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CompletedNCT04228861Updated Jan 18, 2020

Investigation of Oral Microflora of Infants

An observational study in Streptococcus Mutans, sponsored by Inonu University. Completed at 1 site in Turkey. Open to participants aged 30 Minutes to 2 Hours, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-01-18.

Sponsored by Inonu University · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
47
Ages
30 Minutes to 2 Hours
Sex
All
01

Study summary

The placement of cariogenic microorganisms in oral microflora is an important factor in dental caries. The aim of this study is to research from whom, when and how the cariogenic microorganisms are first transmitted to the infant. The investigators investigated of colonization of Streptococcus mutans, Lactobacillus spp., and Candida spp. in oral cavities of infants and their transmission to the infants.

Read the detailed description

Study sample size and design: When α = 0.05, 1-β (power) = 0.80 were taken to determine the sample volume, it was calculated that at least 46 babies should be sampled for 6 months to have an average amount of S. mutans change of 1.87 units. Considering the losses that may occur during the follow-up, the study was started by taking samples from 60 systemically healthy newborns.

The study commenced with 60 newborns and was completed with 47 infants due to losses during the follow-up. Oral swab samples were taken from 47 healthy infants within the first 24 hours after birth, at 1 month old and during the first tooth eruption. Saliva samples were taken from the mothers of all the infants and from the fathers of 20 of the infants in the last meeting.

Last interview with the parents, their oral examinations were performed, and their findings were processed as decayed (D), filled (F) and missing (M) teeth in accordance with the World Health Organization criteria, with the DMF (decayed, missing and filled) index being calculated. Furthermore, saliva samples were taken from the parents at the last interview. A questionnaire form including the sex of the infant, type of delivery, birth weight, and nutritional habits of the infant during the follow-up was filled in by gaining information from the parents on the first day and during the follow-ups.

Swab samples taken from infants with sterile swabs were transferred to the laboratory by placing sterile saline solution into dispensed 2 ml screw cap tubes. Sterile urine collection containers of 50 ml were used to collect saliva samples from the parents.

02

Conditions studied

  • Streptococcus Mutans

Keywords

  • Familial transmission
  • Candida
  • Lactobacillus
  • S. mutans
  • newborn
03

In context

Lead sponsor

Inonu University is the lead sponsor of 375 studies on the registry; 86 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
30 Minutes to 2 Hours
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

This study was conducted in two centers - Turgut Özal Medical Center and Malatya Training and Research Hospital. Between January and May 2018, healthy newborns born in these two hospitals were followed up.

Inclusion criteria

  • none of the infants or their families had systemic disease

Exclusion criteria

Exclusion Criteria:

  • the infants or their families have systemic disease
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
47 participants (actual)
Target follow-up
1 Year
Patient registry
Yes
Biospecimen retention
Samples with dna
06

What researchers measure

Primary outcomes

  1. Acquisition of the oral streptococcus mutans in infants

    Counts of oral streptococcus mutans

    Time frame: first 24 hours after birth

  2. Acquisition of the oral streptococcus mutans in infants

    Counts of oral streptococcus mutans

    Time frame: at 1 month old

  3. Acquisition of the oral streptococcus mutans in infants

    Counts of oral streptococcus mutans

    Time frame: 4 to 12 months depending on the first tooth eruption.This period changed according to the growth rate of the baby

Secondary outcomes

  1. Acquisition of the oral Lactobacillus and candida spp. in infants

    Counts of oral Lactobacillus and candida spp

    Time frame: first 24 hours after birth

  2. Acquisition of the oral Lactobacillus and candida spp. in infants

    Counts of oral Lactobacillus and candida spp

    Time frame: at 1 month old

  3. Acquisition of the oral Lactobacillus and candida spp. in infants

    Counts of oral Lactobacillus and candida spp

    Time frame: 4 to 12 months depending on the first tooth eruption.This period changed according to the growth rate of the baby

07

Study locations

1 site
  • Inonu university
    Malatya, 44280, Turkey
08

References and documents

Individual participant data

Plan to share: Undecided — I can think of sharing after becoming a publication in a journal

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 18, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04228861
Lead sponsor
Inonu University
Responsible party
Zehra Beyza Erel (research assistant, Inonu University) — Principal investigator
First posted
Jan 14, 2020
Start date
Jan 1, 2018
Primary completion
May 20, 2018
Completion
Jan 25, 2019
Last update
Jan 18, 2020

Study contacts

gülsüm duruk
study director · Inonu University
zehra b erel
principal investigator · Inonu University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2020. You cannot join it, but the record below documents what was studied.

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