Precise  marginal  fit  is  an  essential  and  critical  factor  for  a  successful  dental  cast restoration as  intraoral  degradation  of  cement  can  result in loss of  marginal  seal  and  promote  retention  of  plaque.  Marginal  fit  of  the  casting  is  one  factor  that  can lead  directly  or  indirectly  to development of   secondary  dental  caries,  adverse  pulpal  reaction,  and  periodontal  disease. Marginal  seal  essentially  depends  on  the  surface  characteristics  of  the  margins,  adaptation  of  casting  and  the  luting  cement  used.  Inadequate  fit of a coping due  to  poor  marginal  seal can lead to  a  thin line  of  the  cementing  medium  exposed  to  the  action  of  saliva,  foreign  bodies and  oral  fluids,  encouraging problems under the restoration and finally tooth loss. The presented literature review is an endeavor to emphasize the chronological approaches, different pioneer researches, different controversies, problems and modern drifts for casting of metal employing various techniques. A detailed literature exploration was conducted using MEDLINE/PubMed databases and other scholarly research bibliographic databases. Studies describing research studies and in-vitro studies were retrieved and evaluated from 1948 to 2018.
Key words: Porcelain, Ceramic, Marginal fit.

Corresponding Author: Dr. Davinderjit Kaur Shergill, Senior Lecturer, Department of Prosthodontics, Maharaja Ganga Singh Dental College, Sriganganagar (Rajasthan), India

This article may be cited as: Shergill DK. A Systematic Literature Review on Marginal  fit  of  Metal  Copings  of  Different  Porcelain  Fused  to  Metal  Alloys. Int J Res Health Allied Sci 2017;3(6):109-112.