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The Periodontal-Restorative Interface

Enhancement Through Magnification

One critical factor associated with aesthetics, periodontal health, and the longevity of restorations is the precision of the margins at the periodontal-restorative interface. Improper margins can cause overhangs and over contouring that may ultimately result in caries, periodontal inflammation and breakdown, and compromised aesthetics. In order to prevent pathology at the restorative tooth interface, each phase of the aesthetic treatment must be performed with precision and care. This video presents the utilization of an operating microscope to improve the marginal adaptation of all-porcelain restorations.

*Private practice, Newport Beach, California; Clinical Professor, Department of Restorative Dentistry, University of Southern California, Los Angeles, California; Clinical Associate Professor, Department of Orthopedics, University of California, Irvine, California.

 

Learning Objectives:

This video discusses the use of an operating microscope to improve the marginal adaptation of all-ceramic restorations. Upon viewing the video, the viewer should have:

  • Increased familiarity with the clinical advantages provided by magnification.
  • Improved understanding of the manner in which preparation, provisionalization, and additional restorative phases should be completed with an operating microscope.

 

Related Reading:

  1. Muller HP. The effect of artificial crown margins at the gingival margin on the periodontal conditions in a group of periodontally supervised patients treated with fixed bridges. J Clin Periodontol 1986;13:97-102.
  2. Valderhaug J, Birkeland JM. Periodontal conditions in patients 5 years following insertion of fixed prostheses. J Oral Rehab 1976;3:237-243.
  3. Lang N, Kiel R, Anderhalden K. Clinical and microbiological effects of subgingival restorations with overhanging or clinically perfect margins. J Clin Periodontol 1983;10:563-578.
  4. Felton DA, Kanoy BE, Bayne SC, Whirthman GP. Effect of in vivo crown margin discrepancies on periodontal health. J Prosthet Dent 1991;65(3):357-364.
  5. Richter W, Veno H. Relationship of crown margins placement to gingival inflammation. J Prosthet Dent 1973;30:156-161.
  6. Miya D. Gold inlays bonded with a resin cement: A clinical report. J Prosthet Dent 1997;78:233-235.
  7. Shanelec DA. Optical principles of loupes. J Calif Dent Assoc 1992;20(11):25-32.
  8. Mora AF. Restorative microdentistry: A new standard for the twenty-first century. Prosth Dent Review; Winter 1998.
  9. Waerhaug J. Temporary restorations: Advantages and disadvantages. Reaction of tissues to temporary restorations. Dent Clinic 1980;24(2):305-316.
  10. Wagenberg B, Eskow R, Langer B. Exposing adequate tooth structure for restorative dentistry. Int J Periodont Rest Dent 1989;9(5):323-331.
  11. Christensen G. Marginal fit of gold inlay castings. J Prosthet Dent 1966;16(2):297-305.
  12. Michaelides PL. Use of the operating microscope in dentistry. J Calif Dent Assoc 1996;24(6):45-50.
  13. Leknius C, Geissberger M. The effect of magnification on the performance of fixed prosthodontic procedures. J Calif Dent Assoc 1995;23(12):66-70.
  14. Chou TM. Endodontic perforation repair using the surgical operating microscope. Dent Today; May 1994.
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