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MINERVA STOMATOLOGICA

A Journal on Dentistry and Maxillofacial Surgery


Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
Indexed/Abstracted in: CAB, EMBASE, Index to Dental Literature, PubMed/MEDLINE, Scopus, Emerging Sources Citation Index


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Minerva Stomatologica 2017 Apr 11

DOI: 10.23736/S0026-4970.17.04045-6

Copyright © 2017 EDIZIONI MINERVA MEDICA

language: English

Orthodontic­-surgical treatment and respiratory function: rhinomanometric assessment

Guido GALBIATI, Cinzia MASPERO, Lucia GIANNINI, Guia C. GUENZA, Federica ZANONI, Giampietro FARRONATO

Department of Orthodontics, UOC of Maxillo­Facial Surgery and Dentistry, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Milan, Italy


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BACKGROUND: Several correlations between morphological and/or positional alterations of the jaws and respiratory functional impairments have been reported. NAO (Nasal airway obstruction) represents a big deal with no clearly defined "gold­ standard" in measurement. Rhinomanometry was adopted by multiple Authors to evaluate whether patients with malocclusion developed respiratory functional changes after an orthodontic­surgical treatment. However there are contrasting findings in literature regarding the possibility of improving respiratory function by means of SARPE or bimaxillary repositioning of the bony bases.
METHODS: Ten patients ranging from 18 to 30 years of age scheduled for orthodontic­surgical treatment of maxillary constriction volunteered as participants for the study. Orthognatic surgery consisted in: a. surgically­assisted rapid palatal expansion in 4 patients; b. Le Fort I down fracture combined with a bilateral sagittal split osteotomy (BSSO) in 6 patients. All patients underwent a computerized rhinomanometric test before treatment (T0) and 40 days after surgery, at the time of the inter­maxillary splint removal (T1). Specifically, all 10 patients received AAR evaluations, while 6 patients received both AAR and APR evaluations.
RESULTS: Both AAR and APR tests showed a decrease in mean nasal resistance following the intervention. As regards the AAR, a difference of 0.19 Pascal/sec per cm3 was found. The difference found for APR 75 Pascal was 0.24 Pascal/sec per cm3, while for APR 150 Pascal is of 0.20 Pascal/sec per cm3.
CONCLUSIONS: This study helps to confirm respiratory benefits obtainable after mono and bi­maxillary orthognathic surgery.


KEY WORDS: Orthodontic - Surgical treatment - Rhinomanometry - Respiratory function - SARPE - Bimaxillary surgery

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giampietro.farronato@unimi.it