16SRDNA Sequencing of 30 Samples of Human Oral Microbial Samples by Tianjin Medical University

Completed

• Conditions: Sampling Methods; Oral Microbiome; Epidemiological Studies

• Registration Number: NCT06522841
• Lead Sponsor: Tianjin Medical University

Brief Summary

Study Objective:

To explore suitable sampling sites and methods for oral epidemiological surveys in large populations, we aim to compare the distribution of the oral core microbiome at different sites and using different sampling methods in a small sample of healthy individuals.

Main Question:

What is the distribution of the oral core microbiome at different sampling sites and using different sampling methods in orally healthy individuals?

Study Design:

Participants will be randomly selected from a population of orally healthy individuals. After explaining the study to the participants and obtaining informed consent, they will complete a consent form and be informed of the precautions. Samples will be collected using cotton swabs and curettes from the buccal surface of the lower right first molar and using cotton swabs from the left and right buccal mucosa. The samples will be placed in pre-numbered test tubes and sent to the laboratory for microbiome analysis.

Detailed Description

Not available

Study Timeline

• Study Start: 2021-09-01
• Primary Completion: 2021-12-02
• Study Completion: 2024-06-01
• Status Verified: 2024-07
• Study First Submitted: 2024-07-22
• Study First Submitted QC: 2024-07-22
• Last Update Submitted: 2024-07-22
• Study First Posted: 2024-07-26
• Last Update Posted: 2024-07-26

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• (1) People who had no oral diseases particularly caries, periodontitis, and oral mucosal diseases. (2) Teeth without previous restorations.

Exclusion Criteria

• (1) People who are pregnant. (2) People who suffer from severe systematic diseases, such as diabetes, immune system diseases, and genetic diseases. (3) People who have taken antibiotics within two weeks before sampling.(4) People who have had or currently receiving radiotherapy or chemotherapy. (5) People with complete or incomplete absence of dentition. (6) Individuals who smoke or have smoked within the past six months

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
16SRDNA sequencing of 30 samples of human oral microbial samples by Tianjin Medical University	2021.07 - 2021.12 Finalize research topic. 2021.12 - 2022.06 Complete bibliometric analysis. 2022.06 - 2022.12 Acquire data for analysis. 2022.12 - 2023.06 Obtain analysis results. 2023.06 - 2024.01 Complete and submit the thesis.	Four sites were assessed: the buccal mucosa on both sides and the buccal surfaces of the left and right mandibular first molars. Two sampling methods, swab and curette, were used to collect bacterial communities from healthy individuals. Specifically, buccal mucosa samples (n=10) and tooth surface samples (n=20) were analyzed using 16S rDNA gene sequencing. Bacterial signals were detected through fluorescence in situ hybridization (FISH), targeting the bacterial 16S rDNA gene. Metastats analysis and Wilcoxon test were used.

Trial Locations

Locations (1)

Tianjin Medical University School of Stomatology; 🇨🇳 Tianjin, Tianjin, China