COMPARATIVE STUDY BETWEEN TWO DIFFERENT TYPES OF SOFT LINERS USED FOR PATIENTS WITH MAXILLARY OBTURATORS

Document Type : Original Article

Author

Lecturer, Faculty of Oral and Dental Medicine,Cairo University

Abstract

This study compared two types of denture resilient liners, the first was acrylic resin based and the scond was silicone based liner when used in patients with maxillary obturators after partial maxillectomy has been done regarding microbial adhesion. Samples were collected from the fitting surface, laboratory procedures were done. Evaluation of microbial growth by scanning the vegitations surface area in relation to the total surface area of the petri dish using graduated transparent paper was done to study the microbial adhesion in both after two weeks and six weeks. The results showed that the effect of the material was of statistical significance while time was not. The silicone-based soft liner has more liability for microbial adhesion than acrylic resin-based soft liner. This could be attributed to the rough surface of the first material especially with time due to difference in surface topography which enhance the attachment of micro-organisms. 

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