Operative Dentistry and Biomaterials

Armstrong, Steven R.

Abstract

Current activities primarily involve fulfilling the requirements for the Operative Dentistry component of the Dentist Scientist Program. These include course work in Statistical Methods in the Biomedical Sciences, Research Design in Dentistry, Biomaterials Research Methodology, Seminars in Dental Research, Operative Dentistry Seminar, clinical work in Operative Dentistry Advanced Clinic and teaching assistance in Freshman Operative Preclinical Laboratory. In preparation for the basic science component of the Dentist Scientist Program, course include; Biomedical Engineering Laboratories, Intermediate Biomaterials, and Scanning Microscopy and X-Ray Microanalysis. Research interest is polymer adhesion, specifically the polymer-dentin interface.

Funding Agency

• Agency: National Institute of Health (NIH)
• Institute: National Institute of Dental & Craniofacial Research (NIDCR)
• Type: Unknown (K16)
• Project #: 5K16DE000175-10
• Application #: 3753476
• Support Year: 10
• Fiscal Year: 1994

Institution

• Name: University of Iowa
• DUNS #: 041294109
• City: Iowa City
• State: IA
• Country: United States
• Zip Code: 52242

Publications

Perinpanayagam, H; Schneider, G; Holtman, K et al. (2004) Altered Cbfa1 expression and biomineralization in an osteosarcoma cell line. J Orthop Res 22:404-10

Armstrong, Steven R; Vargas, M A; Chung, I et al. (2004) Resin-dentin interfacial ultrastructure and microtensile dentin bond strength after five-year water storage. Oper Dent 29:705-12

Timmons, Sherry R; Nwankwo, Joseph O; Domann, Frederick E (2002) Acetaldehyde activates Jun/AP-1 expression and DNA binding activity in human oral keratinocytes. Oral Oncol 38:281-90

Armstrong, S R; Keller, J C; Boyer, D B (2001) The influence of water storage and C-factor on the dentin-resin composite microtensile bond strength and debond pathway utilizing a filled and unfilled adhesive resin. Dent Mater 17:268-76

Armstrong, S R; Keller, J C; Boyer, D B (2001) Mode of failure in the dentin-adhesive resin-resin composite bonded joint as determined by strength-based (muTBS) and fracture-based (CNSB) mechanical testing. Dent Mater 17:201-10

Armstrong, S R; Boyer, D B; Keller, J C et al. (1998) Effect of hybrid layer on fracture toughness of adhesively bonded dentin-resin composite joint. Dent Mater 14:91-8

Armstrong, S R; Boyer, D B; Keller, J C (1998) Microtensile bond strength testing and failure analysis of two dentin adhesives. Dent Mater 14:44-50

Kurago, Z B; Lutz, C T; Smith, K D et al. (1998) NK cell natural cytotoxicity and IFN-gamma production are not always coordinately regulated: engagement of DX9 KIR+ NK cells by HLA-B7 variants and target cells. J Immunol 160:1573-80

Baumgardner, K R; Walton, R E; Osborne, J W et al. (1996) Induced hypoxia in rat pulp and periapex demonstrated by 3H-misonidazole retention. J Dent Res 75:1753-60

Kurago, Z B; Smith, K D; Lutz, C T (1995) NK cell recognition of MHC class I. NK cells are sensitive to peptide-binding groove and surface alpha-helical mutations that affect T cells. J Immunol 154:2631-41