Background: The polishing procedure is an essential step in composite resin restoration. There are two types of polishing systems, which are one-step and multi-step polishing systems. Purpose: This study aimed to identify the effect of different polishing systems on the surface roughness of ormocer and supranano spherical filler composite resin. Material and Methods: This study was conducted in an experimental laboratory. The specimens were ormocer and supranano spherical filler composite resin filled in a cylindric metal mold. The total of specimens was thirty-two (n=32) of each composite resin. Each composite resin specimen was divided into four groups, then polished using PoGo (group 1 – one-step polishing system), Optrapol (group 2 – one-step polishing system), Sof-lex (group 3 – multistep polishing system), and Optidisc (group 4 – multistep polishing system). Specimens were incubated at 37℃ for 24 hours. Subsequently, specimens were assessed with a stylus profilometer surfcorder SE 1700. Data were analyzed using an independent t-test and one-way ANOVA. Result: There was a significant difference in surface roughness of the one-step and multistep groups (p ≤ 0.05). The lowest surface roughness value was in the Sof-Lex disc group (0.4026μm), and the highest surface roughness was in the PoGo group (1.1036μm). Conclusion: Based on composite resin, supranano spherical filler had less surface roughness than ormocer (p ≤ 0.05). Furthermore, both ormocer and supranano spherical filler polished using a multistep polishing system had lower surface roughness than those polished using a one-step polishing system.

ABSTRAK Kesehatan gigi dan mulut merupakan pintu  utama yang mempengaruhi kesehatan sistemik secara keseluruhan. Seperti kita ketahui gigi berfungsi untuk pengunyahan, berbicara (fonasi), estetika dan perlindungan terhadap jaringan pendukung gigi. Upaya peningkatan kesehatan gigi dan mulut  dilakukan agar masyarakat dapat tetap tersenyum, gigi tetap sehat dan berfungsi dengan baik. Mengajak masyarakat untuk selalu menjaga kebersihan mulut, meningkatkan kualitas kesehatan gigi dan mulut, mengajak masyarakat untuk selalu kontrol ke dokter gigi minimal 6 bulan sekali dan memberikan edukasi tentang kesehatan gigi dan mulut kepada masyarakat. Pada kegiatan ini dilakukan perawatan dalam upaya preventif  meliputi penyuluhan, edukasi dan sikat gigi masal kepada anak-anak Taman Kanak-kanak, Sekolah Dasar, dan SLB. Upaya kuratif dengan melakukan perawatan gigi sederhana seperti penambalan gigi pada gigi berlubang, scaling pada  peradangan pada gusi yang ringan dan sedang, serta pencabutan gigi anak pada gigi goyah dan gigi dewasa yang sudah tidak dapat dipertahankan kembali. Upaya preventif berupa sikat gigi masal dilakukan pada anak-anak dengan sebaran taman kanak-kanak 25%, sekolah dasar 43%, PAUD 18% dan anak SLB 14%. Upaya kuratif yang dilakukan dalam bidang bedah mulut berupa pencabutan gigi tanpa komplikasi sebanyak 8,5%, konservasi gigi meliputi penambalan gigi dengan resin komposit sebanyak 25.3% , bidang periodonsi berupa pembersihan karang gigi sebanyak 48,1%, perawatan pada anak berupa topikal aplikasi dan fissure sealant sebanyak 20,8% dan perawatan lain-lain seperti premedikasi dan dental health education (DHE) sebanyak 5,9%. Kegiatan Bulan Kesehatan Gigi dan Mulut Nasional yang dilakukan di RSGM, UMY mampu melakukan upaya preventif berupa penyuluhan sejumlah 125 peserta dan sikat gigi masal sejumlah 277 siswa dan upaya kuratif dengan berbagai perawatan sebanyak 1207 pasien. Kegiatan ini mampu memecahkan masalah kesehatan gigi dan mulut pada masyarakat Yogyakarta.  ABSTRACT Oral health is the main entry that affects overall systemic health. As we know, teeth function for mastication, speech (phonation), esthetics, and protection of the supporting tissues of the teeth. This effort is made so people can keep smiling because their teeth are healthy and functioning correctly. This activity aims to invite the public always to maintain oral hygiene, improve the quality of dental and oral health, invite the public to control the dentist at least once every six months continuously, and provide education about dental and oral health to the public. In this activity, preventive maintenance was carried out, including counseling, education, and mass tooth brushing for children in Kindergarten, Elementary Schools, and Special Schools. Curative efforts by carrying out simple dental treatments such as dental fillings for cavities, scaling for mild and moderate inflammation of the gums, and removing children's teeth for loose and adult teeth that can no longer be maintained. Preventive efforts in the form of mass toothbrushes were carried out on children with a distribution of 25% kindergartens, 43% elementary schools, 18% PAUD, and 14% SLB children. Curative efforts were made in the field of oral surgery in the form of a tooth extraction without complications as much as 8.5%, dental conservation including dental fillings with composite resin as much as 25.3%, in the field of periodontics in the form of cleaning tartar as much as 48.1%, treatment in children in the form of topical applications and fissure sealants as much as 20.8% and other treatments such as premedication and dental health education (DHE) as much as 5.9%. During the National Dental and Oral Health Month activity at the Academic Dental Hospital, UMY carried out preventive as and curative efforts with various treatments for as many as 1207 patients. This activity can solve dental and oral health problems in Yogyakarta.

