ST (High Strength Series) material is the first generation material launched by us.

ST (High Strength Series) is widely acknowledged by its price advantage and excellent stress retention brings well orthodontic force and accelerate the treatment.

CF (Comfortable series) material is improved to meet patients’ different requirements for wearing comfort and flexibility.

CF (Comfortable series) material has better flexibility and softness than ST (High Strength Series). So it’s easier for patients to take on and take off the Aligners/Retainers.