Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NYU dental researchers find link between C-section delivery and higher risk of cavities in newborns

24.08.2005


A new study by NYU dental researchers suggests that women with dental caries (cavities) who deliver Caesarean-section babies should pay special attention to their newborns’ oral health.

The NYU researchers focused on a caries-causing bacterium that mothers with caries transmit to their newborns. Known as Streptococcus mutans, the bacterium grows on tooth surfaces and in crannies between teeth just above the gum line, where it multiplies and converts foods, especially those containing sugar and starch, into acids that break into the tooth surface.

C-section deliveries were infected by the bacterium almost a year earlier than vaginally-delivered infants in the four-year study of 156 mother-infant pairs published in the September issue of the Journal of Dental Research. The first signs of the bacterium appeared at an average of 17.1 months of age in C-section babies, compared to 28.8 months in vaginally-delivered infants, a significant finding since previous studies have linked earlier bacterial infection with a higher rate of dental caries in children.



NYU’s study is the first to distinguish between bacterial infection in C-section and vaginally-delivered babies. The findings suggest that mothers who have dental caries should inform their family dentists if they had a C-section delivery because of the potentially higher risk that the child will also develop caries, said the study’s principal investigator, Dr. Yihong Li, an Associate Professor of Basic Science and Craniofacial Biology at NYU College of Dentistry.

"Vaginally-delivered infants offer oral bacteria a less hospitable environment," Dr. Li explained. "They develop more resistance to these bacteria in their first year of life, in part because of exposure to a greater variety and intensity of bacteria from their mothers and the surrounding environment at birth. C-section babies have less bacterial exposure at birth, and therefore less resistance."

Mothers in Dr. Li’s study who delivered C-section babies had high levels of Streptococcus mutans infection, and caries on an average of one-third of their teeth. A majority had an annual family income of $10,000 or less -- a potential barrier to accessing dental care – and a history of sexually transmitted disease. These cofactors contributed to an earlier onset of bacterial infection, Dr. Li said.

The study followed a predominantly African-American group of women from an inner-city area of Birmingham, Alabama, beginning in their third trimester of pregnancy. There were 127 vaginal and 29 C-section births.

Further study is needed to determine if C-section births can be linked to earlier acquisition of this and other oral bacteria in a broader cross-section of the population, and if a higher incidence of caries follows. The results of Dr. Li’s study add to a growing body of knowledge about a possible link between a mother’s level of tooth decay and her newborn’s health that was identified by NYU dental researchers in an earlier study of predominantly low-income African-American women in Birmingham, which found that pregnant women with high levels of oral bacteria associated with dental caries are at risk for delivering preterm low birth weight babies. Published last February in the Journal of Periodontology, that study was led by Dr. Ananda P. Dasanayake, an Associate Professor of Epidemiology & Health Promotion. Dr. Dasanayake is among a group of researchers in the U.S. and abroad who also have reported that periodontal diseases in pregnant women may be a risk factor for delivering preterm low birth weight babies.

Dr. Li’s coinvestigators on the C-section study were Dr. Dasanayake; Dr. Page W. Caufield, a Professor of Cariology and Operative Dentistry at NYU College of Dentistry; Dr. Howard W. Wiener, a Research Assistant at the School of Public Health of the University of Alabama at Birmingham; and Dr. Sten H. Vermund, a Professor of Epidemiology at the University of Alabama.

Elyse Bloom | EurekAlert!
Further information:
http://www.nyu.edu

More articles from Health and Medicine:

nachricht Hot cars can hit deadly temperatures in as little as one hour
24.05.2018 | Arizona State University

nachricht 3D images of cancer cells in the body: Medical physicists from Halle present new method
16.05.2018 | Martin-Luther-Universität Halle-Wittenberg

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

When corals eat plastics

24.05.2018 | Ecology, The Environment and Conservation

Surgery involving ultrasound energy found to treat high blood pressure

24.05.2018 | Medical Engineering

First chip-scale broadband optical system that can sense molecules in the mid-IR

24.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>