{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T11:21:21Z","timestamp":1791890481083,"version":"4.3.4"},"reference-count":62,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,5]]},"abstract":"ABSTRACT<\/jats:title>\n \n Objective<\/jats:title>\n To evaluate pharyngeal airway and maxillary sinus volumes following symmetric rapid maxillary expansion (RME) and asymmetric rapid maxillary expansion (ARME) treatment using cone-beam computed tomography (CBCT).<\/jats:p>\n <\/jats:sec>\n \n Materials and Methods<\/jats:title>\n \n The study consisted of 60 patients presenting to the orthodontics clinic with an indication that they required symmetric or asymmetric rapid maxillary expansion treatment. Individuals were included if they were aged 12\u201315 years and had symmetric (RME group; 14 girls, 16 boys) or asymmetric (ARME group; 16 girls, 14 boys) maxillary deficiency. Maxillary sinus volume (mm\n 3<\/jats:sup>\n ) and pharyngeal airway volume (upper, lower, and total; mm\n 3<\/jats:sup>\n ) were evaluated using CBCT records. The parameters were compared before treatment (T1) and after 3 months in retention (T2).\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n All measurements at T2 were increased significantly compared with T1 in the RME group (\n P<\/jats:italic>\n < .05). In the ARME group, changes in the lower pharyngeal airway and the nonaffected maxillary sinus volumes (non-affected side of maxillary sinus volumes) were not significant; however, the other measurements increased significantly from T1 to T2 (\n P<\/jats:italic>\n < .05). Intergroup comparisons revealed that total pharyngeal airway volume and total maxillary sinus volume changes were significantly greater in the RME group.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n Pharyngeal airway and maxillary sinus volumes increased with both RME and ARME treatment. Both were found to be effective for treating transverse maxillary deficiency.<\/jats:p>\n <\/jats:sec>","DOI":"10.2319\/050819-320.1","type":"journal-article","created":{"date-parts":[[2020,1,14]],"date-time":"2020-01-14T11:58:54Z","timestamp":1579003134000},"page":"425-431","source":"Crossref","is-referenced-by-count":20,"title":["Effects of symmetric and asymmetric rapid maxillary expansion treatments on pharyngeal airway and sinus volume:"],"prefix":"10.2319","volume":"90","author":[{"given":"Emire Aybuke","family":"Erdur","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mucahid","family":"Y\u0131ld\u0131r\u0131m","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rabia Merve Celik","family":"Karatas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehmet","family":"Akin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"i0003-3219-90-3-425-b01","series-title":"Am J Orthod","first-page":"491","article-title":"Posterior cross-bites in the deciduous and mixed dentitions","volume":"56","author":"Kutin","year":"1969","unstructured":"Kutin\n G,\n \n \n Hawes\n RR.\n \n \n Posterior cross-bites in the deciduous and mixed dentitions.\n\t\t\t\t\tAm J Orthod.\n\t\t\t\t\t1969;\n\t\t\t\t\t56:\n\t\t\t\t\t491\u2013\n\t\t\t\t\t504."},{"key":"i0003-3219-90-3-425-b02","series-title":"Acta Otolaryngol","first-page":"1","article-title":"Adenoids. 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Their effect on mode of breathing and nasal airflow and their relationship to characteristics of the facial skeleton and the dentition","volume":"265","author":"Linder-Aronson","year":"1970","unstructured":"Linder-Aronson\n S.\n \n \n Adenoids. Their effect on mode of breathing and nasal airflow and their relationship to characteristics of the facial skeleton and the dentition.