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Clinical Trials/NCT07183514
NCT07183514Not yet recruitingNot Applicable

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

University of Health Sciences Lahore1 site in 1 country54 target enrollmentStarted: September 20, 2025Last updated:
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Not yet recruiting
Enrollment
54
Locations
1
Primary Endpoint
clinical symptoms (pain on percussion, tooth mobility) and radiographic evaluation

Study Overview

Brief Summary

This clinical trial will evaluate the effectiveness of eggshell-derived calcium hydroxyapatite compared to calcium hydroxide as indirect pulp capping agent in permanent teeth. A total of 54 teeth from healthy individuals aged 18 to 40 years will be randomly allocated into two groups:

Group A (experimental) treated with eggshell-derived calcium hydroxyapatite. Group B (control) treated with calcium hydroxide.

After caries removal the assigned pulp capping agent will be applied, and the teeth will be restored. Clinical and radiographic evaluations will be performed at 1 and 3 months to assess pulp vitality, symptom-free status, and periapical health.

Detailed Description

Dental caries is the most prevalent bacterial disease affecting both primary and permanent dentition. Modern dental practice emphasizes minimally invasive techniques that preserve pulp vitality. Indirect pulp capping is one such procedure, performed in teeth without signs of irreversible pulpitis, where infected dentine is removed while caries-affected dentine (CAD) is preserved and covered with a biocompatible material.

Calcium hydroxide remains the most widely used pulp capping material despite its shortcomings. Hydroxyapatite, a stable synthetic calcium phosphate ceramic, has demonstrated excellent biocompatibility. Eggshells are a natural, abundant source of calcium carbonates and oxides, making them a promising precursor for hydroxyapatite.

This randomized, double-blind clinical trial aims to evaluate and compare the clinical and radiographic outcomes of eggshell-derived calcium hydroxyapatite and calcium hydroxide as indirect pulp capping agents in permanent teeth with deep caries. Fifty-four teeth from healthy individuals aged 18-40 will be included. Random allocation will be performed using the lottery method.

Group A (experimental) will receive eggshell-derived calcium hydroxyapatite, while Group B (control) will receive calcium hydroxide. Following rubber dam isolation and chemo-mechanical caries removal with carie-fix gel, infected dentine will be removed using a spoon excavator while CAD is preserved. The allocated pulp capping agent will be placed over CAD, followed by restoration with glass ionomer cement (GC Gold Label II) and composite resin.

Clinical and radiographic assessments will be carried out at 1 month and 3 months. Clinical evaluation will include pulp vitality, pain on percussion, and mobility. Radiographic assessment will include reparative dentine thickness and absence of periapical pathology.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Double (Participant, Outcomes Assessor)

Eligibility Criteria

Ages
18 Years to 40 Years (Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Teeth with symptoms of reversible pulpitis.
  • Teeth that show positive response on electric pulp testing (EPT).
  • Teeth with caries penetrating up to three-quarters (¾) of dentine without pulp involvement.
  • Healthy cooperative patients of both sexes between 18 to 40 years of age.

Exclusion Criteria

  • Necrosed Teeth with radiolucency in the periapical and furcation regions.
  • Tooth with internal and external root resorption.
  • Periodontally compromised tooth. (BPE score 3 and above)
  • Physically and mentally handicapped patients. (ASA score 3 and above)

Arms & Interventions

eggshell-derived calcium hydroxyapatite

Experimental

Participants in this arm will receive indirect pulp capping with eggshell-derived calcium hydroxyapatite, followed by restoration with glass ionomer cement and composite resin.

Intervention: eggshell-derived calcium hydroxyapatite (Biological)

Calcium hydroxide

Active Comparator

Participants in this arm will receive indirect pulp capping with Calcium hydroxide, followed by restoration with glass ionomer cement and composite resin.

Intervention: Calcium hydroxide (Biological)

Outcomes

Primary Outcomes

clinical symptoms (pain on percussion, tooth mobility) and radiographic evaluation

Time Frame: 3 months

Evaluates absence of pain and pathological mobility, Measures dentine bridge thickness and absence of periapical pathology.

Secondary Outcomes

  • restoration success, post operative sensitivity(baseline to seven days)

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Arooj fatima

Post- graduate trainee in operative dentistry department PGMI Lahore

University of Health Sciences Lahore

Study Sites (1)

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