NON-DENTAL GLASS FIBER IMPACT ON TENSILE STRENGTH OF FIBER REINFORCED ACRYLIC RESIN IN DENTURE BASE

Background: Acrylic resin is a dental material that is often used because it is easy to apply and has good aesthetics. One type of acrylic resin used for denture base materials in dentistry is Heat Cured Acrylic Resin (HCAR). HCAR as base for dentures also has disadvantages including low tensile strength. Therefore, fiber can be added to heat cured acrylic resin as a reinforcing material (FRAR). This study aims to determine the effect of the addition of non-dental glass fiber on the tensile strength of HCAR.Method: This is a true experimental research using posttest only control group design. Divided into two groups, the first one is HCAR without the addition of non-dental glass fiber, the second group is HCAR with the addition of non-dental glass fiber. The data are tested using the Independent T-Test parametric test.Result: The average tensile strength of the HCAR without Non Dental Glass Fiber was 46.5169 MPa, while the average tensile strength of HCAR with the addition of Non Dental Glass Fiber was 60.3269 MPa. The independent test results show p value of = 0.000Conclusion: It was found that heat cured acrylic resin with the addition of non-dental glass fiber has a higher tensile strength than heat cured acrylic resin without the addition of non-dental glass fiber which could be used as an alternative choice in applications in dentistry

SURFACE DETERIORATION OF GIC TYPE II BASED ON ITS EXPIRATION DATE AFTER IMMERSION IN CARBONATED DRINK

Background: Inside the oral cavity, restoration always in contact with wet condition, including carbonated drink with low pH level and erosive potential. Sometimes, materials are stored for prolonged time exceeding their expiration date. This research aimed to determine the effect of expiration date (ED) of GIC type II toward its surface deterioration (surface hardness and roughness) when immersed in carbonated drink.Method: This was an experimental laboratory using GIC type II with ED of 2014,2016 and 2021. Ten cylindrical specimens per group were made (d=10mm, h=2mm). Surface hardness and roughness measurements were done prior andafter specimens were immersed for seven days in carbonated drink. Carbonateddrinks were changed daily to maintain its pH level.Result: There were reduction in surface roughness and increased in surfaceroughness after immersed for seven days. The greatest deterioration occurred ingroup expired in 2014. Based on the Kruskal Wallis test result, there was a signifcant difference in surface hardness alteration (p=0.000) and surface roughness alteration (p=0.000) based on its ED.Conclusion: ED has great impact on surface characteristics (hardness androughness). Using expired GIC type II deal with great risk of surface deterioration when in contact with low pH level beverage

Perbandingan Penyerapan Air pada Resin Komposit Nanohybrid Sculptable dan Flowable setelah Perendaman dalam Minuman Berkarbonasi

Composite resin is a dental restorative material could be classified according to the manipulation (sculptable and flowable) and filler size (microfiller, macrofiller, hybrid, and nanohybrid). Composite resin producers develop flowable composite resin that could be used in all cavities, namely G-Aenial Universal Flowable. Composite resin had the disadvantage of water absorption could affect were matrix resin composition, filler particle size, and polymerization reaction. Indonesian society loved carbonated drinks, one of them was coca cola which had a low pH and acidic. The aim of thiese study was to determine the ratio of water absorption in nanohybrid sculptable and flowable composite resin after soaking in carbonated drinks. These study used a type of experimental laboratory research with pre-post test design, carried out by dividing into 2 sample groups namely G-Aenial sculptable (I) and G-Aenial Universal flowable (II). The data of these study was carried out the Independent T test. The mean water absorption I = 11.94 µg/  and II = 12.78 µg/  was obtained. Independent T test results obtained with p = 0.814, which means there was no significant difference. These study had the conclusion that after immersion in large carbonated drink the absorption of water in G-Aenial sculptable and G-Aenial Universal flowable was relatively similar. The amount of G-Aenial sculptable water absorption was smaller than the flowable G-Aenial Universal

Концептуальные основы структурной перестройки народного хозяйства территориальных систем различных уровней

