title: Effect of Desensitising Laser Treatment on the Bond Strength of Full Metal Crowns: An In Vitro Comparative Study.
abstract: BACKGROUND
  Dentinal hypersensitivity is a very common complaint of patients undergoing crown and bridge restorations on vital teeth. Of the many desensitizing agents used to counter this issue, desensitizing laser treatment is emerging as one of the most successful treatment modality. However, the dentinal changes brought about by the desensitizing laser application could affect the bond strength of luting cements.
  
  
  METHODS
  Freshly extracted 48 maxillary first premolars, which were intact and morphologically similar were selected for the study. The specimens were divided into two groups, an untreated the control group and a desensitizing laser-treated group, which were exposed to Erbium, Chromium: Yttrium, Selenium, Galium, Garnet laser at 0.5 W potency for 15 s. Each of the above two groups were again randomly divided into two subgroups, on to which full veneer metal crowns, which were custom fabricated were luted using glass-ionomer and resin luting cements, respectively. Tensile bond strength of the luting cements was evaluated with the help of a Universal Testing Machine. Statistical analysis of the values were done using descriptive, independent samples' test, and two-way ANOVA test.
  
  
  RESULTS
  The tensile bond strength of crowns luted on desensitizing laser treated specimens using self-adhesive resin cement showed a marginal increase in bond strength though it was not statistically significant.
  
  
  CONCLUSIONS
  The self-adhesive resin cements could be recommended as the luting agent of choice for desensitizing laser treated abutment teeth, as it showed better bond strength.
authors.affiliation: Senior Lecturer, Department of Prosthodontics, College of Dental Sciences, Amargadh, Gujarat, India.
authors.forename: Sanajay
authors.initials: S
authors.lastname: Kumar
authors.affiliation: Head, Department of Prosthodontics, Coorg Institute of Dental Sciences, Coorg, Karnataka, India.
authors.forename: P L
authors.initials: PL
authors.lastname: Rupesh
authors.affiliation: Professor and Head, Department of Conservative Dentistry, CSMSS Dental College & Hospital, Kanchanwadi, Aurangabad, Maharashtra, India.
authors.forename: Sadashiv G
authors.initials: SG
authors.lastname: Daokar
authors.affiliation: PG Student, Department of Conservative Dentistry, CSMSS Dental College & Hospital, Kanchanwadi, Aurangabad, Maharashtra, India.
authors.forename: Anita Kalekar
authors.initials: AK
authors.lastname: Yadao
authors.affiliation: Lecturer, Department of Conservative Dentistry, MA Rangunwala Dental College & Hospital, Pune, Maharashtra, India.
authors.forename: Dhananjay B
authors.initials: DB
authors.lastname: Ghunawat
authors.affiliation: PG Student, Department of Conservative Dentistry, CSMSS Dental College & Hospital, Kanchanwadi, Aurangabad, Maharashtra, India.
authors.forename: Sadaf Siddiqui
authors.initials: SS
authors.lastname: Sayed
keywords: Crowns; dentinal hypersensitivity; laser; luting cement; tensile bond strength