SEBA & ProTorque™
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A More Natural Smile for Some
People of various ethnicities show differences in hair, skin and eye color, as well as other physical and structural anatomy. Dr. Raymond Sugiyama has conducted extensive research into the rationale for an orthodontic bracket prescription different from standard prescriptions which are derived from Caucasian norms and measurements. Evidence-based data shows statistically significant differences in the dental anatomy and tooth-bone anatomy when comparing Caucasians to other ethnic patients. For example, studies show that the angle formed by the intersection of the upper and lower incisors (inter-incisal angle) of Asian, Black, and Latin-Hispanic patients ranges from 10-16.6 degrees less than that of Caucasians. This is the result of the increased proclination of the upper and lower incisors relative to the basal bones in these groups. This fact suggests the need for more torque in the anterior teeth for this group of ethnic patients.
The SEBA and ProTorque™ prescription is ideally suited for Asian, Black, and Latin-Hispanic patients and also patients with a Class II Division 2 type malocclusion. The added torque keeps the roots in the middle of the basal bone and helps to maintain the natural fullness of the lips in this group of patients. The SEBA and ProTorque™ prescription offers patients the advantages of an appliance that will maximize their dental and facial esthetics and enhance their chances for long-term stability by placing teeth in a more natural and functional position than Caucasian-based bracket systems.