{"id":20865,"date":"2026-07-21T10:11:55","date_gmt":"2026-07-21T03:11:55","guid":{"rendered":"https:\/\/fkg.ugm.ac.id\/?p=20865"},"modified":"2026-07-21T10:11:57","modified_gmt":"2026-07-21T03:11:57","slug":"ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis","status":"publish","type":"post","link":"https:\/\/fkg.ugm.ac.id\/en\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\/","title":{"rendered":"When Water Temperature Determines the Fate of Manggosteen-Peel Dental Impression Material"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>A simple question arose in the laboratory: is cold water or warm water better for mixing a dental impression material made from mangosteen peel? The answer turns out to affect not only the reaction rate but also opens a new avenue in the search for more affordable local alternatives to conventional dental impression materials.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">The study, published in IDJ (Indonesian Dental Journal), Volume 1, No. 1, 2012, was conducted by Dian Yosi Arinawati of the Dentistry Study Programme at Universitas Muhammadiyah Yogyakarta, together with Dr. drg. Andi Triawan, Sp.Ort., from the Department of Orthodontics at the same institution. The researchers sought to determine something that had not previously been tested: whether the principle governing conventional alginate also applied to an innovative impression material derived from mangosteen fruit peel (Garcinia mangostana).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>From Tropical Fruit to the Dental Chair<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Impression materials are fundamental to restorative dental procedures. Without them, dentists cannot produce accurate replicas of teeth and oral tissues as a basis for fabricating restorations. Traditionally, irreversible hydrocolloid or alginate impression materials have dominated clinical practice. The problem is that alginate still depends on imports and is relatively expensive.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mangosteen peel has emerged as an interesting alternative candidate. The experimental impression material consisted of 10% mangosteen peel powder, 5% gypsum, 10% potassium sulphate, 20% silica gel, 25% zeolite, and 30% cassava flour. It is a relatively simple combination of local materials, yet one with considerable potential.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">One crucial requirement of an impression material is an adequate setting time, namely the time required for the material to completely harden after mixing begins. If it sets too quickly, the dentist does not have enough time to position the impression properly. If it sets too slowly, the patient must keep the material in their mouth longer than necessary. Factors affecting setting time include the water-to-powder ratio (W\/P ratio), fillers, and the temperature of the mixing water. However, modifying the W\/P ratio may alter the elasticity and strength of the gel. Changing the water temperature is considered a safer approach.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Five Temperatures, Twenty-Five Specimens<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">The research team prepared 25 specimens, evenly divided into five temperature groups: 10\u00b0C, 15\u00b0C, 20\u00b0C, 25\u00b0C, and 30\u00b0C. Each specimen consisted of 5 mg of mangosteen-peel impression material powder mixed with 5 mL of water at the assigned temperature. The mixture was stirred until homogeneous for one minute and then poured into a metal ring.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Setting time was measured using a cylindrical indicator rod made of poly(methyl methacrylate), 6 mm in diameter and 100 mm long. The rod was touched to the surface of the impression material every 10 seconds. Setting time was considered to have been reached when the material no longer adhered to the rod.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">The results were quite clear. At 10\u00b0C, the mean setting time was 202 seconds. At 15\u00b0C, the mean was 148 seconds. At 20\u00b0C, it decreased to 94 seconds, and at 25\u00b0C, to 86 seconds. The fastest setting occurred in the 30\u00b0C group, with a mean of only 46 seconds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u201cThe higher the temperature of the mixing water tested, the shorter (faster) the setting time. The fastest setting time was observed in the 30\u00b0C mixing-water group.\u201d \u2014 Dian Yosi Arinawati &amp; Dr. drg. Andi Triawan, Sp.Ort.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One-way ANOVA confirmed that the differences between temperatures were statistically significant (p &lt; 0.05). Further LSD testing at the 0.05 level showed significant differences between almost all groups, with one interesting exception: the 20\u00b0C and 25\u00b0C groups did not differ significantly from each other. Both fall within the typical room-temperature range and, physiologically, produced similar chemical reaction responses.