*Assistant Professor, Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Uttar Pradesh, Lucknow, India
**Professor, Department of Prosthodontics, College of Dentistry, Jazan University, (KSA)
***Associate Professor, Department of Prosthodontics, Faculty of Dental Sciences, Jamia Millia Islamia, New Delhi
****Senior Resident, Department of OMR, Faculty of Dental Sciences, King George's Medical University, Uttar Pradesh, Lucknow, India
Online published on 25 February, 2016.
Whether the primary stress bearing areas are subjected to more pressure as compared to secondary or non stress bearing areas. The provision of spacer & escape holes helps in reduction & selective application of pressure on stress bearing and non stress bearing areas.
an indigenously made instrument was used to eveluate pressure on the different designated areas, different impression trays were used to record impression and the difference in pressure exerted was recorded.
The Data was entered in MS Excel and analysed using Minitab 13 for Windows. Paired t-test was used for comparison of means. P value of less than 0.05 was considered significant.
It was not possible to subject the stress bearing areas to higher pressure as compared to other area The maximum increase in pressure was observed in midpalatal region, whether we use tray with spacer or without spacer.
Differential pressure analyzer, Manometers, Modified special trays, Zoe paste, Selective Pressure, spacer, escape holes
