Influence of pH environment on polymer based dental material properties

• Published in: Journal of dentistry Vol. 33; no. 2; pp. 91 - 98
• Main Authors: Prakki, Anuradha, Cilli, Renato, Mondelli, Rafael Francisco Lia, Kalachandra, Sid, Pereira, José Carlos
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01-02-2005; The Lancet Publishing Group, a division of Elsevier Science Ltd; Elsevier Limited
• Subjects: Acids - chemistry; Alkalies - chemistry; Alkaline medium; Chemical properties; Composite resins; Composite Resins - chemistry; Dental materials; Dental Materials - chemistry; Dental matrices; Dentistry; erosion; Humans; Hydrogen-Ion Concentration; Hydrolysis; Hydrolytic degradation; Internal corrosion; Materials Testing; Mechanical properties; Polymers; Polymers - chemistry; Resins, Synthetic - chemistry; Solubility; Stress, Mechanical; Surface Properties; United Kingdom; Internal corrosion; Dental materials; Composite resins; Solubility; pH; erosion; Mechanical properties; Alkaline medium; Hydrolytic degradation; Polymers
• ISSN: 0300-5712; 1879-176X
• DOI: 10.1016/j.jdent.2004.08.004

This study aims to analyze the influence of different pH environments causing degradation to the properties of polymer based materials.
Studies were identified by searching published material in medical and dental literature using general and specialist databases, hand searching key dental journals and searching abstracts from conference proceedings.
Evaluation of published laboratory studies regarding the effects of different pH mediums on resin-based material properties.
For laboratory studies, slightly low pH mediums are the ones of choice to best mimic some
in vivo conditions, but the effect seems to be slow acting. If the purpose is to accelerate dental composite hydrolysis and produce quick micro-structural damage to evaluate in vitro mechanical performances, suitable alternatives would be the use of high alkaline or very low acidic mediums.