title: A comparative evaluation of the effect of dentin desensitizers on the retention of complete cast metal crowns.
abstract: BACKGROUND
  Desensitizers are used to reduce dentin hypersensitivity. They affect the surface texture of prepared dentin and may alter the retention of fixed restorations.
  
  
  OBJECTIVE
  The aim was to evaluate the effect of dentin desensitizers on the retention of complete cast metal crowns luted with glass ionomer cement.
  
  
  METHODS
  Fifty freshly extracted human premolars were subjected to standardized tooth preparation (20° total convergence, 4 mm axial height) with a computer numerically controlled machine. Individual cast metal crowns were fabricated from a base metal alloy. Dentin desensitizers included none (control), a glutaraldehyde (GLU) based primer (Gluma desensitizer), casein phosphopeptide (CPP)-amorphous calcium phosphate (ACP) (GC Mousse), erbium, chromium: YSGG laser (Waterlase MD Turbo, Biolase) and Pro-Argin (Colgate Sensitive Pro-Relief desensitizing polishing paste). After desensitization, crowns were luted with glass ionomer cement and kept for 48 h at 37°C in 100% relative humidity. The samples were tested using a universal testing machine by applying a load at a crosshead speed of 0.5 mm/min.
  
  
  METHODS
  Statistical analysis included One-way ANOVA, followed by the Scheffe post-hoc test with P < 0.05.
  
  
  RESULTS
  All dentin desensitizers showed significantly different values: Pro-Argin (4.10 Megapascals [Mpa]) < CPP-ACP (4.01 mpa) < GLU based primer (3.87 Mpa) < Virgin dentin (3.65 Mpa) < LASER (3.37 Mpa).
  
  
  CONCLUSIONS
  On comparing the effect of prepared virgin dentin, GLU based primer, CPP-ACP, LASER and Pro-Argin on the retention of complete cast metal crowns luted with glass ionomer cement on prepared teeth, it can be concluded that Pro-Argin and CPP-ACP showed the best retention in this in vitro study.
authors.affiliation: Bethany Hospital, Thane, STVJS Charitable Trust, Thane, Shri Vagad Welfare Hospital, Kutch, India.
authors.forename: Saili M
authors.initials: SM
authors.lastname: Chandavarkar
authors.affiliation: Department of Prosthodontics, MGM Dental College and Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Sabita M
authors.initials: SM
authors.lastname: Ram
keywords: Dentin desensitizer; glass ionomer cement; retention
references.citation: J Prosthet Dent. 2000 Apr;83(4):459-65
references.pmid: 10756297
references.citation: J Clin Laser Med Surg. 1999;17(4):155-9
references.pmid: 11199838
references.citation: J Prosthet Dent. 1992 Jun;67(6):782-5
references.pmid: 1328622
references.citation: Dent Clin North Am. 2004 Oct;48(4):1017-59, viii
references.pmid: 15464563
references.citation: J Am Dent Assoc. 2006 Jul;137(7):990-8; quiz 1028-9
references.pmid: 16803826
references.citation: Adv Med Sci. 2006;51 Suppl 1:40-2
references.pmid: 17458057
references.citation: Dent Mater. 2007 Dec;23(12):1549-52
references.pmid: 17459466
references.citation: Int J Prosthodont. 2007 May-Jun;20(3):289-92
references.pmid: 17580462
references.citation: J Dent. 2007 Aug;35(8):695-8
references.pmid: 17614188
references.citation: Int J Prosthodont. 1991 May-Jun;4(3):219-25
references.pmid: 1810312
references.citation: Int J Prosthodont. 1991 May-Jun;4(3):292-8
references.pmid: 1810321
references.citation: Am J Dent. 2009 Mar;22 Spec No A:3A-7A
references.pmid: 19472555
references.citation: Am J Dent. 2009 Mar;22 Spec No A:8A-15A
references.pmid: 19472556
references.citation: Dent Mater. 2010 Mar;26(3):193-206
references.pmid: 19931901
references.citation: J Clin Periodontol. 2010 Apr;37(4):340-5
references.pmid: 20447257
references.citation: J Dent. 2011 Mar;39(3):249-54
references.pmid: 21238531
references.citation: Odontostomatol Proodos. 1990 Dec;44(6):427-36
references.pmid: 2130354
references.citation: J Endod. 2011 Mar;37(3):297-303
references.pmid: 21329811
references.citation: Dent Clin North Am. 2011 Jul;55(3):599-608, x
references.pmid: 21726693
references.citation: Oper Dent. 2011 Mar-Apr;36(2):153-61
references.pmid: 21777097
references.citation: ISRN Dent. 2011;2011:341546
references.pmid: 21991468
references.citation: Med J Armed Forces India. 2009 Apr;65(2):146-9
references.pmid: 27408222
references.citation: J Prosthet Dent. 1986 Aug;56(2):153-6
references.pmid: 3463742
references.citation: J Prosthet Dent. 1982 Jan;47(1):63-8
references.pmid: 6948113
references.citation: J Prosthet Dent. 1982 Jun;47(6):606-11
references.pmid: 7047724
references.citation: J Prosthet Dent. 1996 Feb;75(2):129-34
references.pmid: 8667269
references.citation: J Dent. 1997 Nov;25(6):475-84
references.pmid: 9604578
references.citation: J Prosthet Dent. 1998 Jun;79(6):671-6
references.pmid: 9627896
references.citation: J Prosthet Dent. 1998 Sep;80(3):280-301
references.pmid: 9760360
references.citation: J Prosthet Dent. 1998 Oct;80(4):474-8
references.pmid: 9791796