Background: The objective of this paper is to show the clinical results after the repeated application of a Haas expander for rapid maxillary expansion (RME) anchored onto deciduous teeth in a 7-year-old patient that presented bilateral cross-bite, superior crowding and no space for permanent lateral incisors eruption. Case report: A first Haas expander was applied to the patient. She was told to activate it once a day, each activation was equal to 0.20 mm. After the first RME, the bilateral cross-bite was solved but still there was not enough space for lateral incisor eruption. A second and then a third Haas expander were applied, with the same activation protocol as the first one, in order to gain space in the anterior region and to achieve proper eruption of the lateral incisors. The patient was then treated with fixed appliances. At debonding the patient presented well aligned archforms: space for lateral incisor eruption was gained and superior crowding was solved. Bilateral cross-bite was also corrected. She was seen again 10 years and 17 years after expansions: she showed no relapse and presented a good functional occlusion that had remained stable, and an aesthetically pleasant smile, however she exhibited gingival recessions. Conclusion: Repeated rapid maxillary expansion, anchored onto deciduous teeth, performed in early mixed dentition represents a safe and successful treatment to correct severe bilateral cross-bites and to create space for maxillary incisor eruption.

Bilateral cross-bite treated by repeated rapid maxillary expansions : A 17-year follow-up case / M. Cozzani, L. Mazzotta, A. Caprioglio. - In: EUROPEAN JOURNAL OF PAEDIATRIC DENTISTRY. - ISSN 2035-648X. - 15:2 suppl.(2014), pp. 177-180.

Bilateral cross-bite treated by repeated rapid maxillary expansions : A 17-year follow-up case

A. Caprioglio
2014

Abstract

Background: The objective of this paper is to show the clinical results after the repeated application of a Haas expander for rapid maxillary expansion (RME) anchored onto deciduous teeth in a 7-year-old patient that presented bilateral cross-bite, superior crowding and no space for permanent lateral incisors eruption. Case report: A first Haas expander was applied to the patient. She was told to activate it once a day, each activation was equal to 0.20 mm. After the first RME, the bilateral cross-bite was solved but still there was not enough space for lateral incisor eruption. A second and then a third Haas expander were applied, with the same activation protocol as the first one, in order to gain space in the anterior region and to achieve proper eruption of the lateral incisors. The patient was then treated with fixed appliances. At debonding the patient presented well aligned archforms: space for lateral incisor eruption was gained and superior crowding was solved. Bilateral cross-bite was also corrected. She was seen again 10 years and 17 years after expansions: she showed no relapse and presented a good functional occlusion that had remained stable, and an aesthetically pleasant smile, however she exhibited gingival recessions. Conclusion: Repeated rapid maxillary expansion, anchored onto deciduous teeth, performed in early mixed dentition represents a safe and successful treatment to correct severe bilateral cross-bites and to create space for maxillary incisor eruption.
Deciduous teeth used as anchorage; Dentistry (all); Pediatrics; Perinatology and Child Health; Medicine (all)
Settore MED/28 - Malattie Odontostomatologiche
http://admin.ejpd.eu/download/ejpd_2014_2suppl_2.pdf
Article (author)
File in questo prodotto:
File Dimensione Formato  
Cozzani M. et al. - EJPD 2-2014 - Bilateral cross-bite treated by repeated rapid maxillary expansions a 17-years follow-up case..pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 537.68 kB
Formato Adobe PDF
537.68 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/795277
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact