|
Sign In to gain access to subscriptions and/or personal tools.
|
Modified Surface-active Monomers for Adhesive Bonding to Dentin
S. Venz
American Dental Association Health Foundation, Paffenbarger Research Center
B. Dickens
Polymers Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
PMGDM, a PMDM-type adhesive monomer, was synthesized from pyromellitic dianhydride and glycerol dimethacrylate. Only the para isomer of PMDM, a solid, is used in dental adhesives. The adhesive monomer PMGDM is a liquid and consists of a mixture of para- and meta isomers.
This study shows that PMGDM has several advantages over PMDM. For example, the adhesive can be applied at a greater thickness, and additives and/or additional initiators for improved curing can be incorporated. Use of the liquid monomer PMGDM also provided a convenient means of varying the thickness of the adhesive layer between dentin and composite. The adhesive bonds were tested in both shear and tensile modes. PMDM was used as the control.
The reliability of the bonds, as judged from the Weibull modulus and Weibull characteristic strength, was improved by (1) use of more concentrated solutions of PMGDM adhesive, (2) use of an adhesive thickness of about 25 µm, and (3) modification of PMGDM with a diluent monomer which is expected to enhance the degree of cure and/or the dentin-wetting properties of the adhesive resin.
REFERENCES
- Asmussen E. (1982). Restorative resins: hardness and strength us. quantity of remaining double bonds. Scand J Dent Res 90:484-489.[Medline]
[Order article via Infotrieve]
- Blosser RL, Rupp NW, Stanley HR, Bowen RL (1989). Pulpal and micro-organism responses to two experimental dental bonding systems. Dent Mater 5:140-144.[CrossRef][Medline]
[Order article via Infotrieve]
- Bowen RL (1965). Adhesive bonding of various materials to hard tooth tissues: method of determining bond strength. J Dent Res 44:690-695.[Free Full Text]
- Bowen RL, Cobb EN, Rapson JE (1982). Adhesive bonding of various materials to hard tooth tissues: improvement in bond strength to dentin. J Dent Res 61:1070-1076.[Abstract/Free Full Text]
- Bowen RL, Tung MS, Blosser RL, Asmussen E. (1987). Dentin and enamel bonding agents. Int Dent J 37:158-161.[Medline]
[Order article via Infotrieve]
- Chai H. ( 1988). Shear fracture. Int J Fract 37:137-159.
- Eick JD, Robinson SJ, Cobb CM, Chappell RP, Spencer P. (1992). The dentinal surface: its influence on dentinal adhesion. Part II. Quint Int 23:43-51.
- Miller I., Freund JE (1965). Probability and statistics for engineers. Englewood Cliffs (NJ): Prentice-Hall, Inc., 214-217. Nakabayashi N. (1982). Resin reinforced dentine due to infiltration of monomers into dentine at the adhesive interface. J Jpn Dent Mater 1:78-86.
- Weibull W. (1939). A statistical theory of the strength of materials. Ingeniorsvetenskapsaakademienshandlingarno. 151. Stockholm (Sweden): Generalstabens Litografiska Anstalts Verlag.
Journal of Dental Research, Vol. 72, No. 3,
582-586 (1993)
DOI: 10.1177/00220345930720030501
 CiteULike  Complore  Connotea  Del.icio.us  Digg  Reddit  Technorati  Twitter What's this?
This article has been cited by other articles:
|
|
|
|
 
G. E. Schumacher, J. M. Antonucci, J. N.R. O'Donnell, and D. Skrtic
The use of amorphous calcium phosphate composites as bioactive basing materials: Their effect on the strength of the composite/adhesive/dentin bond
J Am Dent Assoc,
November 1, 2007;
138(11):
1476 - 1484.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
R.L. Bowen, P.S. Bennett, R.J. Groh, M. Farahani, and E. Eichmiller
New Surface-active Comonomer for Adhesive Bonding
Journal of Dental Research,
January 1, 1996;
75(1):
606 - 610.
[Abstract]
[PDF]
|
|
|
|
|