\n\t\t\t\t\tActa Otolaryngol.\n\t\t\t\t\t1970;\n\t\t\t\t\t265:\n\t\t\t\t\t1\u2013\n\t\t\t\t\t132."},{"key":"i0003-3219-90-3-425-b03","series-title":"Eur J Orthod","first-page":"271","article-title":"Sucking habits and their influence on swallowing pattern and prevalence of malocclusion","volume":"1","author":"Melsen","year":"1979","unstructured":"Melsen\n B,\n \n \n Steengard\n K,\n \n \n Pedersen\n J.\n \n \n Sucking habits and their influence on swallowing pattern and prevalence of malocclusion.\n\t\t\t\t\tEur J Orthod.\n\t\t\t\t\t1979;\n\t\t\t\t\t1:\n\t\t\t\t\t271\u2013\n\t\t\t\t\t280."},{"key":"i0003-3219-90-3-425-b04","series-title":"Am J Orthod","first-page":"334","article-title":"Mouth breathing in allergic children: its relationship to dentofacial development","volume":"83","author":"Bresolin","year":"1983","unstructured":"Bresolin\n D,\n \n \n Shapiro\n PA,\n \n \n Shapiro\n GG,\n \n \n Chapko\n MK,\n \n \n Dassel\n S.\n \n \n Mouth breathing in allergic children: its relationship to dentofacial development.\n\t\t\t\t\tAm J Orthod.\n\t\t\t\t\t1983;\n\t\t\t\t\t83:\n\t\t\t\t\t334\u2013\n\t\t\t\t\t340."},{"key":"i0003-3219-90-3-425-b05","series-title":"Am J Orthod Dentofacial Orthop","first-page":"8","article-title":"Skeletal effects to the maxilla after rapid maxillary expansion assessed with cone-beam computed tomography","volume":"134","author":"Garrett","year":"2008","unstructured":"Garrett\n BJ,\n \n \n Caruso\n JM,\n \n \n Rungcharassaeng\n K,\n \n \n Farrage\n JR,\n \n \n Kim\n JS,\n \n \n Taylor\n GD.\n \n \n Skeletal effects to the maxilla after rapid maxillary expansion assessed with cone-beam computed tomography.\n\t\t\t\t\tAm J Orthod Dentofacial Orthop.\n\t\t\t\t\t2008;\n\t\t\t\t\t134:\n\t\t\t\t\t8\u2013\n\t\t\t\t\t9."},{"key":"i0003-3219-90-3-425-b06","series-title":"Am J Orthod Dentofacial Orthop","first-page":"164","article-title":"Asymmetric maxillary expansion (AMEX) appliance for treatment of true unilateral posterior crossbite","volume":"122","author":"Toroglu","year":"2002","unstructured":"Toroglu\n MS,\n \n \n Uzel\n E,\n \n \n Kayalioglu\n M,\n \n \n Uzel\n I.\n \n \n Asymmetric maxillary expansion (AMEX) appliance for treatment of true unilateral posterior crossbite.\n\t\t\t\t\tAm J Orthod Dentofacial Orthop.\n\t\t\t\t\t2002;\n\t\t\t\t\t122:\n\t\t\t\t\t164\u2013\n\t\t\t\t\t173."},{"key":"i0003-3219-90-3-425-b07","series-title":"Angle Orthod","first-page":"799","article-title":"Alveolar bone changes after asymmetric rapid maxillary expansion","volume":"85","author":"Akin","year":"2015","unstructured":"Akin\n M,\n \n \n Baka\n ZM,\n \n \n Ileri\n Z,\n \n \n Basciftci\n FA.\n \n \n Alveolar bone changes after asymmetric rapid maxillary expansion.\n\t\t\t\t\tAngle Orthod.\n\t\t\t\t\t2015;\n\t\t\t\t\t85:\n\t\t\t\t\t799\u2013\n\t\t\t\t\t805."},{"key":"i0003-3219-90-3-425-b08","series-title":"Am J Orthod Dentofacial Orthop","first-page":"569","article-title":"Skeletal and dental changes in the sagittal, vertical, and transverse dimensions after rapid palatal expansion","volume":"126","author":"Chung","year":"2004","unstructured":"Chung\n CH,\n \n \n Font\n B.\n \n \n Skeletal and dental changes in the sagittal, vertical, and transverse dimensions after rapid palatal expansion.\n\t\t\t\t\tAm J Orthod Dentofacial Orthop.\n\t\t\t\t\t2004;\n\t\t\t\t\t126:\n\t\t\t\t\t569\u2013\n\t\t\t\t\t575."},{"key":"i0003-3219-90-3-425-b09","series-title":"Angle Orthod","first-page":"73","article-title":"Rapid expansion of the maxillary dental arch and nasal cavity by opening the mid palatal suture","volume":"31","author":"Haas","year":"1961","unstructured":"Haas\n AJ.\n \n \n Rapid expansion of the maxillary dental arch and nasal cavity by opening the mid palatal suture.\n\t\t\t\t\tAngle Orthod.\n\t\t\t\t\t1961;\n\t\t\t\t\t31:\n\t\t\t\t\t73\u2013\n\t\t\t\t\t89."},{"key":"i0003-3219-90-3-425-b10","series-title":"Angle Orthod","first-page":"152","article-title":"Facioskeletal and dental changes resulting from rapid maxillary expansion","volume":"36","author":"Starnbach","year":"1966","unstructured":"Starnbach\n H,\n \n \n Bayne\n D,\n \n \n Cleall\n J,\n \n \n Subtelny\n JD.\n \n \n Facioskeletal and dental changes resulting from rapid maxillary expansion.\n\t\t\t\t\tAngle Orthod.\n\t\t\t\t\t1966;\n\t\t\t\t\t36:\n\t\t\t\t\t152\u2013\n\t\t\t\t\t164."},{"key":"i0003-3219-90-3-425-b11","series-title":"Am J Orthod Dentofacial Orthop","first-page":"618","article-title":"Three-dimensional computed tomography analysis of airway volume changes after rapid maxillary expansion","volume":"141","author":"Smith","year":"2012","unstructured":"Smith\n T,\n \n \n Ghoneima\n A,\n \n \n Stewart\n K,\n \n et al.\n\t\t\t\t\t\n Three-dimensional computed tomography 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3-dimensional reconstruction by high resolutional CT scanning","volume":"132","author":"Jun","year":"2005","unstructured":"Jun\n BC,\n \n \n Song\n SW,\n \n \n Park\n CS,\n \n \n Lee\n DH,\n \n \n Cho\n KJ,\n \n \n Cho\n JH.\n \n \n The analysis of maxillary sinus aeration according to aging process; volume assessment by 3-dimensional reconstruction by high resolutional CT scanning.\n\t\t\t\t\tOtolaryngol Head Neck Surg.\n\t\t\t\t\t2005;\n\t\t\t\t\t132:\n\t\t\t\t\t429\u2013\n\t\t\t\t\t434."},{"key":"i0003-3219-90-3-425-b14","series-title":"Am J Orthod Dentofacial Orthop","first-page":"354","article-title":"Three dimensional assessment of morphologic changes in the maxilla: a comparison of 2 kinds of palatal expanders","volume":"126","author":"Oliveria","year":"2004","unstructured":"Oliveria\n NL,\n \n \n Da Silveira\n AC,\n \n \n Kusnoto\n B,\n \n \n Viana\n G.\n \n \n Three dimensional assessment of morphologic changes in the maxilla: a comparison of 2 kinds of palatal 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volume and bony thickness of the paranasal sinuses in longstanding pediatric chronic rhinosinusitis.\n\t\t\t\t\tInt J Pediatr Otorhinolaryngol.\n\t\t\t\t\t2008;\n\t\t\t\t\t72:\n\t\t\t\t\t103\u2013\n\t\t\t\t\t108."},{"key":"i0003-3219-90-3-425-b17","series-title":"Am J Orthod Dentofacial Orthop","first-page":"S71","article-title":"Oropharyngeal airway changes after rapid palatal expansion evaluated with cone-beam computed tomography","volume":"137","author":"Zhao","year":"2010","unstructured":"Zhao\n Y,\n \n \n Nguyen\n M,\n \n \n Gohl\n E,\n \n \n Mah\n JK,\n \n \n Sameshima\n G,\n \n \n Enciso\n R.\n \n \n Oropharyngeal airway changes after rapid palatal expansion evaluated with cone-beam computed tomography.\n\t\t\t\t\tAm J Orthod Dentofacial Orthop.\n\t\t\t\t\t2010;\n\t\t\t\t\t137:\n\t\t\t\t\tS71\u2013\n\t\t\t\t\tS78."},{"key":"i0003-3219-90-3-425-b18","series-title":"Angle Orthod","first-page":"265","article-title":"Three-dimensional evaluation of upper airway following rapid maxillary expansion: a CBCT study","volume":"84","author":"El","year":"2014","unstructured":"El\n H,\n \n \n Palomo\n JM.\n \n \n Three-dimensional evaluation of upper airway following rapid maxillary expansion: a CBCT study.\n\t\t\t\t\tAngle Orthod.\n\t\t\t\t\t2014;\n\t\t\t\t\t84:\n\t\t\t\t\t265\u2013\n\t\t\t\t\t273."