The Evaluation of Marginal Gap With and Without Optical Aids:: Clinicians Versus Technicians

• Autores: Gaetano Calesini, Costanza Micarelli, Andrea Fabianelli, Federica Papacchin
• Localización: The International Journal of Prosthodontics, ISSN-e 1942-4426, Vol. 27, Nº. 2, 2014, págs. 161-164
• Idioma: inglés
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• Resumen

  • Purpose: This study investigated the reliability of visual assessment of marginal gaps in relation to the use of magnification and the operator’s profession. Materials and Methods: A titanium bar was notched, simulating 40 marginal gaps, and 35 operators performed a quantitative evaluation of the incisions. Results: Visual examination was neither sensitive nor specific, as an extreme variability of data was recorded. The precision of readers improved with magnification aids only for clinicians; technicians were significantly more accurate in evaluating the incision’s width. Conclusion: The visual examinations were inadequate to decide the clinical acceptability of a restoration with regard to its marginal fit.