High-performance resin developed for permanent crown applications ，delivering outstanding mechanical properties,natural esthetics,and reliable clinical outcomes.
A: This permanent crown resin features high flexural strength, excellent wear resistance, and long-term intraoral chemical stability, with mechanical performance close to natural teeth after curing. It is clinically suitable for fabricating single permanent crowns, inlays, onlays, and other fixed restorations, meeting long-term intraoral wear requirements.
A: Yes. Fully cured restorations can be ground and shaped with conventional dental burs. It is compatible with Zonmed resin staining materials and glaze kits, allowing color and translucency adjustment based on clinical shade matching results to achieve natural aesthetic restoration effects.
A: The product adopts a low-shrinkage formulation system. Under standardized printing and post-processing conditions, the dimensional shrinkage rate is controlled at an extremely low level. 25 μm layer thickness printing is recommended, providing excellent restoration marginal adaptation that meets clinical accuracy requirements for fixed restorations.
A: For high-precision restorations, 25 μm layer thickness is recommended, balancing detail reproduction and marginal accuracy. For scenarios requiring higher efficiency, 50 μm layer thickness can also be used. Specific values for base layer exposure and normal layer exposure need to be adjusted according to the corresponding 385-405nm printer model. You can request a dedicated parameter sheet for your specific device from our sales team.
A: The formulation contains anti-discoloration components. Under standardized use conditions, long-term intraoral wear does not easily cause obvious staining or aging discoloration. The material’s wear resistance has been optimized to withstand daily chewing friction, stably maintaining the restoration morphology and occlusal function.
A: With 25 μm layer thickness, the marginal step effect is weaker, marginal gap can be controlled within 30 μm, occlusal surface anatomical texture reproduction is finer, and wear uniformity is better, but printing time increases by approximately 60%. With 50 μm layer thickness, production efficiency is higher, marginal gap is approximately 50–70 μm, meeting routine clinical needs, but the reproduction of fine occlusal grooves and ridges is slightly weaker, and uneven wear at layer lines may occur after long-term wear. 25 μm layer thickness is recommended for high-precision anterior aesthetic crowns, while 50 μm layer thickness can be used for posterior routine functional crowns to balance efficiency and performance.
A: Water bath curing provides more uniform heat conduction and more thorough internal resin polymerization, with flexural strength approximately 10%–15% higher than dry curing, lower internal residual stress, and better dimensional stability after long-term thermal cycling. Dry curing is more convenient to operate with slightly higher surface hardness, but large-volume restorations are prone to surface over-curing and insufficient internal polymerization. For permanent crowns, 30°C warm water bath curing is primarily recommended to ensure overall mechanical properties and long-term stability.
A: It is recommended to use 50 μm alumina sand at 0.2 MPa pressure, uniformly spraying from a distance of 1–2 cm from the intaglio surface, focusing on the main bonding area and avoiding the 1 mm marginal area. Under these parameters, a uniform micro-rough surface can be formed, increasing resin cement bonding strength by approximately 40%. Excessive pressure or sandblasting the margin will cause marginal chipping and reduced accuracy, which negatively affects marginal adaptation.
A: The glaze material from the same system has slightly higher hardness than the base resin after curing. After glazing and sealing, surface hardness increases by approximately 20%, and wear resistance is simultaneously enhanced, without reducing wear resistance. At the same time, the glaze layer isolates pigments and wear, protecting the internal staining layer and extending color retention time. Note that glazing is prohibited on the intaglio surface, as it will significantly reduce bonding strength and lead to insufficient retention of the restoration.
A: After 30 days of immersion in artificial saliva at 37°C, the water absorption rate is below 1.2% and the dimensional change rate is less than 0.5%, which is within the clinically acceptable range and will not cause a significant increase in marginal gap or elevated secondary caries risk. The permanent resin is optimized with a low-water-absorption formulation, far superior to ordinary temporary C&B resins, providing reliable guarantee for long-term wear marginal sealing and dimensional stability.