Instrumen endodontik patah merupakan salah satu komplikasi yang paling sering terjadi pada perawatan saluran akar. Pengambilan intrumen yang patah dari saluran akar merupakan prosedur yang sulit, terutama ketika menembus hingga periapikal. Laporan kasus ini bertujuan menyajikan penatalaksanaan bedah pengambilan instrumen endodontik patah pada periapikal gigi molar pertama maksila. Seorang pria berusia 29 tahun dirujuk ke departemen konservasi gigi karena mengeluhkan sakit yang tumpul dan intermiten pada gigi molar pertama kiri atas dan bertambah sakit ketika menggigit. Pasien menjelaskan telah menjalani perawatan saluran akar yang tidak lengkap sekitar 2 bulan yang lalu. Pemeriksaan klinis menunjukkan terdapat tumpatan sementara pada permukaan oklusal molar pertama kiri atas dan respon positif pada pemeriksaan perkusi. Berdasarkan pemeriksaan radiograf periapikal, terdapat sebuah segmen file patah yang ekstrusi keluar dari akar mesio bukal dengan obturasi saluran akar yang tidak hermetis pada saluran akar. Pengambilan instrumen patah dilakukan dengan bedah periapikal (teknik retrograde), selanjutnya dilakukan reseksi akar mesiobukal. Penatalaksanaan instrumen endodontik patah hingga daerah periapikal dengan bedah periapikal merupakan pilihan perawatan yang menunjukkan hasil dan prognosis yang baik.

The change of hospital image become socio-economic organizations requires hospital has to be able to finance its operations and compete to gain the market share. Dental Hospital of Univesitas Muhammadiyah Yogyakarta is hospital in Yogyakarta. Hospital uses various marketing strategies to seize and retain consumer. One of them is making good brand image to get consumer loyalty. The purpose of study was to determine the influence of brand image towards brand loyalty of Dental Hospital of Universitas Muhammadiyah Yogyakarta. The type study was quantitative research with causality and descriptive explanation. The samples were dental specialist pastient of Dental Hospital of Universitas Muhammadiyah Yogyakarta who had visited more than once with quota sampling technique. Data analysis was multiple regression analysis. The results showed brand image dimensions had a positive and significant simultaneously influence toward consumer loyalty of Dental Hospital of Universitas Muhammadiyah Yogyakarta. The favorability of brand association and uniqueness of brand association had positive and significant influence towards brand loyalty, while the strength of brand association had positive and insignificant influence towards brand loyalty. The conclusion of the study showed brand image had a positive and significant influence towards brand loyalty of Dental Hospital of Universitas Muhammadiyah Yogyakarta. Perubahan citra rumah sakit menjadi organisasi sosio-ekonomis mengharuskan rumah sakit mampu membiayai operasional dan bersaing untuk mendapatkan pangsa pasar. Rumah Sakit Gigi dan MulutUniversitas Muhammadiyah Yogyakarta (RSGM UMY) merupakan rumah sakit khusus gigi dan mulut di Yogyakarta. Rumah sakit menggunakan berbagai strategi pemasaran untuk merebut dan mempertahankan konsumen, salah satunya dengan membentuk citra merek yang baik untuk mendapatkan loyalitas konsumen. Tujuan penelitian ini adalah untuk mengetahui pengaruh citra merek terhadap loyalitas merek RSGM UMY. Jenis penelitian adalah penelitian kuantitatif dengan penjelasan kausalitas dan deskriptif. Sampel yang digunakan adalah pasien poli gigi umum dan spesialis RSGM UMY yang telah melakukan kunjungan lebih dari satu kali teknik pengambilan sampel quota sampling. Analisis data yang digunakan adalah analisis regresi berganda. Hasil penelitian menunjukkan bahwa dimensi citra merek berpengaruh positif dan signifikan secara simultan terhadap loyalitas merek. Keunggulan asosiasi merek dan keunikan asosiasi merek berpengaruh positif dan signifikan terhadap loyalitas merek, sedangkan kekuatan asosiasi merek berpengaruh positif dan tidak signifikan terhadap loyalitas merek RSGM UMY. Kesimpulan penelitian adalah citra merek berpengaruh positif dan signifikan terhadap loyalitas merek RSGM UMY.

Hybrid composite resin is a restorative material that has a filler size ranging from 0.4 to 1.0 µm which is resistant to fracture, has a colour similar to the tooth structure, and resistant to abrasion. Hybrid composite resin has the property of absorbing liquid like robusta coffee. Robusta coffee contains acids that can cause surface roughness in hybrid composite resins. The purpose of this study was to determine the effect of Robusta coffee immersion on the surface roughness of the hybrid composite resin. The research sample amounted to 27 which were printed in the form of a cylinder measuring 10 mm and a thickness of 4 mm. Each sample was immersed in distilled water for 24 h and then tested for surface roughness. Group A was immersed in robusta coffee solution for 3 days. Group B was immersed in robusta coffee solution for 5 days. Group C was immersed in robusta coffee solution for 7 days. Then, the surface roughness of the sample was measured using the Surfcorder SE 1700 brand surface roughness tool and the results were paired t-test and One Way Anova. The results of the paired t-test showed p-value = 0.000 which means that there is a significant difference between the pre-test and post-test scores. The results of the One Way Anova test showed p-value = 0.039, which means that there was a significant difference between the sample groups. There is an effect of robusta coffee immersion on the surface roughness of the composite resin.