Glass fiber lebih sering digunakan daripada polyethylene fiber sebagai komponen FRC dalam dunia kedokteran gigi. Glass fiber dental di Indonesia tersedia dalam jumlah terbatas dan memiliki harga yang relatif mahal. Tujuan dari penelitian ini adalah untuk memeriksa komposisi dari E-glass fiber dental dan glass fiber non dental menggunakan teknik XRF sehingga dapat ditentukan tipe dari masing-masing glass fiber non dental. Sampel terdiri dari 10 g E-glass fiber dental, 10 g fiberglass mats, 10 g fiberglass roving dan 10 g woven roving. Masing-masing sampel dihaluskan, selanjutnya dianalisa dengan dengan menggunakan X-Ray Fluorescence Spectrometer (XRF). Hasil analisa XRF sampel menunjukkan kandungan oksida terbesar pada E-glass fiber dental adalah SiO2 (45,47%), CaO (38,49%) dan Al2O3 (12,11%). Kandungan oksida terbesar pada fiberglass mats adalah SiO2 (56,88%), CaO (16,24%) dan Na2O (12,91%) demikian pula dengan woven roving yaitu SiO2 (55,86%), CaO (18,71%) dan Na2O (11,80%). Sedangkan fiberglass roving menunjukkan kandungan oksida terbesar antara lain SiO2 (52,56%), ZrO2 (14,64%) dan CaO (10,03%). Hal tersebut menunjukkan bahwa komposisi kandungan oksida pada sampel memiliki kemiripan dengan persentase yang berbeda. Berdasarkan pada analisis XRF disimpulkan bahwa glass fiber non dental jenis fiberglass mats dan woven roving mengarah ke tipe C-glass dan fiberglass roving mengarah ke tipe AR-glass.

The prevalence of caries among school children in West Sumatera is still high. Dental health education is important in order to increase dental health status in children because of that the development of a new strategy in dental health education is needed. One of the way is by using game, because children usually like that media. This study was aimed to find out the effectiveness of dental education game by using snake and ladder as the media in changing 7-8years old student’s knowledge about teeth and mouth. The method of this study was analytic experimental with non equivalent pre and post test control group design. Fourty one student's with 7-8 years old of two Elementary Schools ( 17 Manggis Ganting and 03 Pulai Anak Air elementary school ) were used as the study sample of experiment group, this group was given dental education games method with snake and ladder games as the media and fourty one student's with 7-8 years old of  17 Manggis Ganting and 03 Pulai Anak Air elementary school were used as the control group where in this group was given nothing. Analysis of data was using Paired Samples T-Test and Independent Samples T-Test based on 0,05 as significant. The pretest and posttest analysis of knowledge showed that  mean percentage of experiment group is 13,32% ±12,475 and 4,44% ±11,713 for the control group. Both of groups have significant difference where p=0,00(p<0,05).  Dental education games method with snake and ladder games as media was effective in increasing student’s knowledge in comparing with the control group. So in order to increase dental health knowledge, dental education games could be use as one of dental education method for 7-8 years old students.

Introduction:Tooth remineralization agent can be found in pasteurized milk and soy milk. Ca 2+ and PO 4 3ions concentration in both products inhibited hydroxyapatite dissolution and enhanced remineralization. This study was aimed to investigate the effect of pasteurized milk and pure soy milk on tooth enamel remineralization. Methods:This study was an experimental laboratory with pre-test post-test control group design. Twenty-seven maxillary premolars were divided into 3 groups; 37% phosphoric acid used to demineralized the samples followed by initial enamel hardness measurement. All samples were immersed in aquadest, pasteurized milk, and pure soy milk for 14 days, 102 minutes per day. Final enamel hardness was measured with the Vickers hardness test. Results:Increasing enamel hardness was found in all groups. Two-way ANOVA test was used to compare the increase of enamel hardness in all group, which showed the p-value = 0.002. Post-hoc LSD test was then used to compare the increase of the enamel hardness in pasteurized milk and pure soy milk groups, which resulted in the p-value = 0.147. Conclusion:There was an effect of pasteurized milk and pure soy milk group on enamel remineralization. However, there was no difference in the increase of enamel hardness value between pasteurized milk and pure soy milk groups.

Fiber Reinforced Composite (FRC) menggunakan E-glass fiber dental dalam bidang kedokteran gigi telah banyak diaplikasikan secara klinis, salah satunya dalam aplikasi splinting periodontal. Ketersediaan E-glass fiber dental di Indonesia masih terbatas dengan harga relatif mahal. Terdapat glass fiber non dental di Indonesia yang banyak digunakan bidang teknik, dengan harga terjangkau. Tujuan dari penelitian ini untuk mengetahui pengaruh orientasi dan volumetrik glass fiber non dental terhadap kekuatan perlekatan geser FRC pada splinting periodontal. Bahan penelitian berupa glass fiber non dental yang terdiri dari tiga jenis yaitu glass fiber mats (LT, China), glass fiber roving (CMAX, China), dan glass fiber woven roving (HJ, China), serta E-glass fiber dental (Fiber-Splint, Polidentia SA, Switzerland). Objek dibagi menjadi 8 kelompok, masing-masing kelompok terdiri atas 4 sampel. Kelompok I (kontrol) tanpa penambahan glass fiber non dental, kelompok II E-glass fiber dental 2,8 vol%, dan kelompok III - VIII terdiri dari glass fiber non dental mats, glass fiber non dental roving, dan glass fiber non dental woven roving, dengan fraksi volumetrik 2,8 dan 5,4 vol%. Seluruh sampel direndam dalam air destilasi selama 24 jam pada suhu 37o C. Pengujian kekuatan perlekatan geser menggunakan Universal Testing Machine. Data dianalisis menggunakan ANAVA dua jalur, uji t dan LSD. Hasil penelitian menunjukkan rerata kekuatan perlekatan geser (MPa) terendah pada kelompok tanpa fiber (kontrol) (8,95 ± 0,95) dan tertinggi pada 5,4 vol% glass fiber non dental woven roving (14,11 ± 0,35). Hasil analisis ANAVA dua jalur menunjukkan variabel orientasi dan volumetrik glass fiber non dental memberikan pengaruh signifikan (p<0,05). Uji post hoc LSD dan uji t menunjukkan perbedaan signifikan (p<0,05) pada seluruh kelompok perlakuan untuk variabel orientasi dan volumetrik. Kesimpulan penelitian ini adalah orientasi dan volumetrik glass fiber non dental memberikan pengaruh terhadap peningkatan kekuatan perlekatan geser FRC.

Introduction: Alginate impression material is the most commonly used in dentistry to get a negative mold of the oral tissues. Alginate impression material has imbibition effect when in contact with the liquid during the disinfection process. This study aimed to observe the imbibition effect on alginate impression material soaked and sprayed using Aloe vera juice. Methods: The research method used was a laboratory experimental with pretest and posttest. Alginate was molded by using a mold with the size of 28 mm in diameter and 18 mm high. The results of molding alginate were soaked and sprayed using Aloe vera juice 100% for 5 minutes and 10 minutes. Calculation of imbibition was performed by weighing using digital scales. The normality tested by Shapiro-Wilk and the data were analyzed by Mann Whitney. Result: The results showed that there were imbibition effects on alginate molding soaked and sprayed for 5 minutes and 10 minutes, the test indicated that there were significant differences (p<0.05) between 10 minutes and 5 minutes soaking. Meanwhile, between 5 minutes and 10 minutes spraying, no significant difference was obtained (p>0.05). Conclusion:This study concludes that it occurs the smallest imbibition effect on a spraying treatment using Aloe vera 100% for five minutes.