|
Sign In to gain access to subscriptions and/or personal tools.
|
Tensile Properties of Resin-infiltrated Demineralized Human Dentin
H. Sano
Department of Operative Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
T. Takatsu
Department of Operative Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
B. Ciucchi
Department of Restorative Dentistry and Endodontics, University of Geneva, Switzerland
C.M. Russell
Office of Biostatistics and Department of Oral Diagnosis and Patient Services, Medical College of Georgia, Augusta
D.H. Pashley
Department of Oral Biology, School of Dentistry, Medical College of Georgia, Augusta, GA 30912-1129
The ability of adhesive resins to restore the physical properties of demineralized dentin has not been well-documented. The unfilled resins that are used for adhesion have relatively low moduli of elasticity and limited ability to increase dentin stiffness, although they may increase the ultimate tensile strength of dentin. This study tested the hypothesis that resin infiltration of demineralized dentin can restore its tensile properties to those of mineralized dentin. Small (ca. 0.5 mm thick x 0.5 mm wide) specimens of demineralized human dentin were infiltrated with one of five different dentin bonding resins over many hours, to determine how these resins altered the tensile properties of dentin. Tensile stress and strain were measured in these and control (mineralized and demineralized) specimens until their ultimate failure. The results indicate that some adhesive resins, after infiltrating demineralized dentin, can restore and even exceed the ultimate tensile strength of mineralized dentin. These resins increased the modulus of elasticity of resin-infiltrated dentin to values equal to or greater than those of the resins but far below those of mineralized dentin. Although the conditions in this experiment were far removed from the manufacturer's recommendations or clinical practice, the results support the potential of resin infiltration for reinforcing dentin.
Key Words: dentin • collagen • resins • tensile strength
REFERENCES
- Akimoto T., Kadoma Y., Imai Y. ( 1990). Study on adhesion mechanism of MMA-TBBO resin to dentin. A model experiment using decalcified dentin. Jpn J Soc Dent Mater & Devices 9:320-325.
- Akimoto T. (1991). Study of adhesion of MMA-TBBO resin to dentin. Jpn J Soc Dent Mater & Devices 10:42-54.
- Berkovitz Bkb, Boyd A., Frank RM, Hohling HJ, Moxham BJ, Nalbandian J., et al. (1989). Teeth. New York: Springer-Verlag, p. 175.
- Bowen RL, Rodriguez MS (1962). Tensile strength and modulus of elasticity of tooth structure and several restorative materials. J Am Dent Assoc 64:378-387.[Medline]
[Order article via Infotrieve]
- Braden M. (1976). Biophysics of the tooth. In: Frontiers in oral
- physiology. Kawamura Y, editor. Vol. 2. Basel: S. Karger AG, pp. 1-37.
- Curray JD (1964). Three analogies to explain the mechanical properties of bone. Biorheology 2:1-10.
- Huang T.-JG, Schilder H., Nathanson D. (1992). Effect of moisture content and endodontic treatment on some mechanical properties of human dentin. J Endodont 18:209-215.[Medline]
[Order article via Infotrieve]
- Imai Y., Kadoma Y., Kojima K., Akimoto T., Ikakura K., Ohta T. ( 1991). Importance of polymerization initiator systems and interfacial initiation of polymerization in adhesive bonding of resin to dentin. J Dent Res 70:1088-1091.
- Katz JL ( 1971). Hard tissue as a composite material. I. Bounds on the elastic behavior. J Biomechan 4:455-473.[CrossRef][Medline]
[Order article via Infotrieve]
- Lee HL, Swartz ML (1970). Surface preparation and various adhesive resins. In: Adhesion in biological systems. Manly RS, editor. New York: Academic Press, pp. 269-289.
- LeGeros RZ (1991). Calcium phosphates in oral biology and medicine. Vol. 15. Monographs in oral science. Myers H, editor. New York: Karger, pp. 109-110.
- Lehman MI (1967). Tensile strength of human dentin. J Dent Res 46:197-201.
