{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,21]],"date-time":"2025-09-21T17:19:29Z","timestamp":1758475169845},"reference-count":20,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2012,12,20]],"date-time":"2012-12-20T00:00:00Z","timestamp":1355961600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2013,3]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>The purpose of this study was to identify the risk factors associated with the masticatory dysfunction after maxillectomy using a colour\u2010changing chewing gum. Thirty\u2010nine patients who underwent maxillectomy between January 2002 and May 2010 in the Department of Kobe University Hospital were recruited for this study. There were 20 male and 19 female subjects, with a median age of 73\u00b73\u00a0years (range of 44\u201390) at the time of surgery. The intra\u2010oral conditions after maxillectomy were classified by <jats:styled-content style=\"fixed-case\">HS<\/jats:styled-content> classification, and the masticatory function was evaluated by a colour\u2010changing chewing gum and the results of a modified <jats:styled-content style=\"fixed-case\">S<\/jats:styled-content>ato's questionnaire. The scores of the colour\u2010changing gum were closely correlated with the scores of the modified <jats:styled-content style=\"fixed-case\">S<\/jats:styled-content>ato's questionnaire (<jats:italic>r<\/jats:italic>\u00a0=\u00a00\u00b7661, <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00\u00b701). A logistic regression analysis with the outcome variable of the gum test &lt;4 demonstrated that significant predictors for the masticatory dysfunction were the number of anchor teeth \u22642 and a soft palate defect. A colour\u2010changing gum was found to be useful for evaluating the post\u2010operative masticatory function, and it was important to conserve the anchor teeth and the soft palate to avoid masticatory dysfunction.<\/jats:p>","DOI":"10.1111\/joor.12023","type":"journal-article","created":{"date-parts":[[2012,12,21]],"date-time":"2012-12-21T19:42:28Z","timestamp":1356118948000},"page":"191-198","source":"Crossref","is-referenced-by-count":15,"title":["Evaluation of masticatory function after maxillectomy using a colour\u2010changing chewing gum"],"prefix":"10.1111","volume":"40","author":[{"given":"Y.","family":"Shibuya","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Ishida","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Kobayashi","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"Hasegawa","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Nibu","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology \u2010 Head and Neck Surgery Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"Komori","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2012,12,20]]},"reference":[{"key":"e_1_2_6_2_1","first-page":"121","article-title":"Quality of life in patients with obturator prostheses","volume":"22","author":"Riaz N","year":"2010","journal-title":"J Ayub Med Coll Abbottabad"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2842.2005.01483.x"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-3913(89)90047-4"},{"key":"e_1_2_6_5_1","first-page":"173","article-title":"A simple method for evaluating masticatory performance using a colour\u2010changeable chewing gum","volume":"11","author":"Hayakawa I","year":"1998","journal-title":"Int J Prosthodont"},{"key":"e_1_2_6_6_1","first-page":"e1","article-title":"Evaluations of masticatory performance of complete denture wearers using colour\u2010changeable chewing gum and other evaluating methods","volume":"54","author":"Ishikawa Y","year":"2007","journal-title":"J Med Dent Sci"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpor.2009.08.001"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.2186\/jjps.46.103"},{"key":"e_1_2_6_9_1","first-page":"15","article-title":"Proposal for new classification (HS classification) of maxillary defects","volume":"2","author":"Matsuura M","year":"1979","journal-title":"Maxillofac Prosthet"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2842.2008.01917.x"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0722.2009.00675.x"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2842.2007.01773.x"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2842.2003.01009.x"},{"key":"e_1_2_6_14_1","first-page":"145","article-title":"Masticatory performance in postmaxillectomy patients with edentulous maxillae fitted with obturator prostheses","volume":"20","author":"Ono T","year":"2007","journal-title":"Int J Prosthodont"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.2334\/josnusd.46.113"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2842.2011.02229.x"},{"key":"e_1_2_6_17_1","unstructured":"IshidaS ShibuyaY KobayashiM KomoriT.Usefulness of a color\u2010changeable chewing gum as a post\u2010operative tester in the mandibulectomy. 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