title: Influence of pH environment on polymer based dental material properties.
abstract: OBJECTIVE
  This study aims to analyze the influence of different pH environments causing degradation to the properties of polymer based materials.
  
  
  METHODS
  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.
  
  
  METHODS
  Evaluation of published laboratory studies regarding the effects of different pH mediums on resin-based material properties.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Operative Dentistry, Endodontics and Dental Materials, Bauru Dental School, University of São Paulo, Bauru, São Paulo 17912-170, Brazil. prakki@yahoo.com
authors.forename: Anuradha
authors.initials: A
authors.lastname: Prakki
authors.forename: Renato
authors.initials: R
authors.lastname: Cilli
authors.forename: Rafael Francisco Lia
authors.initials: RF
authors.lastname: Mondelli
authors.forename: Sid
authors.initials: S
authors.lastname: Kalachandra
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Pereira
mesh_terms: D000143:Acids / Q000737:chemistry; D000468:Alkalies / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D003764:Dental Materials / Q000737:chemistry*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D008422:Materials Testing; D011108:Polymers / Q000737:chemistry*; D012117:Resins, Synthetic / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: D000143:Acids; D000468:Alkalies; D003188:Composite Resins; D003764:Dental Materials; D011108:Polymers; D012117:Resins, Synthetic