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ArticleEvidence-based dentistry2025

Eggshell-derived hydroxyapatite as a biomaterial in dentistry: a scoping review of synthesis, properties and applications.

J Shanti Swarup, Rathika Thomas, Jessica Rucharitha, V R Arunkumar, Vasanthi V

Registry-linked trialAbstract readScoping Review
PubMed Publisher
In one paragraph

Article in Evidence-based dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07183514 (Clinical and Radiographic Evaluation of Eggshell-derived Calcium Hydroxyapatite Verses Calcium Hydroxide as In-direct Pulp Capping Agent in Permanent Molars), which is not on this map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07183514 nanot yet recruitingnot on this map

Clinical and Radiographic Evaluation of Eggshell-derived Calcium Hydroxyapatite Verses Calcium Hydroxide as In-direct Pulp Capping Agent in Permanent Molars

TypeinterventionalSponsorUniversity of Health Sciences LahoreRan2025 to 2026Enrolled54ConditionsIndirect Pulp CapArmseggshell-derived calcium hydroxyapatite, Calcium hydroxide
3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

J Shanti SwarupDepartment of Pediatric and Preventive Dentistry, TamilNadu Government Dental College and Hospital, Chennai, India. jsswarup@gmail.com.ORCID http://orcid.org/0000-0002-0837-3261
Rathika ThomasResearch assistant, TamilNadu Government Dental College and Hospital, Chennai, India.
Jessica RucharithaProject technical support, TamilNadu Government Dental College and Hospital, Chennai, India.
V R ArunkumarDepartment of Prosthodontics, Adhiparasakthi Dental college and Hospital, Chennai, India.
Vasanthi VDepartment of Oral Pathology, SRM Dental College, Chennai, India.

Funding

Indian Council of Medical Research (ICMR) IIRP-2023-7925
6 · The paper itself

Abstract

backgroundHydroxyapatite (HAp) derived from chicken eggshells has recently gained significant interest in tissue engineering and regenerative medicine. This paper aims to review the synthesis, properties and applications of eggshell-derived hydroxyapatite (E-HAp) in dentistry.

methodsA comprehensive literature search was conducted in PubMed and Scopus databases, along with a grey literature search. The references of selected studies were also manually reviewed to identify additional relevant articles. No restrictions were applied for language or publication year. Two independent reviewers carried out the study selection and data extraction processes.

resultsSeventeen studies met the inclusion criteria and were included in the qualitative analysis. Most studies were in vitro investigations focused on applications such as dentinal tubule sealing (n = 4) and remineralization of initial enamel caries lesions (n = 4). E-HAp was also studied for tissue engineering applications, including alveolar ridge preservation as a bone graft material (n = 5) and periodontal regeneration (n = 2). Additional applications included regenerative endodontics (n = 3) and use as a pulp capping agent (n = 2).

conclusionE-HAp shows a wide range of applications in dentistry, particularly in tissue engineering and regenerative dentistry, marking it as a promising biomaterial in dentistry.

Indexed as

Biocompatible MaterialsDentistryDurapatiteEgg ShellAnimalsChickensHumansTissue EngineeringBiocompatible MaterialsDurapatite

Identifiers

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.