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Interleukin-2 (IL-2), Interleukin-5 (IL-5) and Interleukin-17 (IL-17) Levels of Patients With Stainless Steel Crowns

Evaluation of IL-2, IL-5 and IL-17 Expression Levels in Saliva of Patients Treated With Stainless Steel Crowns

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06439095
Enrollment
12
Registered
2024-06-03
Start date
2024-09-10
Completion date
2025-04-15
Last updated
2025-06-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental Crown, Nickel Sensitivity, Saliva

Keywords

Saliva, Dental crown, Gene expression

Brief summary

The aim of this study is to investigate whether nickel hypersensitivity following stainless steel crown treatment in children aged 3-9 leads to an increase in IL-2, IL-5, and IL-17 levels by analyzing saliva samples. By doing so, the study seeks to prevent potential hypersensitivity reactions after stainless steel crown treatment. The main question it aims to answer is: Which interleukin level increases in the controls 1 week after stainless steel crowns are applied? Researchers will investigate whether there is a significant increase in interleukin levels in children's saliva before and after the procedure. Participants will: They will provide saliva samples before stainless steel crowns are applied They will visit the clinic after 1 week for check-ups and tests.

Detailed description

Expression levels of IL-2, IL-5 and IL-17 in the saliva of individuals aged 3-9 years who underwent stainless steel crown will be recorded before and after the procedure. Before the saliva sample collection procedure, the patient will be asked to rinse their mouth with sterile water and then spit into sterile plastic cups. After collecting approximately 5 ml of saliva, the saliva will be transferred to appropriate eppendorfs and stored at -40 degrees Celsius. For the second post-procedure, the same algorithms will be applied for saliva collection seven days after the crown procedure. Also ph value and ion levels of saliva will be measured.

Interventions

Expression levels of IL-2, IL-5 and IL-17 in the saliva of individuals aged 3-9 years who underwent stainless steel crown will be recorded before and after the procedure. Before the saliva sample collection procedure, the patient will be asked to rinse their mouth with sterile water and then spit into sterile plastic cups. After collecting approximately 3 ml of saliva, the saliva will be transferred to appropriate eppendorfs and stored at -40 degrees Celsius. For the second post-procedure, the same algorithms will be applied for saliva collection seven days after the crown procedure.

DIAGNOSTIC_TESTPh and ion level measurement of saliva

Salivary concentration of nickel, chrome ions will be measured using an atomic absorption spectrophotometer.

Sponsors

Yuzuncu Yil University
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
3 Years to 9 Years

Inclusion criteria

\*\*Inclusion Criteria:\*\* * Patients with teeth requiring stainless steel crowns due to having caries on two or more surfaces. * Pediatric patients between 3-9 years old \*\*

Exclusion criteria

\*\* * Patients having any dental materials, such as fillings, fissure sealants, root canal treatments, or space maintainers * Patients with known allergies to various foods and materials. * Patients with systemic diseases that affect the immune system. * Patients with a history of chemotherapy or radiotherapy.

Design outcomes

Primary

MeasureTime frameDescription
IL-2, IL-5, IL-17 Expression Level (Fold Change)Sample collection at baseline (Day 0) and 7 days after treatmentRelative gene expression analysis was performed using quantitative PCR (qPCR) with appropriate primers. The results were reported as fold change relative to baseline values.

Countries

Turkey (Türkiye)

Participant flow

Recruitment details

Participants were recruited from pediatric dental clinics and selected based on the need for stainless steel crown placement.

Pre-assignment details

Twelve patients were enrolled according to the study protocol and all twelve commenced the study.

Participants by arm

ArmCount
Stainless Steel Crown Group
Patients received stainless steel crowns, and salivary IL-2, IL-5, and IL-17 gene expression levels were measured at baseline and after 7 days.
10
Total10

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up2

Baseline characteristics

CharacteristicStainless Steel Crown Group
Age, Continuous6.4 Years
STANDARD_DEVIATION 1
Baseline IL-2, IL-5, and IL-17 Expression Status
Baseline IL-17 Expression (Relative Units)
1.0 Relative Expression Units
STANDARD_DEVIATION 0.2
Baseline IL-2, IL-5, and IL-17 Expression Status
Baseline IL-2 Expression (Relative Units)
1.0 Relative Expression Units
STANDARD_DEVIATION 0.1
Baseline IL-2, IL-5, and IL-17 Expression Status
Baseline IL-5 Expression (Relative Units)
1.0 Relative Expression Units
STANDARD_DEVIATION 0.15
Race and Ethnicity Not Collected— Participants
Sex: Female, Male
Female
6 Participants
Sex: Female, Male
Male
4 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 10
other
Total, other adverse events
0 / 10
serious
Total, serious adverse events
0 / 10

Outcome results

Primary

IL-2, IL-5, IL-17 Expression Level (Fold Change)

Relative gene expression analysis was performed using quantitative PCR (qPCR) with appropriate primers. The results were reported as fold change relative to baseline values.

Time frame: Sample collection at baseline (Day 0) and 7 days after treatment

Population: Of 12 enrolled participants, data from 10 participants were included in the final analysis due to complete sample availability.

ArmMeasureGroupValue (MEAN)Dispersion
Stainless Steel Crown GroupIL-2, IL-5, IL-17 Expression Level (Fold Change)Day 7 IL-2 Expression (Fold Change)1.2 Fold ChangeStandard Deviation 0.4
Stainless Steel Crown GroupIL-2, IL-5, IL-17 Expression Level (Fold Change)Day 7 IL-5 Expression (Fold Change)1.8 Fold ChangeStandard Deviation 0.3
Stainless Steel Crown GroupIL-2, IL-5, IL-17 Expression Level (Fold Change)Day 7 IL-17 Expression (Fold Change)4.5 Fold ChangeStandard Deviation 1.7

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026