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 Penn studies find promise for innovations in liquid biopsies
30.03.2017 | University of Pennsylvania School of Medicine

nachricht 'On-off switch' brings researchers a step closer to potential HIV vaccine
30.03.2017 | University of Nebraska-Lincoln

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: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

'On-off switch' brings researchers a step closer to potential HIV vaccine

30.03.2017 | Health and Medicine

Penn studies find promise for innovations in liquid biopsies

30.03.2017 | Health and Medicine

An LED-based device for imaging radiation induced skin damage

30.03.2017 | Medical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>