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Title: A New Orthodontic-Surgical Approach to Mandibular Retrognathia
Authors: Vale, Francisco 
Queiroga, Joana 
Pereira, Flávia 
Ribeiro, Madalena 
Marques, Filipa 
Travassos, Raquel 
Nunes, Catarina 
Paula, Anabela Baptista 
Francisco, Inês 
Keywords: distraction osteogenesis; mandible; orthognathic surgery
Issue Date: 8-Nov-2021
Publisher: MDPI
Serial title, monograph or event: Bioengineering
Volume: 8
Issue: 11
Abstract: (1) Background: Mandibular deficiency is one of the most common growth disorders of the facial skeleton. Recently, distraction osteogenesis has been suggested as the treatment of choice for overcoming the limitations of conventional orthognathic surgery; (2) Methods: A new custom-manufactured dental-anchored distractor was built and anchored in the first molar and lower canine. It consists of a stainless-steel disjunction screw, adapted and welded to the orthodontic bands through two 1.2 mm diameter connector bars with a universal silver-based and cadmium-free solder; (3) Results: The distractor described can be a useful tool to correct mandibular retrognathia and is better tolerated by patients, especially in severe cases; (4) Conclusions: The dental-anchored distractor increases the anterior mandibular bone segment without affecting the gonial angle or transverse angulation of the segments and avoids posterior mandibular rotation, overcoming the limitations of conventional surgical treatment.
ISSN: 2306-5354
DOI: 10.3390/bioengineering8110180
Rights: openAccess
Appears in Collections:FMUC Medicina - Artigos em Revistas Internacionais
I&D ICBR - Artigos em Revistas Internacionais
I&D CIBB - Artigos em Revistas Internacionais

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