Abstract
Radiographic measurement of marginal bone height is a standardized criterion for assessment of implant success. 1. Albrektsson T. On long-term maintenance of the osseointegrated response. Aust Prosthodont J. 1993; 7: 15-24 PubMed Google Scholar The distance measured from the first implant thread can be used as a reference point on periapical radiographs that have 0.1 mm bone height resolution. 2. Adell R. Lekholm U. Rockler B. Brånemark P.I. A 15-year study of osseointegrated implants in the treatment of the edentulous jaw. Int J Oral Surg. 1981; 10: 387-416 Abstract Full Text PDF PubMed Scopus (3637) Google Scholar However, the technique lacks precision and reproducibility, with variations ranging as high as 20 degrees' difference depending on the radiation source position. 3. Gröndahl K, Ekestubbe A, Gröndahl HG. Radiograph in oral endosseous prosthetics. Gothenburg: Nobel Biocare Ab, 1996. In: Galasso L. Proposed method for the standardized measurement of marginal bone height on periapical radiographs with the Brånemark system. Clin Implant Dent Relat Res 2000;2:147-51. Google Scholar To overcome this problem, a device has been developed for use with straight abutments of the Brånemark implant system (Nobel Biocare AB, Gotenburg, Sweden).4 This article describes the fabrication of a universal device suitable for all internally-threaded implants.
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