},{"key":"i0003-3219-90-3-425-b19","series-title":"Am J Orthod Dentofacial Orthop","first-page":"815","article-title":"Morphologic changes of the nasal cavity induced by rapid maxillary expansion: a study on 3-dimensional computed tomography models","volume":"136","author":"Haralambidis","year":"2009","unstructured":"Haralambidis\n A,\n \n \n Ari-Demirkaya\n A,\n \n \n Acar\n A,\n \n \n K\u00fc\u00e7\u00fckkele\u015f\n N,\n \n \n Ate\u015f\n M,\n \n \n Ozkaya\n S.\n \n \n Morphologic changes of the nasal cavity induced by rapid maxillary expansion: a study on 3-dimensional computed tomography models.\n\t\t\t\t\tAm J Orthod Dentofacial Orthop.\n\t\t\t\t\t2009;\n\t\t\t\t\t136:\n\t\t\t\t\t815\u2013\n\t\t\t\t\t821."},{"key":"i0003-3219-90-3-425-b20","series-title":"Am J Orthod","first-page":"41","article-title":"Skeletal and dental changes accompanying rapid midpalatal suture opening","volume":"58","author":"Wertz","year":"1970","unstructured":"Wertz\n RA.\n \n \n Skeletal and dental changes accompanying rapid midpalatal suture opening.\n\t\t\t\t\tAm J Orthod.\n\t\t\t\t\t1970;\n\t\t\t\t\t58:\n\t\t\t\t\t41\u2013\n\t\t\t\t\t66."},{"key":"i0003-3219-90-3-425-b21","series-title":"Imaging Sci Dent","first-page":"83","article-title":"Does hyrax expansion therapy affect maxillary sinus volume? A cone-beam computed tomography report","volume":"42","author":"Darsey","year":"2012","unstructured":"Darsey\n DM,\n \n \n English\n JD,\n \n \n Kau\n CH,\n \n \n Ellis\n RK,\n \n \n Akyalcin\n S.\n \n \n Does hyrax expansion therapy affect maxillary sinus volume? 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Rapid maxillary expansion in the primary and mixed dentitions: a cephalometric evaluation","volume":"100","author":"da Silva Filho","year":"1991","unstructured":"da Silva Filho\n OG,\n \n \n Boas\n MC,\n \n \n Capelozza Filho L. Rapid maxillary expansion in the primary and mixed dentitions: a cephalometric evaluation.\n\t\t\t\t\tAm J Orthod Dentofacial Orthop.\n\t\t\t\t\t1991;\n\t\t\t\t\t100:\n\t\t\t\t\t171\u2013\n\t\t\t\t\t179."},{"key":"i0003-3219-90-3-425-b26","series-title":"Int J Pediatr Otorhinolaryngol","first-page":"122","article-title":"Does rapid maxillary expansion increase nasopharyngeal space and improve nasal airway resistance?","volume":"75","author":"Langer","year":"2011","unstructured":"Langer\n MR,\n \n \n Itikawa\n CE,\n \n \n Valera\n FC,\n \n \n Matsumoto\n MA,\n \n \n Anselmo-Lima\n WT.\n \n \n Does rapid maxillary expansion increase nasopharyngeal space and improve nasal airway resistance?\n Int J Pediatr Otorhinolaryngol.\n\t\t\t\t\t2011;\n\t\t\t\t\t75:\n\t\t\t\t\t122\u2013\n\t\t\t\t\t125."},{"key":"i0003-3219-90-3-425-b27","series-title":"Int J Oral Maxillofac Surg","first-page":"1227","article-title":"Cone-beam computerized tomography imaging and analysis of the upper airway: a systematic review of the literature","volume":"40","author":"Guijarro-Mart\u00ednez","year":"2011","unstructured":"Guijarro-Mart\u00ednez\n R,\n \n \n Swennen\n GR.\n \n \n Cone-beam computerized tomography imaging and analysis of the upper airway: a systematic review of the literature.\n\t\t\t\t\tInt J Oral Maxillofac Surg.\n\t\t\t\t\t2011;\n\t\t\t\t\t40:\n\t\t\t\t\t1227\u2013\n\t\t\t\t\t1237."},{"key":"i0003-3219-90-3-425-b28","series-title":"Angle Orthod","first-page":"458","article-title":"Upper airway expansion after rapid maxillary expansion evaluated with cone beam computed tomography","volume":"82","author":"Ribeiro","year":"2012","unstructured":"Ribeiro\n AN,\n \n \n de Paiva\n JB,\n \n \n Rino-Neto\n J,\n \n \n Illipronti-Filho\n E,\n \n \n Trivino\n T,\n \n \n Fantini\n SM.\n \n \n Upper airway expansion after rapid maxillary expansion evaluated with cone beam computed tomography.\n\t\t\t\t\tAngle 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