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>One Important Number, One Open Question<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">The findings are consistent with the long-established principle observed with conventional alginate: warm water accelerates setting, while cold water slows it down. The same principle has now been demonstrated for the mangosteen-peel-based impression material. This is not insignificant, as there had previously been no scientific evidence validating this behaviour in this innovative material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">However, the researchers also highlighted the limitations of the findings. A good impression material cannot be evaluated solely on the basis of its setting time. Dimensional stability, strength, elasticity, and the chemical reactions occurring among the filler components require further investigation, particularly to meet ANSI\/ADA Specification No. 18, an international reference standard for alginate impression materials.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In other words, mangosteen peel has passed only one of the many tests required before it can stand alongside\u2014or potentially replace\u2014imported alginate in the dental chair. The journey is still long, but the direction is clear: local materials, measurable science, and potential that has yet to be fully explored.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Penulis : <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Photo: Pexels<\/p>","protected":false},"excerpt":{"rendered":"<p>Sebuah pertanyaan sederhana muncul di laboratorium: apakah air dingin atau air hangat yang lebih baik untuk mencampur bahan cetak gigi berbahan dasar kulit manggis? Jawabannya ternyata tidak hanya memengaruhi kecepatan reaksi, tetapi juga membuka cakrawala baru dalam pencarian alternatif bahan cetak lokal yang lebih terjangkau. Penelitian yang dipublikasikan dalam IDJ (Indonesian Dental Journal) Volume 1, [&hellip;]<\/p>\n","protected":false},"author":615,"featured_media":20866,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[359,136,326,322,318,316,321],"tags":[298,302,307,289,297],"class_list":["post-20865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-artikel","category-berita-terbaru","category-sdg-10","category-sdg-12","category-sdg-17","category-sdg-3","category-sdg-9","tag-sdg-10-mengurangi-ketidaksetaraan","tag-sdg-12-konsumsi-dan-produksi-yang-bertanggung-jawab","tag-sdg-17-kemitraan-untuk-mencapai-tujuan","tag-sdg-3-kesehatan-dan-kesejahteraan-yang-baik","tag-sdg-9-industri-inovasi-dan-infrastruktur"],"gutentor_comment":0,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ketika Suhu Air Menentukan Nasib Cetakan Gigi dari Kulit Manggis - Fakultas Kedokteran Gigi<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fkg.ugm.ac.id\/en\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ketika Suhu Air Menentukan Nasib Cetakan Gigi dari Kulit Manggis - Fakultas Kedokteran Gigi\" \/>\n<meta property=\"og:description\" content=\"Sebuah pertanyaan sederhana muncul di laboratorium: apakah air dingin atau air hangat yang lebih baik untuk mencampur bahan cetak gigi berbahan dasar kulit manggis? Jawabannya ternyata tidak hanya memengaruhi kecepatan reaksi, tetapi juga membuka cakrawala baru dalam pencarian alternatif bahan cetak lokal yang lebih terjangkau. Penelitian yang dipublikasikan dalam IDJ (Indonesian Dental Journal) Volume 1, [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fkg.ugm.ac.id\/en\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\/\" \/>\n<meta property=\"og:site_name\" content=\"Fakultas Kedokteran Gigi\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/p\/Fakultas-Kedokteran-Gigi-UGM-100075927681679\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-21T03:11:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-21T03:11:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/fkg.ugm.ac.id\/wp-content\/uploads\/sites\/30\/2026\/07\/pexels-alexeydemidov-12713202-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"achmadzamzamaghasy\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"achmadzamzamaghasy\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\\\/\"},\"author\":{\"name\":\"achmadzamzamaghasy\",\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/id\\\/#\\\/schema\\\/person\\\/5e527b2939dff262f173d10f32d2638a\"},\"headline\":\"Ketika Suhu Air Menentukan Nasib Cetakan Gigi dari Kulit Manggis\",\"datePublished\":\"2026-07-21T03:11:55+00:00\",\"dateModified\":\"2026-07-21T03:11:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\\\/\"},\"wordCount\":685,\"publisher\":{\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/id\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/wp-content\\\/uploads\\\/sites\\\/30\\\/2026\\\/07\\\/pexels-alexeydemidov-12713202-scaled.jpg\",\"keywords\":[\"SDG 10: Mengurangi Ketidaksetaraan\",\"SDG 12: Konsumsi dan Produksi yang Bertanggung Jawab\",\"SDG 17: Kemitraan untuk mencapai Tujuan\",\"SDG 3: Kesehatan dan Kesejahteraan yang Baik\",\"SDG 9: Industri, Inovasi dan Infrastruktur\"],\"articleSection\":[\"Artikel\",\"Berita Terbaru\",\"SDG 10\",\"SDG 12\",\"SDG 17\",\"SDG 3\",\"SDG 9\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\\\/\",\"url\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/ketika-suhu-air-menentukan-nasib-cetakan-gigi-dari-kulit-manggis\\\/\",\"name\":\"Ketika Suhu Air Menentukan Nasib Cetakan Gigi dari Kulit Manggis - 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