cover
Contact Name
Saka Winias
Contact Email
saka.winias@gmail.com
Phone
-
Journal Mail Official
dental_journal@yahoo.com
Editorial Address
-
Location
Kota surabaya,
Jawa timur
INDONESIA
Dental Journal (Majalah Kedokteran Gigi)
Published by Universitas Airlangga
ISSN : 19783728     EISSN : 24429740     DOI : -
Core Subject : Health,
The Dental Journal (Majalah Kedokteran Gigi) (e-ISSN:2442-9740; p-ISSN:1978-3728) is published by the Faculty of Dental Medicine, Universitas Airlangga. Its diciplinary focus is dental science and dental hygiene. The Dental Journal (Majalah Kedokteran Gigi) is published in English on a quarterly basis with each 50-60 page edition containing between nine and eleven scientific articles on research, study literature and case studies. Contributors to the Dental Journal (Majalah Kedokteran Gigi) included: dental researchers, dental practitioners, lecturers, and students drawn from Indonesia and a wide range of other countries.
Arjuna Subject : -
Articles 10 Documents
Search results for , issue " Vol 40, No 2 (2007): (June 2007)" : 10 Documents clear
Study of chemical bond strength of methyl methacrylate (MMA) based bonding agent on type I dentin collagen at various humidity Soetojo, Adioro
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p89-93

Abstract

One of the basic agents used in dentin bonding solution is methyl methacrylate (MMA). This bonding agent is widely used in dentistry. It have been proved that the adhesion between dentin bonding agent and collagen fibril is chemically bond; though the chemical bonding contribution is smaller than physical mechanical bond. The purpose of the research was to examined the chemical bonding strength of MMA based dentin bonding on type I dentin collagen at various humidity. Samples of treatment group were put into desiccator with 60%, 70%, 80%, and 90% humidity, while for control groups at room humidity (65%). Chemical bond of pure MMA and MMA mixed with collagen were measured by FTIR. The lower the value of MMA carbonyl, the higher absorbance band speak of chemical bond strength between MMA and collagen. Data was statistically analyzed with One-Way ANOVA at 95% confidence level continued with Tukey-HSD test. The result showed that the highest chemical bond strength was at 65% humidity (p ≤ 0.05). In conclusion, many esther carbonyl MMA molecules reacted with amino collagen at 65% humidity. This can be shown by the lowest peaks value of the MMA carbonyl absorbance at FTIR.
Thinking pattern of first grade students towards edentulous replacement Jubhari, Eri H.
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p65-69

Abstract

Many people ignore their oral hygiene and do not use denture after extraction. This may caused by their thinking pattern. Thinking pattern indicates the degree of comprehension to solve a problem. This research aims to find out the thinking pattern of first year students towards edentulous replacement. The questionnaire was filled in by students. The oral cavity state of students who have edentulous was inspected. The study finds that only 3 men and 27 women had edentulous, all of them did not use denture. However, more than 96% of the edentulous and not-edentulous groups said that edentulous need denture, due to aesthetic factor. The reasons for not using denture are, for example, not enough time, not disturbed by the absence of denture, and its cost. It can be concluded that the 2005 batch students of Faculty of Dentistry (FKG) UNHAS had shown a good understanding about edentulous replacement. Their views on the profits and detriments using denture are the main reasons to determine whether they will use denture.
The effect of voltage and time of exposure on surface hardness of resin modified glass ionomer cement Agustantina, Titien Hary
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p94-97

Abstract

Light intensity can affect the polymerization of resin-based material therefore it will also affect surface hardness. To compensate reduction of light intensity becaused of the input of low voltage (200 and 210 volt), the exposure time was prolonged to be 40 and 60 seconds. The purpose of this study was to know the effect of voltage and time of exposure of resin modified glass ionomer cement on surface hardness. This study was completed with seventy two samples of resin modified glass ionomer cement 5 mm in diameter and 2 mm in height, exposed by visible light curing for 20, 40, and 60 seconds with voltage input 220, 210 and 200 volt. Micro vickers hardness tester was used to test surface hardness on the upper surface of sample. Two-way ANOVA test and Least Significant Difference (LSD) were used in data analysis with 5% level of significance. The result showed that lower input (210 and 210 volt) would decrease surface hardness of resin modified glass ionomer cement, longer exposure time (40 and 60 seconds) would increase the surface hardness of resin modified glass ionomer cement. The conclusion is the prolong of exposure time from 20 seconds to 40 and 60 seconds in all voltage input could increase surface hardness of resin modified glass ionomer cement.
The response of periodontal ligament collagen fibres and the thickness of inserting periodontal ligament fibre bundles at cementum pressure sites of fixed orthodontic appliances Prameswari, Noengki
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p70-75

