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Timing of Therapeutic Extractions Can Affect En Masse Anterior Retraction: A Split Mouth Randomized Clinical Trial.
Turk J Orthod
December 2024
Government Dental College, Kozhikode, Faculty of Orthodontics and Dentofacial Orthopaedics, Kerala, India.
Objective: To investigate the effect of deferred timing of therapeutic extraction on the rate of space closure during en masse anterior retraction.
Methods: Twenty-six patients (aged 16-24 years) with bimaxillary protrusion, crowding <3 mm, requiring bilateral extraction of four first premolars were recruited. Permuted block randomization was done.
Correction of Class I Bimaxillary Protrusion Using Sliding Mechanics With Mini-implant Anchorage: A Case Report.
Cureus
November 2024
Department of Orthodontics and Dentofacial Orthopaedics, Manav Rachna Dental College, Manav Rachna International Institute of Research and Studies, Faridabad, IND.
Class I bimaxillary protrusion is characterized by proclined incisors, a convex facial profile, procumbent lips, and increased lip strain. Treatment includes the extraction of premolars and the mesial movement of the proclined anterior teeth in the extraction spaces to correct the inclination. This case report describes the treatment of an 18-year-old male patient who presented with class I bimaxillary protrusion and procumbent lips.
View Article and Find Full Text PDFEffect of archwire size and lever arm length on anterior and posterior teeth movement during en-masse retraction in personalized lingual orthodontics: A 3-dimensional finite element study.
Int Orthod
December 2024
Department of Orthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China. Electronic address:
Article Synopsis
- The study aimed to analyze how different archwire sizes and lever arm lengths affect tooth movement during en-masse retraction in lingual orthodontics.
- Different archwires with specific dimensions and extra torques were tested, and various lever arm lengths were used to exert a consistent force of 1.5N.
- Results showed that thicker archwires and longer lever arms improved the control and effectiveness of moving anterior teeth while also influencing the positioning of posterior teeth.
Objective: To compare the space closure, root resorption and canine angulation during en-masse retraction of the labial segment after extraction of first premolars with or without interseptal bone reduction distal to the maxillary canines.
Design: A single-centre, parallel randomised control trial included 16 participants with a mean age of 21.5 years.
Evaluation of Treatment Effects of en Masse Mandibular Arch Distalization Using Skeletal Temporary Anchorage Devices: A Systematic Review.
Cureus
October 2024
Orthodontics and Dentofacial Orthopaedics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND.
Mandibular arch distalization using temporary anchorage devices (TADs) is effective in correcting borderline Class lll cases without surgery. This review analysed the existing literature evaluating the dental, skeletal, and soft tissue changes after en masse mandibular arch distalization using TADs. We followed PRISMA guidelines and registered this review in PROSPERO database CRD42023450524.
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