Two‐body wear of occlusal splint materials

Abstract

This study investigates the wear resistance of four different types of occlusal splint materials based on two-body wear simulations under wet and dry conditions. Twenty specimens of each splint material (Dentalon Plus, Orthoplast, Biocryl C, and Eclipse), each with a diameter of 16 mm and a thickness of 3 mm, were tested, half under wet and half under dry conditions. Each wear test was performed using a device called chewing simulator CS-4 (n=10; test load: 50 N; number of cycles: 10000, 20000, and 30000; continuous rinsing with 30°C water for wet conditions); the antagonists were simulated using steel balls. Wear was determined using a 3D laser scanner and a surface analysis program. To detect significant statistical differences, wear data after 10000; 20000; and 30000 cycles were compared using the Kruskal-Wallis test and the Mann-Whitney U-test. The level of significance was set at 5%. Significant differences were found between the groups of different materials tested under wet conditions (P<0.05), whereas no differences between them were found under dry conditions (P>0.05). No significant difference was found between the wet and dry conditions for all materials and cycles (P>0.05). For groups of different materials tested under wet conditions, the degree of volume loss generated in the Chewing Simulator CS-4 was found to differ significantly for different numbers of cycles. The presence of water had no effect on the volume loss in the different material groups that were tested.

Surface roughness and wear behavior of occlusal splint materials made of contemporary and high-performance polymers

“…Although, these materials display interesting properties, they are not considered ideal due to potential thermal irritation unpleasant taste, dimensional changes, time consuming process, residual monomers, unfavorable shape or color, susceptibility to fracture, increased risk of denture-associated infections, and skin or respiratory allergies which can affect both patients and dental technicians [12][13][14][15][16][17]. Besides, in the case of bruxism or parafunction, these materials tend to wear over time, even when the splint is used for a short period of time [11,13]. Wear prevents occlusal contacts from being in equilibrium which is important for a successful splint therapy and reduces the longevity of appliance [5,18].…”

Analysis of compressive strength of occlusal splints manufactured with three liquid resins at three angles of orientation on 3D printer

“…In the present study and on Hirai et al (2017) and Vasques, 2018, the occlusal splints were designed with 2 mm of thickness from the longest cuspid. Kurt et al (2012) designed the occlusal splints with 3 mm of thickness to quantify the wearing on different plates.…”

Two-Body Wear of Occlusal Splint Materials Against Different Antagonists

“…This will ensure that each patient is provided an occlusal splint appliance based on his/her masticatory load. The wear process observed clinically is multifactorial and complex, which has been investigated by various research groups in vitro and in vivo The force used in this study was 50 N, and 10,000, 20,000, and 30,000 cycles were used to determine the effect of the different number of cycles 11,15,16 . In previous studies, acrylic dentures were subjected to loads ranging from 13.5 and 50 N for 10,000-100,000 cycles for evaluating the artificial acrylic and composite resin teeth teeth, and a force of 9.1 kg was used 8-10, 12 .…”