Denture Cleansers

Introduction
The success of rehabilitation of edentulous patients with complete denture depends on upon esthetics, comfort, and proper function. During the function, the masticatory forces act upon the denture-supporting area through the hard denture base. Unfortunately, the health of these supporting tissues may be adversely affected by high-stress concentration. Chronic denture soreness is the most common complication of denture wearing. These post-insertion problems occur more in patients suffering from diabetes, debilitating diseases, and geriatric population. In order to overcome these adverse effects use of soft lining material is advocated with the intention to distribute functional and parafunctional stresses more evenly and to provide

Materials and methods
A total of 80 test specimens were prepared for the purpose of testing tensile bond strength. Each specimen had dimensions of 20 x 8mms and consisted of two Polymethyl methacrylate blocks of dimensions 8 x 8 mm with a soft liner of uniform thickness of 4mm interposed between them.
Preparation of test specimens
It was carried out in two

These solid brass cylinders were flasked conventionally using Dental Flask and clamp (Jabbar & Co.) with dental plaster type II and dental stone type IV mixed in the ratio 1:1. Once set, the flasks were opened and cylinders retrieved.
Conventional heat cure acrylic denture base resin (Dental Products of India, Dentsply) was mixed [ratio 3(polymer): 1(monomer)] and packed according to manufacturers’ instructions. It was allowed to bench cure for about 30 minutes and heat cured using short curing cycle 740 C for 90 minutes and an additional 30 minutes at 1000 C. On completion and cooling, the heat cured acrylic cylinders were retrieved. Finishing was done using finishing acrylic burs and sand papers. Each finished cylinders (20 mm x 8 mm) were placed back to their respective moulds. 4mm in the centre of the cylinders were marked using a marker and were sectioned using the disc. Separating medium was applied over the mould containing these specimens

B) Addition of soft