U.S., Nov. 20 -- ClinicalTrials.gov registry received information related to the study (NCT07236775) titled 'Treatment Outcome of Clear Aligner and Traditional Fixed Appliances in Four Premolar Extraction Cases' on Nov. 14.
Brief Summary: Patients with severe crowding requiring the extraction of four premolars will be enrolled in this study. The degree of apical root resorption associated with using the clear aligner technique compared with vestibular fixed appliances in the treatment of severe crowding malocclusion cases requiring the extraction of first premolars will be evaluated using cone beam computed tomography (CBCT) volumes.
There are two groups:
First group (Experimental): the patients in this group will be treated using clear ...