Method and composition for adhering to tooth structure

a technology of tooth structure and composition, applied in dental prosthetics, dental impression caps, dentistry, etc., can solve the problems of undesirable use of multi-step procedures, laborious and time-consuming multi-step procedures, etc., and achieve the effect of enhancing the adhesion of dental restorative materials

Inactive Publication Date: 2007-12-20
SANG JUNJIE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] It is another object of the invention to provide such a composition which will enhance adhesion of a dental restorative material to a dental surface.

Problems solved by technology

In practice, it has been found that such multi-step procedures are laborious and time consuming.
Hence, use of these procedures has been undesirable.

Method used

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  • Method and composition for adhering to tooth structure
  • Method and composition for adhering to tooth structure
  • Method and composition for adhering to tooth structure

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0046] This inventive composition was tested for shear bond strength (SBS) using a Single Plane Shear Test Assembly apparatus (SPSTA) as described by L. G. Watanabe, et al., in Journal of Dental Research, 76 (Special Edition) Abs. 1398, 1977 and / or other standard compressive shear bond strength test methods as described in U.S. Pat. No. 5,645,429 which is hereby incorporated by reference for such disclosure, and for example, in Dental Materials, vol. 3; 185, 1987 by Hammesfahr et al. The compositions tested included self curing (SC) and light curing (LC or VLC for “visible light cure”) materials. Further, the inventive materials were tested with etching or non-etching to dental surfaces as will be noted below, and were also compared to various commercially available adhesive products. As will be shown in the following tables, the inventive material shows comparable or improved results over the commercially available products. “SD” as used below is standard deviation, and “Del.” Is d...

example 2

[0048] Using the SPSTA test method, bond strength of different restorative materials to human teeth (dentin) using the inventive composition was evaluated and the results are shown in TABLE II.

TABLE II24 hr. Shear Bond Strength of Different Restorativesto Human Teeth Using The inventive CompositionBONDINGSURFACEInventive24 HourSUBSTRATETREATMENTCompositionRESTORATIVESShear Bond Strength (MPa)DentinEtchedSelf Cure (SC)SC Enforce ™WF11.20 ± 2.5880%DentinEtchedVisible LightSC Enforce ™WF13.93 ± 1.8175%Cure (VLC)DentinEtchedVisible LightSC Enforce ™WF15.47 ± 2.2775%Cure (VLC)DentinEtchedVisible LightVLC Enforce ™WF≧13.67 ± 2.64100%Cure (VLC)DentinUnetchedSelf Cure (SC)SC Enforce ™WF4.18 ± 2.910%DentinUnetchedVisible LightSC Enforce ™WF9.79 ± 3.060%Cure (VLC)DentinEtchedSelf Cure (SC)SC FluoroCore ™8.90 ± 3.033%DentinEtchedVisible LightVLC TPH ™31.34 ± 3.8210%Cure (VLC)SpectrumComposite

[0049] As can be seen from the SBS results in TABLE II (and TABLE III below) the inventive compositio...

example 3

[0050] Using the SBS test method as described in Dental Materials, Vol. 3; 185, 1987, and in the incorporated U.S. Pat. No. 5,645,429,24-hour enamel SBS of different restoratives used in direct and / or indirect restorations using the inventive composition was evaluated. The results are summarized in TABLE III.

TABLE III24 Hour SBS* of Different Restoratives to Human Tooth Using the Inventive CompositionBONDINGSURFACEINVENTIVE24 Hrs. SBS (MPa)SUBSTRATETREATMENTCOMPOSITIONRESTORATIVESX ± SD; Enamel Del(%)EnamelEtchedSelf Cure (SC)1SC Enforce ™WF126.8 ± 4.7100%EnamelEtchedVisible Light Cure2(VLC)VLC Enforce ™WF223.7 ± 4.8100%EnamelEtchedVisible Light Cure3(VLC)VLC TPH ™31.0 ± 8.080%Spectrum Composite3

*SBS was tested using Caulk's Compressive Shear Bond Strength Test Method

1Bonding Protocol-1 (total SC): Etched Enamel (Caulk 34% tooth gel / 15″) / P&B 2.1 & SC Activator (1 / 1 premix)[1C / wet, NC] / Enforce(SC)

2Bonding Protocol-2: Etched Enamel (Caulk 34% tooth gel 15″) / P&B 2.1 & SC Activator ...

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Abstract

A dental adhesive composition has an adhesive component and an activator component. The adhesive composition has a volatile organic solvent component, one or more polymerizable (meth)acrylate compounds optionally containing fillers, and a polymerization photoinitiator. The adhesive component may also be a substantially homogeneous mixture of one or more polymerizable (meth)acrylate compounds and an effective amount of a photoinitiator, without a solvent. The activator component includes an aromatic sulfinate salt and an activator component solvent. A method for adhering a restorative to a dental surface includes preparing the surface for restoration; applying a mixture of an adhesive component and an activator component to the prepared cavity, thereby forming a coated cavity surface; and, applying a direct or indirect dental restorative to the coated cavity surface.

Description

RELATED APPLICATIONS [0001] This application is a continuation of pending U.S. Ser. No. 10 / 945,453 with a filing date of Sep. 20, 2004, which is a continuation-in-part of pending U.S. Ser. No. 09 / 107,913 with a filing date of Jun. 30, 1998.TECHNICAL FIELD [0002] The invention relates to adhesion of dental restoratives to teeth, porcelain, metals, amalgams and other dental surfaces. The invention provides a method and composition for adhering to such dental surfaces. Specifically, the inventive compositions include a (meth)acrylate adhesive component optionally containing one or more fillers, and a sulfinate salt activator component. The method according to the invention includes preparing the dental surface, applying the inventive material and then applying a dental restorative according to appropriate direct or indirect dental restoration procedures. BACKGROUND OF THE INVENTION [0003] It is most desirable, when filling a tooth cavity with a filling material, such as a polymerizable...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): A61K6/08A61K6/00A61K6/083A61K6/847A61K6/884
CPCA61K6/0023A61K6/05A61K6/083C08L33/04C08L75/16C08L33/00A61K6/30A61K6/847A61K6/887
InventorSANG, JUNJIEHAMMESFAHR, PAUL D.
OwnerSANG JUNJIE