The purpose of this study is to demonstrate that changing aligners weekly provides similar results to changing aligners every two weeks.

The Invisalign® System consists of a series of clear plastic aligners that are intended to replace conventional wire and bracket technology for many orthodontic cases. Each custom manufactured aligner exerts gentle, continuous forces to move teeth incrementally from their original state to a final, treated state. The aligners are designed to optimally move each tooth at a speed that follows physiologic principles. The purpose of this study is to demonstrate that changing aligners weekly provides similar results to changing aligners every two weeks.

Inclusion Criteria:

• Subject must have fully erupted dentition except for 2nd and 3rd molars
• For Teen treatment group, subjects ages <17 years of age
• For Adult treatment group, subjects ≥17 years of age

Exclusion Criteria:

• Subject has undergone any accelerated orthodontic treatment prior to or during treatment as part of this study
• Subject with active caries
• Subject with periodontal disease
• Subject with TMD symptoms
• Subject has known allergy to latex or plastic
• Subjects who are pregnant or will become pregnant during treatment

Invisalign patients from selected pool of investigators