterized by a short, sharp, and intense pain response to a stimulus, is the most commonly encountered patient complaint. Various in-office and at-home methods including the recently introduced nano-hydroxyapatite (n-HA) and zinc carbonate-hydroxyapatite (Zn-CHA)-based products reduce the DH discomfort. This study compared the effectiveness of commercially available n-HA and Zn-CHA toothpastes for occlusion of dentinal tubules for management of DH.</p> <p><strong>Materials and Methods: </strong>In this in vitro study, 40 tooth samples were randomly assigned to 4 groups (n=10): negative control): brushing without toothpaste,Aclaim n-HA toothpaste,Biorepair Zn-CHA toothpaste, andShyNM calcium sodium phosphosilicate (CSPS) toothpaste. After demineralization with 17% ethylenediaminetetraacetic acid, the mounted specimens were brushed with an electric pressure-sensitive toothbrush and the respective toothpaste. Occlusion of dentinal tubules was subsequently evaluated under a scanning electron microscope (SEM). Elemental composition of the occluding plug was analyzed by energy-dispersive X-ray spectroscopy (EDX).</p> <p><strong>Results: </strong>The test n-HA and Zn-CHAand the positive control (CSPS) groups revealed significantly higher tubular occlusion compared to the negative control group (p= 0.001). The highest tubular occlusion was achieved in n-HA and Zn-CHA groups (80%); while negative control showed no occlusion (0%). Elemental analysis of dentinal plug showed significant differences in carbon, oxygen, calcium, and phosphorus levels among the groups (p&lt;0.05).</p> <p><strong>Conclusion:</strong> The tubular occlusion capacity of Zn-CHA and n-HA were similar to CSPS-based toothpaste, and CHA in Zn-CHA enabled the formation of stable dentinal plugs.</p>

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