IADR Abstract Archives
Three-body Wear of Fissure Sealants
Objectives: The efficiency of fissure sealants may be reduced due to occlusal wear. The aim of this investigation was to compare and rank the wear resistance of different fissure sealant materials in a three-body abrasion test.
Methods: Rectangular specimens were fabricated of the seven sealants Clinpro Sealant (3M Espe, G), Delton FS+ (Dentsply-Detrey, G), Embrace WetBond (Pulpdent, USA), experimental sealant Grandio Seal (Voco, G), Guardian Seal (Kerr, USA), Helioseal F (Ivoclar-Vivadent, FL) and Ultraseal XT plus (Ultradent, USA) according to the manufacturers instructions. A laboratory-made veneering composite (Sinfony, 3M Espe, G) was used as a reference. Three-body wear testing was performed (ACTA, Willytec, G; sample 130 r/min, antagonist 60 r/min, 20N) using a mixed millet sheet - rice food bolus. The wear trace was measured in comparison to the non-worn surface (Perthometer S6P, Mahr-Feinprüf, G). Measurements were performed every 20.000 cycles up to 120.000 cycles. Statistics: Mann-Whitney-U-Test (α=0.05).
Results: (after 120.000 cycles)
| Material | Sinfony (reference) | Guardian Seal | Embrace WetBond | Helioseal F | Clinpro Sealant | Delton FS+ | Ultraseal XT plus | Grandio Seal (exp.) |
| Wear [µm] | ||||||||
| Median (25%/75%) | 86 (80/89) | 130 (128/140) | 92 (91/95) | 95 (92/99) | 115 (113/116) | 69 (63/73) | 62 (62/64) | 53 (46/53) |
The experimental fissure sealant, Ultraseal XT plus and Delton FS+ showed the significantly highest wear resistance. Only Clinpro Sealant and Guardian Seal had higher wear than the reference.
Conclusion: There were found significant differences between the three-body wear resistance of fissure sealants. Five of seven materials showed comparable or higher wear resistance than a veneering reference.