Материалы междунар. научно-практической конференции 15-16 ноября 2001 года

THE EFFECT OF NON-DENTAL GLASS FIBER COMBINATION ON FLEXURAL STRENGTH OF PREPOLYMERIZED FIBER-REINFORCED COMPOSITE

Background: Fiber reinforced composite is a combination of composite resin and fiber. Fiber in FRC serves as a reinforcement to be resistant to fractures. One of the fibers used in FRC is dental glass fiber because it can increase mechanical strength. Dental glass fiber is very limited and expensive while glass fiber which available in the market is non dental glass. This material has mechanical properties almost same as dental e-glass fiber used in dentistry, so it can be used as an alternative material FRC. The aim of this study was to identify the effect of flexural strength of non dental glass fiber to prepolymerized fiber reinforced composites.Method: This study used true experimental design with 16 samples. The samples were divided into two groups according to prepolymerized composite resin groups without fiber and prepolymerized composite resins with the addition of non dental glass fiber. Data analysis in this study used the normality test with the Sapiro-Wilk test, levene test and independent t-test. Result: The results were statistically analyzed, the average flexural strength of prepolymerized composite resin without fiber is 36.60 MPa and prepolymerized composite resin with the addition of non dental glass fiber which is 54.26 MPa. Based on the normality test and the levene test values (p> 0.05) and independent t-test values (p <0.05) were obtained.Conclusion: The conclusion obtained that there is an effect of the addition of non dental glass fiber to the flexural strength of prepolymerized fiber reinforced composite

PERBEDAAN KONSUMSI AIR SUMUR DAN AIR SUNGAI TERHADAP KARIES PADA ANAK USIA 6-8 TAHUN

Air minum merupakan salah satu komponen yang berperan dalam penentuan derajat kesehatan masyarakat. Kandungan fluor dalam air minum dapat mencegah terjadinya karies gigi. Penelitian ini dilakukan untuk mengetahui perbedaan konsumsi air sumur dan air sungai terhadap karies pada anak usia 6-8 tahun di Desa Kacangan, Kecamatan Todanan, Kabupaten Blora.Metode penelitian ini berjenis observasional analitik dengan rancangan cross sectional yang dilakukan pada 20 anak yang mengonsumsi air sungai dan 49 anak yang mengonsumsi air sumur. Kandungan fluor dalam air di ukur dengan menggunakan spektrofotometri. Sedangkan tingkat status karies gigi di ukur dengan menggunakan indeks DMF-T. Teknik analisa data uji beda karies gigi menggunakan uji chi-square.Berdasarkan uji chi-square yang telah dilakukan maka didapatkan nilai signifikansi 0,000 (p<0,05) dapat disimpulkan bahwa terdapat perbedaan yang bermakna sehingga hipotesis dapat diterima yaitu terdapat perbedaan konsumsi air sumur dan air sungai terhadap karies gigi. Disimpulkan bahwa konsumsi air sumur dan air sungai mempunyai perbedaan terhadap terjadinya karies gigi. Anak-anak yang mengonsumsi air sungai status kariesnya lebih tinggi dibandingkan air sumur dikarenakan kandungan fluor dalam air sungai yang lebih rendah

EFFECT OF FILLER NANO TITANIUM DIOXIDE (TiO2) PARTICLES ON FLEXURAL STRENGTH OF NYLON THERMOPLASTIC DENTURE BASE

Background: Treatment of missing teeth can be done by using dentures. One of the denture base materials is thermoplastic nylon. The advantage of thermoplastic nylon are flexible and deformable. Various attempts have been made to maximize the quality of the denture, for example, by adding TiO2. TiO2 can be used as a filler. Filler is the process of adding TiO2 to the denture base. The advantages of TiO2 particles are  non-toxic, antimicrobial, and increasing the mechanical strength of denture bases.TiO2 can reduce the porosity of the denture.Method: the design study is  a post test only control group with a total of 27 samples. Flexural test was performed using the UTM GD 1100. The statistical test used by the One Way Anova test.Result: The results showed that there were no significant effect on the flexural strength of thermoplastic nylon with the addition of 1% and 5% TiO2 with the control group. The highest flexural strength was obtained in the treatment group of TiO2 1 %, which was an average of 133.3867 N/mm2 and the lowest flexural strength was obtained in the control group without the addition of TiO2, which was an average of 127.57378 N/mm2. The lowest flexural strength was found in the control group without the addition of TiO2, which was an average of 127.57378 N/mm2. Conclusion: There were  no significant effect on the flexural strength of thermoplastic nylon with 1% and 5% TiO2 added with the control group

