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Novel Polymer Matrix for Dental Applications

Award Number: R43DE024013
ORGANIZATION: NATIONAL INSTITUTE OF DENTAL AND CRANIOFACIAL RESEARCH
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 08/01/2014
PERIOD OF PERFORMANCE END DATE: 01/31/2017

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Novel Polymer Matrix for Dental Applications - DESCRIPTION (provided by applicant): Dental caries are the most common childhood disease in the United States. Dental sealants are materials that are applied to the pits and fissures of healthy teeth to prevent dental caries or other forms of decay. This method prevents bacteria ingress and acid dissolution and targets the portions of the tooth surface where ~90% of the decay develops. Peer-reviewed research incontrovertibly substantiates that sealants are safe and effective in preventing caries on both primary and permanent teeth (> 90% reduction in caries on the sealed surface). The application of sealants is minimally invasive, painless and is typically well-accepted by patients, and sealants are a valuable tool to reduce overall dental care costs. Two major classes of materials have been used as sealants: glass ionomers and resins based sealants. Glass ionomers release fluoride that provides some antimicrobial and re-mineralization activity; however they have a higher water uptake, poorer retention and higher micro-leakage scores. Photo-curable methacrylate-based resins have better retention but failures rates are still unacceptably high; they de-bond and chip off the tooth surface within a few years from application and don't last through childhood. A significant increase of the sealant's lifetime is required to make this preventive treatment more cost- effective. Premature sealant loss reduces the effectiveness of this preventive treatment and it is one of the reasons why it is underused in the U.S., where less than 50% of children receive it. It is believed that poor retention of methacrylate-based sealants is due to a combination of hydrolytic degradation of the polymer matrix and mechanical failure, especially related to fatigue under the forces of mastication. The dental profession awaits the development of a modern, more durable, resin-based sealant. This research will develop a novel polymer matrix for sealants that is characterized by excellent mechanical properties under cyclic fatigue, near-zero polymerization shrinkage, and which is not sensitive to hydrolytic degradation in the oral environment. Aside from improving pediatric health, the economic stakes for U.S. health services are staggering; Medicaid dental expenditures for children alone is projected to increase from $4.8 billion in 2010 to more than $12.6 billion in 2020. Since the majority of this spending is for treating caries, the development of a new class of durable, expanded lifetime dental sealant materials that provide more effective and more widely adopted prevention could significantly reduce these expenses. If sealants with an optimal retention rate are developed, the cost of this preventive treatment will be low compared to its benefit, especially considering that implementation can be carried out by adjunct dental personnel in private dental offices or off-site public health initiatives. The need or novel and improved dental sealants is therefore significant. Further, the demand for pit and fissure sealants is expected to growth by more than 7% annually driven by increased acceptance by dentists and patients and new legislation that provides broader access to preventive dental care.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2020 ( Subtotal = -$2 )
2020	2014	TDA RESEARCH, INC.	12345 W 52ND AVE	WHEAT RIDGE	CO	80033	JEFFERSON	USA	Oral Diseases and Disorders Research	000	1	10/1/2019	NEW	-$2
														Subtotal = -$2

Issue Date FY: 2017 ( Subtotal = -$117 )
2017	2014	TDA RESEARCH, INC.	12345 W 52ND AVE	WHEAT RIDGE	CO	80033	JEFFERSON	USA	Oral Diseases and Disorders Research	000	1	7/5/2017	NEW	-$117
														Subtotal = -$117

Issue Date FY: 2016 ( Subtotal = $0 )
2016	2014	TDA RESEARCH, INC	12345 WEST 52ND AVENUE	WHEAT RIDGE	CO	80033	JEFFERSON	USA	Oral Diseases and Disorders Research	000	1	7/11/2016	NEW	$0
														Subtotal = $0

Issue Date FY: 2014 ( Subtotal = $182,536 )
2014	2014	TDA RESEARCH, INC	12345 WEST 52ND AVENUE	WHEAT RIDGE	CO	80033	JEFFERSON	USA	Oral Diseases and Disorders Research	000	1	7/30/2014	NEW	$182,536
														Subtotal = $182,536

Grand Total All Awards = $182,417

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Novel Polymer Matrix for Dental Applications

Award Number: R43DE024013

ORGANIZATION: NATIONAL INSTITUTE OF DENTAL AND CRANIOFACIAL RESEARCH

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 08/01/2014

PERIOD OF PERFORMANCE END DATE: 01/31/2017

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