Publications by authors named "Qin-Feng Ding"

Purpose: To evaluate the soft tissue position changes in the lower 1/3 of face after application of the vestibular shield for correction of mouth dyspnea.

Methods: A total of 32 pediatric patients wearing vestibular shield appliances for mouth breathing correction were reviewed, and the changes of upper and lower lip positions as well as chin position before and after appliance treatment were compared and analysed. GraphPad Prism 6.

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Periodontitis and hypertension often occur as comorbidities, which need to be treated at the same time. To resolve this issue, a controlled-release composite hydrogel approach is proposed with dual antibacterial and anti-inflammatory activities as a resolution to achieve the goal of co-treatment of comorbidities. Specifically, chitosan (CS) with inherent antibacterial properties is cross-linked with antimicrobial peptide (AMP)-modified polyethylene glycol (PEG) to form a dual antibacterial hydrogel (CS-PA).

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Purpose: To evaluate the clinical effect of combined orthodontic and orthognathic treatment with invisible aligner technique without brackets in skeletal Class Ⅲ patients with facial asymmetry.

Methods: A total of 24 skeletal Class Ⅲ patients with facial asymmetry treated with combined orthodontic and orthognathic treatment during the past 4 years were reviewed. Patients in the experimental group(n=12) were treated with invisible aligner technique without brackets, while patients in the control group(n=12) were treated with traditional fixed orthodontic technique for pre- and post-operative orthodontic treatment respectively.

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