{"id":2481,"date":"2017-02-11T13:47:57","date_gmt":"2017-02-11T10:17:57","guid":{"rendered":"https:\/\/jamilian.net\/?p=2481\/"},"modified":"2026-01-19T10:56:48","modified_gmt":"2026-01-19T07:26:48","slug":"the-effects-of-facemask","status":"publish","type":"post","link":"https:\/\/jamilian.net\/en\/the-effects-of-facemask\/","title":{"rendered":"The effects of facemask"},"content":{"rendered":"\n<p class=\"has-text-align-left wp-block-paragraph\">Showkatbakhsh R, Jamilian A, Ghassemi M, Ghassemi A, , Taban T , Imani Z. The effects of facemask and reverse chin cup on maxillary deficient patients. Journal of Orthodontics. 2012:39, 95\u2013101<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Abstract<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">INTRODUCTION:<\/h4>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">The aim of this randomized clinical trial was to assess differences in the effects of face mask and reverse chin cup therapy on maxillary deficient growing patients.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">METHODS:<\/h3>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">The sample consisted of 42 class III patients with maxillary deficiency randomly divided into two equal groups. Twenty-one patients (10 males and 11 females) with a mean age of 8.9 (SD: 1.4) years were treated with a face mask for 18 (SD: 2) months. Twenty-one patients (9 males and 12 females) with the mean age of 9.2 (SD: 1.1) years were treated with a reverse chin cup for 19 (SD: 4) months. Cephalometric radiographs were taken at the beginning and end of treatment and the cephalometric measurements were analysed. Paired t-tests and a Wilcoxon test were used for intra-group evaluations. Mann-Whitney test was used for inter-group evaluations.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">RESULTS:<\/h3>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Sella-Nasion-A point (SNA) was increased by 1\u00b0 (SD: 1.7\u00b0) (P&lt;0.003) and 1.8\u00b0 (SD: 1.7\u00b0) (P&lt;0.001) in the face mask and reverse chin cup groups, respectively. The IMPA decreased by 4.1\u00b0 (SD: 6.5\u00b0) in face mask group (P&lt;0.009) and 3.1\u00b0 (SD: 4.7\u00b0) in the reverse chin cup group (P&lt;0.008). However, no statistically significant differences were seen in changes between the two groups.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">CONCLUSION:<\/h3>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Both face mask and reverse chin cup appliances are successful at moving the maxilla forward.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Showkatbakhsh R, Jamilian A, Ghassemi M, Ghassemi A, , Taban T , Imani Z. The effects of facemask and reverse chin cup on maxillary deficient patients. Journal of Orthodontics. 2012:39, 95\u2013101 Abstract INTRODUCTION: The aim of this randomized clinical trial was to assess differences in the effects of face mask and reverse chin cup therapy [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[229],"tags":[],"class_list":["post-2481","post","type-post","status-publish","format-standard","hentry","category-academic-orthodontic-research-en"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/posts\/2481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/comments?post=2481"}],"version-history":[{"count":0,"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/posts\/2481\/revisions"}],"wp:attachment":[{"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/media?parent=2481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/categories?post=2481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jamilian.net\/en\/wp-json\/wp\/v2\/tags?post=2481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}