The nano-hardness and elastic modulus of sound deciduous canine dentin and young premolar dentin—Preliminary study

  • Y. Hosoya
  • G. W. Marshall


The purpose of this study was to compare the nano-hardness and elastic modulus among deciduous and permanent dentin, buccal and lingual sides, incisal, center and cervical areas, and outer, middle and inner layers. Three premolars and three deciduous canines were bucco lingually (BL) sectioned, and three deciduous canines were mesio-distally (MD) sectioned parallel to the long axis at the center of the tooth. Hardness (H), plastic hardness (PH) and Young’s modulus (Y) were measured using a nano-indentation tester. The H, PH and Y values from the deciduous canine dentin were significantly lower than those from the premolar dentin at most sites. For deciduous canine dentin, the H and PH values of the MD sectioned dentin were significantly higher than those of the BL sectioned dentin in many layers of many areas. Generally deciduous canine dentin had H, PH and Y values that decreased from outer toward the inner layers and significant differences were obtained among the layers in many areas. For MD sectioned deciduous canine and BD sectioned premolar dentin, the H, PH and Y values of the cervical area were significantly lower than those of the incisal and center areas in many layers. It is possible that optimum bonding may require different treatments for deciduous and permanent dentin and perhaps also for different intratooth locations.


Polymer Elastic Modulus Center Area Lingual Side Cervical Area 
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  1. 1.
    G. W. MARSHALL JR, S. J. KINNEY and M. BALOOCH, J. Dent. 25 (1997) 441.Google Scholar
  2. 2.
    J. TAGAMI, L. TAO and D. H. PASHLEY, Dent. Mater. 6 (1990) 45.Google Scholar
  3. 3.
    C. PRATI and D. H. PASHLEY, Amer. J. Dent. 5 (1992) 33.Google Scholar
  4. 4.
    L. PERINKA, H. SANO and H. HOSODA, Dent. Mater. 8 (1992) 229.Google Scholar
  5. 5.
    T. YOSHIKAWA, H. SANO, M. F. BURROW, J. TAGAMI and D. H. PASHLEY, J. Dent. Res. 78 (1999) 898.Google Scholar
  6. 6.
    L. G. WATANABE, G. W. MARSHALL JR and S. J. MARSHALL, Dent. Mater. 12 (1996) 109.Google Scholar
  7. 7.
    N. KONISHI, L. G. WATANABE, J. F. HILTON, G. W. MARSHALL, S. J. MARSHALL and M. STANINEC, Dent. Mater. 18 (2002) 516.Google Scholar
  8. 8.
    D. PASHLEY, A. OKABE and P. PARHAM, Endodont. Dent. Traumatol. 1 (1985) 176.Google Scholar
  9. 9.
    J. H. KINNEY, M. BALOOCH, S. J. MARSHALL, G. W. MARSHALL and T. P. WOIHS, Arch. Oral Biol. 4 (1996) 9.Google Scholar
  10. 10.
    D. A. SUMIKAWA, G. W. MARSHALL, L. GEE and S. J. MARSHALL, Pediatr. Dent. 21 (1999) 439.Google Scholar
  11. 11.
    A. HIRAYAMA, Shikwa Gakuho 90 (1990) 1019.Google Scholar
  12. 12.
    D. H. RETIEF, Oper. Dent. 12 (1987) 140.Google Scholar
  13. 13.
    R. L. BOWEN and M. M. RODRIGUEZ, J. Amer. Dent. Associ. 64 (1962) 378.Google Scholar
  14. 14.
    M. L. LEHMAN, J. Dent. Res. 46 (1967) 197.Google Scholar
  15. 15.
    T. FUSAYAMA and T. MAEDA, J. Dent. Res. 48 (1969) 452.Google Scholar
  16. 16.
