Increased-Cure and Color Stable Dental Adhesives

Tech ID:
2008.003.HSCS

UT Health San Antonio researchers have developed a novel polyacrylate materials and/or light- and/or dual-cure resins that have low color and are color stable.  The resins also demonstrate an increased degree of cure.  The polyacrylate materials may be useful in dentistry applications as well as orthopedics and other biomedical applications.

 

Background:

Typically, self-cure and light-cure and dual-cure systems produce a yellow resin that continues to further yellow over time as the resin ages.  Because of the high degree of color and the significant color shift over time, self-cure and dual-cure resins are typically used as cements or in applications where esthetics is not a primary concern.  Light-cure systems are typically less yellow and offer improved color stability, but suffer from shrinkage stress.  Light-cure systems also suffer from incomplete cure, requiring time-intensive and high-cost procedures to reduce the potential for pulpal inflammation.

 

 Commercial Applications & Benefits:

The invention is applicable to the general Dentistry market and has both a light-cure and dual-cure component, allowing for use in a variety of products and applications.

  • Pit and fissure sealants
  • Composite restorative materials
  • Flowable composites
  • Dual-cure composite luting/restorative resins
  • Chemical cure bonding primers
  • Post and core buildup materials

 

 Additionally, it resolves the problems exhibited by current systems by providing the following benefits:

  • Low color resin having increased color stability over time
  • Increased degree of cure and reduced shrinkage stress
Category(s):
Dentistry
Materials
For information contact:
John Fritz
Sr. Business Development Manager
FRITZJA@UTHSCSA.EDU
210-562-4033
Inventors:
Kyumin Whang
H. Ralph Rawls
Nasser Barghi
Richard Plymate
Dong-Hoon Shin
Patent Information:

United States - Utility

Patent No.8,785,514

Status: Issued

Keywords:
Medical Devices