T3 clip access is front and center on the facial surface of the bracket. Opening and closing require only gentle rolling forces, comfortable for the patient.
The most reliable opening method for spring clip style brackets, like In-Ovation R*, is from the gingival, and is subject to poor visibility, especially in the posterior or in patients with inflamed gums. Opening requires heavier forces and can be uncomfortable for patients.
Sliding gate style brackets, like Damon* system brackets, can also require heavier, uncomfortable opening forces, particularly as treatment progresses and bio-debris builds up in the clip mechanisms.
Other clip designs have substantial portions of metal on metal sliding contact, which are prone to calculus and plaque accumulation. This bio-debris buildup can make the clips frustrating to open and leads to uncomfortable wire changes for patients.