Joana Carvalho's research while affiliated with Hospital Egas Moniz and other places

Publications (13)

Article
Full-text available
Polymethylmethacrylate is the material of choice for prosthetic bases. Depending on the type of polymerization, acrylic resins may present some mechanical weaknesses that may lead to the failure of a prosthesis. The microhardness and flexural strength of a dental material determine its applicability. The objective of the present investigation was t...
Article
Introduction: Denture base acrylic resins release residual monomers as a result of an incomplete polymerization [1 Gautam, R, Singh RD, Sharma VP, et al. Biocompatibility of polymethylmethacrylate resins used in dentistry. Journal of Biomedical Materials Research - Part B Applied Biomaterials. 2012;100 B(5):1444–1450.[Crossref] , [Google Scholar]]....
Article
Introduction: Polymethylmethacrylate resins are essential materials in the Oral Rehabilitation field. However, their use is being called into question once they can cause adverse reactions in the adjacent tissues [1 Goiato MC, Freitas E, Dos Santos D, et al. Acrylic resin cytotoxicity for denture base – Literature review. Adv Clin Exp Med. 2015;24:...
Article
Full-text available
Background: Conventional acrylic resin is prone to microbial colonization and may cause inflammatory and allergic response. Aims: This study aims to research the initial microbial adhesion in situ and tissue response to an acrylic resin used in prosthodontics. Materials and Methods: Disks of a commercial acrylic resin were prepared and included on...
Poster
Full-text available
Objectives: To research differences in initial microbial adhesion by simulating in situ biofilm formation on an acrylic resin used in removable prosthodontics by smokers and non-smokers. Methods: Disks of polymethilmethacrilate acrylic resin of equal calibrated dimensions were prepared and polished according to the norms of its clinical use and wer...
Article
Full-text available
Denture stomatitis is a disease prevalent amongst denture wearers and the elderly. This review aims to provide dentists with the latest scientific information about this disease. A gold standard treatment for this condition is still lacking, and further research is needed.
Poster
Full-text available
Denture stomatitis nowadays is still a prevalent disease amongst patients wearing removable dentures, irrespective of age. In order to set out clinical approaches to manage this disease there is a need to know exactly which factors are important in the settlement of this condition. Pubmed/MEDLINE, Google Scholar and Cochrane Library searches were c...

Citations

... Vickers microhardness measurement of acrylic samples using a microhardness tester (made by SCTMC Company, Model HV-1000Z) in the Central Laboratory of Tabriz University was performed under a force of 30 grams at 30 seconds according to ISO 20759-1: 2013 [22]. Each sample was subjected to a hardness test 3 times (once in the center and twice in the sides), and we reported an average of 3 tests. ...
... Both factors have been observed to play an important role in microbial diversity over time. (25,26) Thus, the proper management of removable prostheses to reduce bacterial colonization should be a major focus of future research. ...