48th Annual EPA and the 27th Scientific TPID Congress, Nevşehir, Türkiye, 11 - 13 Eylül 2025, ss.141, (Özet Bildiri)
OBJECTIVES: The aim of this study was to comparing the bond strenght between four types of artificial teeth with two types of light curing denture base materials [3D printed and urethane dimethacrylate denture bases (UDMA)]. MATERİALS and METHODS: The Artificial teeth chosen as first maxillary molar in our study are conventional acylic tooth, composite resin based isosit tooth and two types 3D printed denture teeth (Powerresin and Saremco). Denture bases are 3D printed denture base and UDMA. The maxillary molars were bonded with cylindrical denture base resin with a diameter of 5mm and a thickness of 2.5mm (n=10). Thermal cycling was applied to all groups (5–55°C, 5,000 cycles). Then eight subgroups were tested. Shear bond testing was performed by applying a parallel force to the denture teeth-denture base resin interface by using a blade-edge chisel with a crosshead speed of 5 mm/min until failure occurred. Shear bond strenght was recorded in MPa. Tukey test and Man Whitney U test were used in the evaluation of the data obtained and to find the groups that differed. RESULTS: When 3D and UDMA base groups were compared in terms of bond strength of artificial teeth, the difference between the groups was statistically significant. (p<0.05) The Saremco tooth group showed the highest bond strenght with 3D base (8.75 ± 1.04 MPa). The acrylic tooth group showed the highest bond strength with UDMA base (3.94 ± 0.55 MPa). Acrylic and isosite teeth bonded better with the UDMA base, while 3D teeth bonded better to the 3D base. CONCLUSIONS: Since the bonding of the teeth with the base is also important in the long-term use of removable prostheses, the choice of 3D and Saremco teeth for 3D base material and acrylic teeth for UDMA base material can be preferred primarily. Keywords: UDMA, 3D Printed base, Artificial teeth, Composite resin