- Marshall GW (1993). Dentin: Microstructure and characterization. Quintessence Int 24:606-617.[Medline]
[Order article via Infotrieve]
- Mjor IA ( 1983). Reaction patterns in human teeth. Boca Raton, FL: CRC Press, Inc., p. 73.
- Nakabayashi N., Nakamura M., Yasuda N. (1991). Hybrid layer as a dentin-bonding mechanism. J Esthet Dent 3:133-138.[Medline]
[Order article via Infotrieve]
- Pashley DH, Ciucchi B., Sano H., Horner JA (1993). Permeability of dentin to adhesive resins. Quintessence Int 24:618-631.[Medline]
[Order article via Infotrieve]
- Rigby JB, Hirai H., Spikes JD, Eyring H. (1959). The mechanical properties of rat tail tendon. J Gen Physiol 43:265-283.[Abstract/Free Full Text]
- Sano H., Ciucchi B., Matthews WG, Pashley DH (1994a). Tensile properties of mineralized and demineralized human and bovine dentin. J Dent Res 73:1205-1211.
- Sano H., Shono T., Sonoda H., Takutsu T., Ciucchi B., Carvalho R., et al. (1994b). Relationship between surface area for adhesion and tensile bond strength: Evaluation of a microtensile bond test. Dent Mater 10:236-240.[Medline]
[Order article via Infotrieve]
- Soderholm K-JM (1985). Filler systems and resin interface, In: Posterior composite resin dental restorative materials. Vanherle G, Smith DC, editors. The Netherlands: Peter Szulc Publishing Co., pp. 139-159.
- Tagami J., Nakajima M., Shono T., Takatsu T., Hosoda H. (1993). Effects of aging on dentin bonding. Am J Dent 6:145-147.[Medline]
[Order article via Infotrieve]
- Van Meerbeek B., Willems G., Celis JP, Roos JR, Braem M., Lambrechts P., et al. (1993). Assessement by nanoindentation of hardness and elasticity of the resin-dentin bonding area. J Dent Res 72:1434-1442.
Journal of Dental Research, Vol. 74, No. 4,
1093-1102 (1995)
DOI: 10.1177/00220345950740041001
 CiteULike  Complore  Connotea  Del.icio.us  Digg  Reddit  Technorati  Twitter What's this?
This article has been cited by other articles:
|
|
|
|
 
T. Yoshikawa, H. Sano, M.F. Burrow, J. Tagami, and D.H. Pashley
Effects of Dentin Depth and Cavity Configuration on Bond Strength
Journal of Dental Research,
April 1, 1999;
78(4):
898 - 905.
[Abstract]
[PDF]
|
|
|
|
|
|
|
H. Sano, T. Yoshikawa, P.N.R. Pereira, N. Kanemura, M. Morigamui, J. Tagami, and D.H. Pashley
Long-term Durability of Dentin Bonds Made with a Self-etching Primer, in vivo
Journal of Dental Research,
April 1, 1999;
78(4):
906 - 911.
[Abstract]
[PDF]
|
|
|
|
|
|
|
K.T. Maciel, R.M. Carvalho, R.D. Ringle, C.D. Preston, C.M. Russell, and D.H. Pashley
The Effects of Acetone, Ethanol, HEMA, and Air on the Stiffness of Human Decalcified Dentin Matrix
Journal of Dental Research,
November 1, 1996;
75(11):
1851 - 1858.
[Abstract]
[PDF]
|
|
|
|
|
|
|
F.R. Tay, A.J. Gwinnett, K.M. Pang, and S.H.Y. Wei
Resin Permeation into Acid-conditioned, Moist, and Dry Dentin: A Paradigm using Water-free Adhesive Primers
Journal of Dental Research,
April 1, 1996;
75(4):
1034 - 1044.
[Abstract]
[PDF]
|
|
|
|
|
|
|
D.H. Pashley
Dynamics of the Pulpo-Dentin Complex
Critical Reviews in Oral Biology & Medicine,
January 1, 1996;
7(2):
104 - 133.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
