Limits...
A comparative evaluation of the effect of dentin desensitizers on the retention of complete cast metal crowns.

Chandavarkar SM, Ram SM - Contemp Clin Dent (2015)

Bottom Line: The samples were tested using a universal testing machine by applying a load at a crosshead speed of 0.5 mm/min.Statistical analysis included One-way ANOVA, followed by the Scheffe post-hoc test with P < 0.05.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.

View Article: PubMed Central - PubMed

Affiliation: Bethany Hospital, Thane, STVJS Charitable Trust, Thane, Shri Vagad Welfare Hospital, Kutch, India.

ABSTRACT

Context: Desensitizers are used to reduce dentin hypersensitivity. They affect the surface texture of prepared dentin and may alter the retention of fixed restorations.

Aims: The aim was to evaluate the effect of dentin desensitizers on the retention of complete cast metal crowns luted with glass ionomer cement.

Subjects and 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.

Statistical analysis used: 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.

No MeSH data available.


Related in: MedlinePlus

Statistical comparison of tensile stresses
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4374318&req=5

Figure 4: Statistical comparison of tensile stresses

Mentions: The result of One-way ANOVA presented in Table 1 indicates that the mean tensile stress of at least one group differs significantly from one of the remaining groups [Figure 4]. Post-hoc Scheffe test in Table 2 shows that the mean tensile stress (MPa) for CPP-ACP and Pro-Argin are similar. Laser, Control, and GLU based primer are similar whereas, the mean tensile stress for Laser differs significantly.


A comparative evaluation of the effect of dentin desensitizers on the retention of complete cast metal crowns.

Chandavarkar SM, Ram SM - Contemp Clin Dent (2015)

Statistical comparison of tensile stresses
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4374318&req=5

Figure 4: Statistical comparison of tensile stresses
Mentions: The result of One-way ANOVA presented in Table 1 indicates that the mean tensile stress of at least one group differs significantly from one of the remaining groups [Figure 4]. Post-hoc Scheffe test in Table 2 shows that the mean tensile stress (MPa) for CPP-ACP and Pro-Argin are similar. Laser, Control, and GLU based primer are similar whereas, the mean tensile stress for Laser differs significantly.

Bottom Line: The samples were tested using a universal testing machine by applying a load at a crosshead speed of 0.5 mm/min.Statistical analysis included One-way ANOVA, followed by the Scheffe post-hoc test with P < 0.05.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.

View Article: PubMed Central - PubMed

Affiliation: Bethany Hospital, Thane, STVJS Charitable Trust, Thane, Shri Vagad Welfare Hospital, Kutch, India.

ABSTRACT

Context: Desensitizers are used to reduce dentin hypersensitivity. They affect the surface texture of prepared dentin and may alter the retention of fixed restorations.

Aims: The aim was to evaluate the effect of dentin desensitizers on the retention of complete cast metal crowns luted with glass ionomer cement.

Subjects and 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.

Statistical analysis used: 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.

No MeSH data available.


Related in: MedlinePlus