http://localhost:80/xmlui/handle/123456789/17192 2026-04-22T05:17:09Z 2026-04-22T05:17:09Z SABA WAQAR QURESHI SHAHREEN ZAHID SAMIE QADIR MUHAMMAD KALEEM http://localhost:80/xmlui/handle/123456789/18515 2023-03-13T07:12:19Z 2017-07-03T00:00:00Z

Title: A COMPARISON OF ALGINATE IMPRESSION PRODUCTS IN TERMS OF STIFFNESS BASED ON YOUNG’S MODULUS Authors: SABA WAQAR QURESHI; SHAHREEN ZAHID; SAMIE QADIR; MUHAMMAD KALEEM Abstract: The purpose of this study was to evaluate the stiffness of five commercially available different algi-nate impression materials namely Cavex CA37®, Cavex Color Change®, Tulip®, Cavex Cream Alginate®and TOL® so that one can deduce which material is the most suitable for taking accurate impressions of deep sulci and undercuts. The study was divided in to five groups (one for each product) with thirty samples each, which were tested for hardness using shore A durometer. This was done at three time points, i.e. ends of working and setting times and the point at which a constant value of hardness was achieved, so there were three subgroups for each material, containing ten samples each. The modulus of elasticity at these time points was calculated using the Gent relationship for each material. Data were analyzed using SPSS version 22, by the repeat measure ANOVA test. p value less than 0.05 was considered significant. Curves were plotted using Microsoft Excel for each material for comparison The results showed that the elastic moduli increased at all times in the following order; Cavex Cream Alginate®> Tulip®> Cavex Color Change®> TOL ®> Cavex CA37® and the rate of increase was greater at the end of working time, and later decreased. It was deduced that the most appropriate alginate product for deep sulci and undercuts was Cavex CA37®. However, studies including detail reproduc-tion studies, dimensional stability studies and disinfection protocols etc are warranted to accurately specify the suitability of each product for clinical applications.

2017-07-03T00:00:00Z SHAHREEN ZAHID SAMIE QADIR NIDA ZEHRA BANO SABA WAQAR QURESHI MUHAMMAD KALEEM http://localhost:80/xmlui/handle/123456789/18513 2023-03-13T07:10:58Z 2017-07-02T00:00:00Z

Title: EVALUATION OF THE DIMENSIONAL STABILITY OF ALGINATE IMPRESSION MATERIALS IMMERSED IN VARIOUSDISINFECTANT SOLUTIONS Authors: SHAHREEN ZAHID; SAMIE QADIR; NIDA ZEHRA BANO; SABA WAQAR QURESHI; MUHAMMAD KALEEM Abstract: This study was aimed to investigate the effect of two different disinfectant agents on the dimen-sional stability of commercially available modern alginate impression materials in terms of syneresis and imbibition. Two disinfection agents; Chlorox® (5.25%sodium hypochlorite) and Practice safe®, (alcohol based) were used to assess the dimensional stability of five commercially available alginate impression materials including Cavex CA37®, Cavex Color Change®, Tulip®, Cavex Cream Alginate®, and TOL®. Artificial Saliva treated samples were used as control group. To obtain a measure of im-bibition, weights of sample discs of the impression materials were measured before and immediately after disinfection. For syneresis, disinfected sample discs were weighed at thirty minutes and then after a twenty four hour time interval. Repeat Measure Analysis of variance was employed to identify statistically significant differences within groups and across groups. The results have shown that all impression materials showed minimum change in weight while treated with Chlorox®, whereas Practice safe® caused large changes in weight. Cavex Cream® Alginate showed minimum change immediately after disinfection, but after thirty minutes, Cavex CA 37®showed the overall least change in weight. It can be concluded that Chlorox® should be preferred over Practice safe® as a disinfectant medium for newer alginates. Cavex Cream® Alginate disinfected with Chlorox® is the most stable immediately after disinfection, but Cavex CA 37® disinfected with Chlorox® is more ideal for delayed pouring. However, further research related to the comparison of detail reproducibility is recommended.

2017-07-02T00:00:00Z NAGEEN AKHTAR SUNDAS TANVEER MUHAMMAD AAMIR GHAFOOR CHAUDHARY SALMAN AHMAD http://localhost:80/xmlui/handle/123456789/18511 2023-03-13T07:10:16Z 2017-07-01T00:00:00Z

Title: THE RELIABILITY OF FOVEAE PALATINAE IN DETERMINING THE LOCATION OF VIBRATING LINE IN EDENTULOUS PATIENTS Authors: NAGEEN AKHTAR; SUNDAS TANVEER; MUHAMMAD AAMIR GHAFOOR CHAUDHARY; SALMAN AHMAD Abstract: The objective of this cross-sectional study was to determine the reliability of foveae palatinae for locating the position of the vibrating line in edentulous patients. The study was conducted in a ter-tiary care dental hospital in Islamabad, Pakistan on a sample of 150 completely edentulous patients. Clinical examination of the soft palate area was conducted to assess for the location of the vibrating line, whether it was at, anterior to or posterior to the foveae. Interestingly, foveae were not present in 27.2% of the sample. When present, 32.5% patients had foveae present at the level of vibrating line, 31.1% had vibrating line posterior to foveae palatinae ,while only 8.6% presented with vibrating line anterior to fovea palatinae. Within the limitations of the present study, it was concluded that foveae palatinae are not a reliable anatomical landmark for determining the position of the vibrating line.

2017-07-01T00:00:00Z HINA MEMON MUHAMMAD RIZWAN MEMON AAMIR MAHMOOOD BUTTT ERUM NAZ http://localhost:80/xmlui/handle/123456789/18510 2023-03-13T07:09:51Z 2017-06-30T00:00:00Z

Title: PROFESSIONAL RISKS BY AUTOPOLYMERISED ACRYLICRESINS AMONGST DENTISTS Authors: HINA MEMON; MUHAMMAD RIZWAN MEMON; AAMIR MAHMOOOD BUTTT; ERUM NAZ Abstract: This descriptive study was carried out at Liaquat University Institute from July 2016 to August 2016 with dental students, General Dental Practitioners and specialist Prosthodontists. The participants were asked about their qualification, durations of polymethylmethacrylate use, organs affected by allergy, whether any medical treatment acquired for their problem, time period for development of allergy and the protocols used for prevention of further problems. It was concluded that majority of the participants had allergic reactions to skin but most of them did not took any medical help or followed any protocols to prevent further reactions.

2017-06-30T00:00:00Z