Autorotation of the mandible as sequelae to maxillary intrusion: A systematic review

Background: Autorotation of the mandible is a normally anticipated phenomenon following a surgical superior repositioning of the maxilla in clinical situations where patients have an excessive gummy smile. Prediction of the surgical treatment outcome following a presurgical orthodontic treatment is...

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Autores principales:	S Ganesh Kumar Reddy, Hisham M Ibrahim, Shweta Bhardwaj, Suraj Potdar, Akshay Kumar, Ashish Uppal, Heena Tiwari
Formato:	article
Lenguaje:	EN
Publicado:	Wolters Kluwer Medknow Publications 2021
Materias:	autorotation gummy smile maxillary intrusion vertical maxillary excess Pharmacy and materia medica RS1-441 Analytical chemistry QD71-142
Acceso en línea:	https://doaj.org/article/eedce42a458045629663bd6729ce5156
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spelling	oai:doaj.org-article:eedce42a458045629663bd6729ce51562021-11-19T12:15:51ZAutorotation of the mandible as sequelae to maxillary intrusion: A systematic review0975-740610.4103/jpbs.jpbs_389_21https://doaj.org/article/eedce42a458045629663bd6729ce51562021-01-01T00:00:00Zhttp://www.jpbsonline.org/article.asp?issn=0975-7406;year=2021;volume=13;issue=6;spage=947;epage=951;aulast=Reddyhttps://doaj.org/toc/0975-7406Background: Autorotation of the mandible is a normally anticipated phenomenon following a surgical superior repositioning of the maxilla in clinical situations where patients have an excessive gummy smile. Prediction of the surgical treatment outcome following a presurgical orthodontic treatment is a critical element in the surgical treatment planning. Materials and Methods: The relevant articles were selected by hand search and electronic media (Google Scholar, PubMed, Science Direct, Medline, Embase, and Cochrane) from 1982 to 2020. All the relevant articles were properly screened, and findings were extracted from the articles. Results: It was observed that, following maxillary intrusion, mandible would eventually autorotate to take a new occlusion. Mandibular autorotation as a result of maxillary intrusion would lead to minimal shortening of the lower lip in the vertical plane. It was observed that the amount of mandibular autorotation correlates with the extent of maxillary impaction. Studies have shown that there is a passive soft-tissue response which may be attributed to the fact that no muscular detachment had been affected in the lower lip and soft-tissue chin region during the maxillary surgery. Conclusion: It is observed that there is a definite influence on the mandibular and chin positions as a result of maxillary intrusion and autorotation of the mandible. Every 1 mm of maxillary superior impaction, the chin moved 0.6 mm vertically and 0.2 mm horizontally. There is an appreciable shortening of the lower lip length.S Ganesh Kumar ReddyHisham M IbrahimShweta BhardwajSuraj PotdarAkshay KumarAshish UppalHeena TiwariWolters Kluwer Medknow Publicationsarticleautorotationgummy smilemaxillary intrusionvertical maxillary excessPharmacy and materia medicaRS1-441Analytical chemistryQD71-142ENJournal of Pharmacy and Bioallied Sciences, Vol 13, Iss 6, Pp 947-951 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	autorotation gummy smile maxillary intrusion vertical maxillary excess Pharmacy and materia medica RS1-441 Analytical chemistry QD71-142
spellingShingle	autorotation gummy smile maxillary intrusion vertical maxillary excess Pharmacy and materia medica RS1-441 Analytical chemistry QD71-142 S Ganesh Kumar Reddy Hisham M Ibrahim Shweta Bhardwaj Suraj Potdar Akshay Kumar Ashish Uppal Heena Tiwari Autorotation of the mandible as sequelae to maxillary intrusion: A systematic review
description	Background: Autorotation of the mandible is a normally anticipated phenomenon following a surgical superior repositioning of the maxilla in clinical situations where patients have an excessive gummy smile. Prediction of the surgical treatment outcome following a presurgical orthodontic treatment is a critical element in the surgical treatment planning. Materials and Methods: The relevant articles were selected by hand search and electronic media (Google Scholar, PubMed, Science Direct, Medline, Embase, and Cochrane) from 1982 to 2020. All the relevant articles were properly screened, and findings were extracted from the articles. Results: It was observed that, following maxillary intrusion, mandible would eventually autorotate to take a new occlusion. Mandibular autorotation as a result of maxillary intrusion would lead to minimal shortening of the lower lip in the vertical plane. It was observed that the amount of mandibular autorotation correlates with the extent of maxillary impaction. Studies have shown that there is a passive soft-tissue response which may be attributed to the fact that no muscular detachment had been affected in the lower lip and soft-tissue chin region during the maxillary surgery. Conclusion: It is observed that there is a definite influence on the mandibular and chin positions as a result of maxillary intrusion and autorotation of the mandible. Every 1 mm of maxillary superior impaction, the chin moved 0.6 mm vertically and 0.2 mm horizontally. There is an appreciable shortening of the lower lip length.
format	article
author	S Ganesh Kumar Reddy Hisham M Ibrahim Shweta Bhardwaj Suraj Potdar Akshay Kumar Ashish Uppal Heena Tiwari
author_facet	S Ganesh Kumar Reddy Hisham M Ibrahim Shweta Bhardwaj Suraj Potdar Akshay Kumar Ashish Uppal Heena Tiwari
author_sort	S Ganesh Kumar Reddy
title	Autorotation of the mandible as sequelae to maxillary intrusion: A systematic review
title_short	Autorotation of the mandible as sequelae to maxillary intrusion: A systematic review
title_full	Autorotation of the mandible as sequelae to maxillary intrusion: A systematic review
title_fullStr	Autorotation of the mandible as sequelae to maxillary intrusion: A systematic review
title_full_unstemmed	Autorotation of the mandible as sequelae to maxillary intrusion: A systematic review
title_sort	autorotation of the mandible as sequelae to maxillary intrusion: a systematic review
publisher	Wolters Kluwer Medknow Publications
publishDate	2021
url	https://doaj.org/article/eedce42a458045629663bd6729ce5156
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Autorotation of the mandible as sequelae to maxillary intrusion: A systematic review

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