Optimal Wax Thickness: Ensure the wax used matches the ideal thickness required for the case. Avoid extremes in thickness as thicker wax-ups increase the likelihood of air bubble formation. TCS wax patterns can aid in achieving the right wax thickness.
Strategic Sprue Placement: Place sprues strategically, avoiding close proximity to the teeth to prevent air bubbles beneath them. Opt for positioning the sprues at the tip end of the wax-up.
Proper Tooth Size Selection: Choose tooth sizes that fit appropriately without leaving excessive thick wax underneath. Opting for longer teeth can minimize the occurrence of bubbles under the teeth.
Precision in Heat and Pressure: Adhere strictly to the manufacturer’s instructions regarding time, temperature, and pressure settings, as different resins and injection units have varied requirements.
Cartridge Size Selection: Select cartridges according to the case’s needs, especially when thicker wax-ups are necessary. Using larger cartridges can help prevent bubble formation.
Moderate Separator Application: Apply a measured amount of separator, allowing it to absorb properly. Avoid using dense separators excessively, as they may hinder material flow, leading to air bubbles and unusual marks.