ISRCTN ISRCTN18356310
DOI https://doi.org/10.1186/ISRCTN18356310
ClinicalTrials.gov (NCT) Nil known
Clinical Trials Information System (CTIS) Nil known
Protocol serial number 00001
Sponsor University of Lahore
Funder Investigator initiated and funded
Submission date
31/05/2025
Registration date
05/08/2025
Last edited
13/06/2025
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Gum disease is very common in Pakistani children. Along with the lack of dental hygiene awareness and regular checkups, deficiencies in micronutrients like vitamin C and D are also widespread among children. This study aimed to assess whether correcting the micronutrient deficiency alongside normal dental care would improve periodontal disease progression in school-age children.

Who can participate?
School-going children aged 4-12 years with no systemic illnesses

What does the study involve?
First visit (baseline): each child (and a parent) answers a short questionnaire about home dental habits, demographics, and vitamin deficiency and then has a dental checkup.
Group allocation:
Group A (control): professional ultrasonic scaling + dental hygiene advice.
Group B (vitamin C and D deficient group ): the same scaling and advice plus vitamin C & D supplements.
Follow-up visits: after 4 weeks and again after 8 weeks the dentists re-measure the Gingival Index and pocket depth. All children receive the same brushing advice at every visit.

What are the possible benefits and risks of participating?
Benefits: free dental scaling, personalised brushing tips, and (for Group B) free vitamin supplements that may reduce the severity of gum disease.
Risks: scaling can feel a little sensitive and vitamins can occasionally cause mild stomach upset, but no serious risks are expected. The university ethics board has stated that there is no disadvantage or risk for participants and families may leave the study at any time.

Where is the study run from?
Dental examinations take place in selected primary schools in Lahore and at the University Dental Hospital, University College of Medicine & Dentistry (UCMD), The University of Lahore (Pakistan).

When is the study starting and how long is it expected to run for?
September 2021 to February 2024

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Arooj ul Hassan, arooj.ulhassan@ucd.uol.edu.pk, aroojch678@hotmail.com

Contact information

Dr Arooj Ul Hassan
Public, Scientific, Principal investigator

227-A, Military accounts
College Road
Lahore
54000
Pakistan

Phone +92 (0)3444420953
Email arooj.ulhassan@ucd.uol.edu.pk

Study information

Primary study designInterventional
Study designNon-randomized study
Secondary study designNon randomised study
Study type Participant information sheet
Scientific titleEffectiveness of Vitamin C and Vitamin D supplements in the treatment of periodontal diseases in school-going children
Study acronymEff-Vit-Per-Kids
Study objectivesAppropriate supplementation with Vitamin C and Vitamin D improves periodontal health in school-going children by reducing inflammation, enhancing immune response, and promoting tissue healing.
Ethics approval(s)Approved 17/01/2019, Institutional Review Board, Faculty of Allied Health Sciences, The University of Lahore, 1-Km, Defence Road Campus, Off Bhobatian Chowk, Lahore, 54000, Pakistan, +924235322501-12, info@uol.edu.pk, ref: IRB-UOL-FAHS/83511/2019
Health condition(s) or problem(s) studiedPeriodontal disease
InterventionCross-sectional phase 1 for baseline assessment followed by interventional phase 2 with modified RCT protocol among two groups (Group A with non-deficient children and group B with deficient children) to allow for intervention to only be given to children who were deficient, blinding done by switching of examiners between baseline assessment, intervention and follow-up examination.

First visit (baseline): each child (and a parent) answers a short questionnaire about home dental habits, demographics, and vitamin deficiency and then has a dental checkup.

Group allocation:
Group A (control): professional ultrasonic scaling + dental hygiene advice.
Group B (vitamin C and D deficient group): the same scaling and advice plus vitamin C and D supplements.
Follow-up visits: after 4 weeks and again after 8 weeks the dentists re-measure the Gingival Index and pocket depth. All children receive the same brushing advice at every visit.
Intervention typeSupplement
Primary outcome measure(s)

Gingival health measured using the Silness-Loe Gingival Index (GI) at baseline, 4 and 8 weeks

Key secondary outcome measure(s)

Probing depth measured using a Williams probe on a periodontal chart at baseline, 4 and 8 weeks

Completion date05/02/2024

Eligibility

Participant type(s)Learner/student
Age groupChild
Lower age limit4 Years
Upper age limit12 Years
SexAll
Target sample size at registration306
Total final enrolment200
Key inclusion criteria1. School-going children
2. No systemic diseases
3. Not taking antibiotic therapy
4. 4-12 years of age
Key exclusion criteria1. Participants with systemic disease like diabetes or otherwise immunocompromised
2. Participants taking antibiotics
Date of first enrolment01/10/2021
Date of final enrolment03/11/2021

Locations

Countries of recruitment

  • Pakistan

Study participating centre

University Dental Hospital, The University of Lahore
University Dental Hospital, Sultan Town
Lahore
54000
Pakistan

Results and Publications

Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
IPD sharing planThe datasets generated during and/or analysed during the current study will be available upon request from Dr Arooj ul Hassan (aroojch678@hotmail.com)

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

02/06/2025: Study's existence confirmed by the Institutional Review Board, University College of Dentistry.