Comparitive Evaluation of the Dimensional Accuracy of Multiple Casts Poured From Two Different Elastomeric Impression Materials
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 9
Abstract
Aim: The aim of the present study is to compare accuracy and dimensional stability of two different elastomeric impression materials, with respect to obtaining multiple casts at various times of pours. Materials and methods: A master die was prepared with specific dimension and impression was made using two different elastomeric impression materials and the impression was poured at various time periods. Casts thus obtained were evaluated under a CMM (Coordinate Measuring Machine) to evaluate various dimensional changes. Results: Addition silicones provided dies which were shorter in height and bigger in diameter in 2nd and 3rd pour. Condensation silicones showed insignificant changes from the master die at the Immediate pour but deteriorated rapidly after that in subsequent pours. Conclusion: None of the two impression material showed a consistent behavior up to the third pour They occasionally showed deviation from the pattern, but all these values were almost statistically insignificant.
Authors and Affiliations
Dr Sony Sebastian, DrKurien Varghese, DrBilaalSidhique Abubacker, DrJiji M Edakalathur
Keywords
Related Articles
- EP ID EP395393
- DOI 10.9790/0853-1709070509.
- Views 77
- Downloads 0
A Survey of Paediatric Otolaryngological Surgeries in a Nigerian University Teaching Hospital
Background: In our environment the paediatric population constitutes a large number of our otolaryngologic surgical patients. This study determined the pattern of paediatric otolaryngological surgeries in the University...
Incidence of Acute Kidney Injury and Determinant Factors in Children Admitted to a Tertiary Hospital
acute kidney injury is common in hospitalized children and this study characterizes acute kidney injury in hospitalized children in a tertiary care center. Identify the incidence and risk factors of acute kidney injury i...
Tobacco Using Pattern and Health Status of Street Vendors in Dhaka City, Bangladesh
Background: Street vending is a dominant occupation in urban areas of developing countries as well as very popular and customized in urban areas of Bangladesh. It offers goods or services for sale to the public without h...
Study of Microbial Contaminationin Dental Unit Water Line: A Clinical Implication
Effective infection control is very crucial. The objective of this research is to determine the level of bacterial countin water from dental chair unit output at the Dental Clinic Faculty of Dentistry, UniversitiSains Is...
Both Prospective and Retrospective Role of USG Guided Fnac In Hepatobilliary Pancreatic Lesion In Correlation With Radiological Diagnosis
Background: First reports of fine-needle aspiration cytology (FNAC) as a technique for obtaining diagnostic material date back to the 19th century when, at St Bartholomew’s Hospital, London, aspiration was undertaken on...