    D. PASHLEY, A. OKABE and P. PARHAM, Endodont. Dent. Traumatol. 1 (1985) 176.Google Scholar
  17. 17.
    R. G. CRAIG and F. A. PEYTON, J. Dent. Res. 37 (1985) 710.Google Scholar
  18. 18.
    H. SANO, B. CIUCCHI, W. G. MATTHEWS and D. H. PASHLEY, J. Dent. Res. 73 (1994) 1205.Google Scholar
  19. 19.
    J. H. KINNEY, M. BALOOCH, G. W. MARSHALL and S. J. MARSHALL, Arch.Oral Biol. 44 (1999) 813.Google Scholar
  20. 20.
    N. MEREDITH, M. SHERRIFF and D. J. STECHELL, Arch. Oral Biol. 41 (1996) 539.Google Scholar
  21. 21.
    H. H. K. XU, D. T. SMITH, S. JAHANMIR, E. ROMBERG and J. R. KELLY, J. Dent. Res. 77 (1998) 472.Google Scholar
  22. 22.
    M. F. DOERNER and W. D. NIX, J. Mater. Res. 1 (1986) 601.Google Scholar
  23. 23.
    G. WILEEMS, J. P. CELIS, P. LEMBRECHTS, M. BRAEM and G. VANHERLE, J. Biomed. Mater. Res. 27 (1993) 747.Google Scholar
  24. 24.
    B. VAN MEERBEEK, G. WILLEMS, J. P. CELIS, J. R. ROOS, M. BRAEM, P. LAMBRECHTS and G. VANHERLE, J. Dent. Res. 72 (1993) 1434.Google Scholar
  25. 25.
    N. AKIMOTO, K. OHMORI, G. YOKOYAMA, Y. MOMOI and A. KOHNO, Jap. J. Conserv. Dent. 48 (1999) 96.Google Scholar
  26. 26.
    I. URABE, M. NAKAJIMA, H. SANO and J. TAGAMI, Am. J. Dent. 13 (2000) 129.Google Scholar
  27. 27.
    E. MAHONEY, A. HOLT, M. SWAIN and N. KILPATRICK, J. Dent. 28 (2000) 589.Google Scholar
  28. 28.
    J. H. KINNEY, S. J. MARSHALL and G. W. MARSHALL, Clit. Rev. Oral. Biol.Med. 14 (2003) 13.Google Scholar
  29. 29.
    I. NIHEI, J. Osaka Univ. Dent. 28 (1959) 1.Google Scholar
  30. 30.
    M. KUME, Dainippon Shikaigakkai Zasshi 3 (1960) 72.Google Scholar
  31. 31.
    K. NOSE, J Kyoto Prefecture Medical Univ. 69 (1961) 1925.Google Scholar
  32. 32.
    D. V. JOHNSEN, in “Oral Development and History” (Thiema Medical Publishers, New York, 1994) p. 287.Google Scholar
  33. 33.
    Y. HOSOYA, S. J. MARSHALL, L. G. WATANABE and G. W. MARSHALL, Oper.Dent. 25 (2000) 81.Google Scholar
  34. 34.
    Y. HOSOYA, T. ONO and G. W. MARSHALL, I. NIHEI, M. KUME, Pediatr. Dent. J. 12 (2002) 91.Google Scholar
  35. 35.
    Y. HOSOYA and G. W. MARSHALL JR, Oper. Dent. 29 (2004) 142.Google Scholar
  36. 36.
    W. C. OLIVER and G. W. PHARR, J. Mater. Res. 7 (1992) 1564.Google Scholar
  37. 37.
    N. NAKABAYASHI, K. KOJIMA and E. MASUHARA, J. Biomed. Mater. Res. 16 (1982) 265.Google Scholar
  38. 38.
    J. E. NOR, R. J. FEIGEL, J. B. DENNISON and S. EDWARD, Pediatr. Dent. 19 (1997) 246.Google Scholar
  39. 39.
    A. OLMEZ, N. OZTAS, F. BASAK and S. ERDAL, J. Clinical Pediatr. Dent. 22 (1998) 293.Google Scholar
  40. 40.
    Y. HOSOYA, Y. KAWASHITA, G. W. JR. MARSHALL and G. GOTO, J. Dent. 29 (2001) 163.Google Scholar

Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  1. 1.Division of Pediatric Dentistry, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental SciencesNagasaki University Graduate School of Biomedical SciencesNagasakiJapan
  2. 2.Division of Biomaterials and Bioengineering, Department of Preventive and Restorative Dental ScienceUniversity of California San FranciscoSan FranciscoUSA

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