The Relation Between Oral Hygiene and Microbial Load in the Oral Cavity After Restoring Primary Molars With Two Types of Ready-made Crowns

Recruiting now

Conditions studied: Carious Lesion, Ready-made Crowns

In brief

Following the restoration of primary molars with stainless steel and bioflex crowns, an evaluation of the current state of oral hygiene in relation to the amount of microorganisms and gingival health in the oral cavity will be carried out.

Key facts

Study ID

NCT06767670

Run by

Al-Azhar University

People needed

40

Starts

2026-10-05

Expected to finish

2027-10-01

Last updated by the study team

2026-05-12

Who can join

Age: 4 and older, up to 8. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Participants aged between 4 and 8 years.
• Pulp therapy treated primary molars on the contralateral side, requiring a full coverage restoration (split-mouth technique).
• No history of any antibiotic consumption 2 weeks before the procedure.
• No history of fluoride application 2 weeks before the procedure.

You may not qualify if…

• Special children with physical disabilities or emotional disturbances.
• Children are diagnosed with systemic diseases.
• Grossly destructed teeth with non-restorable crown structure.
• Primary teeth with shedding or pathological tooth mobility.

Where it is running

• Al-Azhar University — Cairo, Nasr City, Egypt (enrolling)
• Faculty of Dental Medicine at Al-Azhar University. — Cairo, Nasr City, Egypt

Full record on ClinicalTrials.gov

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