PERBEDAAN KONSUMSI AIR SUMUR DAN AIR SUNGAI TERHADAP KARIES PADA ANAK USIA 6-8 TAHUN

Air minum merupakan salah satu komponen yang berperan dalam penentuan derajat kesehatan masyarakat. Kandungan fluor dalam air minum dapat mencegah terjadinya karies gigi. Penelitian ini dilakukan untuk mengetahui perbedaan konsumsi air sumur dan air sungai terhadap karies pada anak usia 6-8 tahun di Desa Kacangan, Kecamatan Todanan, Kabupaten Blora.Metode penelitian ini berjenis observasional analitik dengan rancangan cross sectional yang dilakukan pada 20 anak yang mengonsumsi air sungai dan 49 anak yang mengonsumsi air sumur. Kandungan fluor dalam air di ukur dengan menggunakan spektrofotometri. Sedangkan tingkat status karies gigi di ukur dengan menggunakan indeks DMF-T. Teknik analisa data uji beda karies gigi menggunakan uji chi-square.Berdasarkan uji chi-square yang telah dilakukan maka didapatkan nilai signifikansi 0,000 (p<0,05) dapat disimpulkan bahwa terdapat perbedaan yang bermakna sehingga hipotesis dapat diterima yaitu terdapat perbedaan konsumsi air sumur dan air sungai terhadap karies gigi. Disimpulkan bahwa konsumsi air sumur dan air sungai mempunyai perbedaan terhadap terjadinya karies gigi. Anak-anak yang mengonsumsi air sungai status kariesnya lebih tinggi dibandingkan air sumur dikarenakan kandungan fluor dalam air sungai yang lebih rendah

EFEKTIVITAS PEMBERIAN GEL BINAHONG (ANREDERA CORDIFOLIA) 5% TERHADAP JUMLAH SEL FIBROBLAST PADA SOKET PASCA PENCABUTAN GIGI MARMUT (CAVIA COBAYA)

Background: Binahong Leaf (Anredera Cordifolia) is known as a medicinal plant. Binahong gel contains an assortment of phytochemicals. Purpose: This study was conducted to determine the effectiveness of the Binahong gel (Anredera cordifolia) 5% application into the socket after tooth extraction of guinea pig (Cavia cobaya), and then its fibroblast cells histologically observed at days 4 and 7. Method: This research method was a quasi-experimental. The sample used were 16 guinea pigs (Cavia cobaya) males, aged 3-5 months and divided into 4 groups. Group 1 consisted of four guinea pigs were given a gel Binahong until day 4, 1 control group consisted of four guinea pigs were not given gel Binahong until day 4, 2  treatment groups were given gel Binahong until day 7 and 2 control groups were not given gel Binahong until day 7, then the guenia pigs decapitated to be made histological preparats, the aim to see and count the number of fibroblast cells. Kemudian dimasukan dalam data lalu dianalisis. The data analyzed by Kruskal Wallis test with probability p 0.05). In the second treatment group and control group 2 can be concluded there is a significant difference (p <0.05). Conclusion: From the results of this study application gel Binahong 5% for 4 days after tooth extraction does not effectively influence the number of fibroblasts, for 7 days proved effective influence fibroblast cell count after tooth extraction of guinea pig (Cavia cobaya). Keywords: Binahong leaf, socet post extraction, guinea pig (Cavia cobaya

PROGRAM FOR IMPROVING THE UNDERSTANDING OF TYPES OF DENTAL RESTORATION

Background: Dental and oral health is an important part of overall body health. Cavities are one of the most common dental and oral problems experienced by people in the world, including in Indonesia. Cavities must get treatment as soon as possible before causing unwanted things. The increasing and growing use of filling materials is in line with increasing public awareness of dental and oral health. However, this is not evenly distributed in all regions, only areas that have adequate access and technology can reach this information, so education efforts are needed for people outside the area. Health education is one of the efforts to increase knowledge, attitudes, and good practices in individuals, groups, or communities in maintaining and improving public health. The locations that are targeted in this community service are villages in the working area of the Margasari Health Center, Tegal Regency, Central Java.Method: The planned educational activities include surveying the problems encountered, counseling and discussions on the topic of introducing dental fillings in children and adults. This community service aims to increase public awareness of the importance of treating cavities and increase public understanding regarding the choice of materials used in the treatment of cavities. Result: Counseling begins by distributing questionnaires before and after the counseling. The selected counseling material is material about various additives commonly used in dentistry. The data was then entered and it was found that there was a significant difference between before and before the research was carried out, the p-value was 0.000.Conclusion: The education provided through counseling can be concluded as effective in increasing the knowledge of the people of Margasari Village