Abstract

Previous research has indicated that there were several reactions in cellular activity and periodontal ligament collagen fibre as a response after orthodontic force application. Cementum has function to give attachment to collagen fibres of the periodontal ligament, maintaining the integrity of the root, helping to maintain the tooth in its functional position in the mouth, and being involved in tooth repair and regeneration so in the orthodontic tooth movement can induce changes in the cementum. The aim of this research is to investigate that fixed orthodontic appliance can change the amount of periodontal ligament collagen fibre and the thickness of inserting periodontal ligament fibre bundles at pressure site of cementum. This experimental study was held in laboratory with post test only control group design. Twenty two (22) premolar sample from 11 patient were divided into 2 groups. K group as control group (without treatment) and P group as treatment group (with using fixed orthodontic appliance). The amount of periodontal ligament collagen fibre and thickness of inserting periodontal ligament fibre bundles was examined by light microscopy and measured by image tool program. In the summary, there are increasing amount of periodontal ligament collagen fibre and the thickness of inserting periodontal ligament fibre bundles at cementum pressure sites as a normal response to remodeling and regenerating to orthodontic appliance and have function for strengthen adhering tooth cementum to the periodontal ligament.
Pin-retain for restoration of widely tooth damaged Widjiastuti, Ira
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p98-100

Abstract

Widely damaged tooth involves enamel as well as dentin could be due to caries or other causes, resulted the preparation of retention could not be fulfilled so that additional pin is used as retention. Pin is made of titanium and used as retention for restoration with the aim to unite restorative material in tooth cavity by filling the hole that is prepared in the dentin. The number of pins that are needed is according to the width of the lost tooth tissue. Restoration with pin functions as retention has conservative advantage to the tooth structure, increases retention, resistance, period of treatment is short, and the cost is cheaper.
Nanotechnology in dentistry Djamil, Melanie Sadono
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p76-80

Abstract

Technology has continuously improved along with the complexity of devices. Nowadays, it is widely accepted that micro-technology, which is defined as a further reduction in the size of interconnections and components, is achieved by a conventional “top-down” method. We have now moved to a new concept and approach for fabrication from small to bigger building-block elements, which is called nanotechnology. Nanotechnology is the fabrication technology of tiny parts that is achieved by a “bottom-up” method. Nanotechnology has been developed in many areas of life sciences, such as in dentistry. This presentation provides some examples that illustrate the progress in technological growth, especially in the nanoscale. In the developments of nanotechnology, we are also concerned in many ways about its ethics and the laws of physics. The expansion in nanotechnology shows that much multidisciplinary research is being done in the nanoscale area. In dentistry, one of the examples is research in dental materials such as nanoleakage types in the use of various adhesives with resin composition. Nanodiagnostics are nanotechnology in applied molecular diagnostics. All these fields have applications in diagnostics and in point-of-care hand-held devices.
Effect of pressure and polishing technique on surface roughness of cold cured acrylic resin Goenharto, Sianiwati
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p81-84

Abstract

The smoothness of acrylic surface plays an important role in producing removable orthodontic appliances. Int this study, we examine the effect of pressure and polishing technique on surface roughness of cold cured acrylic resin. Forty eight samples were prepared and classified into two groups: acrylic resin polymerization with and without pressure. Each group was classified into four subgroups: being polished with abrasive stone, bur for acrylic, silicone polisher and without being polished as control group. Surface roughness was measured using surface roughness tester. The surface roughness of polymerized acrylic with and without pressure and polished with different technique was analyzed using One-Way ANOVA, continued by Dunnet test. T-test was done to know whether there was the effect of pressure on surface roughness after being polished using certain technique. The result showed that pressure and polishing technique affected surface roughness significantly (p = 0.001). On the group of polymerization with pressure, surface roughness resulted from polishing with bur of acrylic showed significant difference with silicone polisher, whereas on the group without pressure, polishing with bur of acrylic showed significant difference with abrasive stone. Of the three polishing techniques, there was significant difference of surface roughness of cold cured acrylic resin (t = 0.002). It is concluded that pressure and polishing technique affected the surface roughness of cold cured acrylic resin. Polishing technique using bur of acrylic, followed by abrasive paper, rotating felt cone and soft brush showed less surface roughness on the group of polymerization with or without pressure.
p53-protein over-expression and gene mutational of oral carcinoma in-situ Syafriadi, Mei; Saku, Takashi
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p55-60

Abstract

We had been reported histological types of oral carcinoma in-situ (oral CIS), such as basaloid, verrucous, and acanthothic/ atrophic types. We considered that they have different histological appearance influenced by molecular behavior. To understand the molecular behavior of them we examined p53 exon 4–8 gene mutation and their protein expression. Using 35 cases formalin-fixed paraffin sections of oral CIS and 10 cases of mild and moderate squamous epithelial displasia (SED) as a control were subjected to p53 immunohistochemistry. In the next step all cases were subjected to p53 gene mutations analysis by laser capturing microdissection and direct sequencing of PCR product for exon 4–8. Showed that p53-protein over-expression were found in basal layer of SED and the p53 protein over-expression were confined in the whole layer of CIS-basaloid type, basal and parabasal layers of CIS-verrucous type, and sporadically in the basal layer of CIS-acanthothic type. Mutational analysis for p53 gene showed 43% of total cases of CIS had p53 gene mutation therefore CIS-basaloid type had mutations more frequently than the other types and mutation in exon 8 more dominant than other exons, which had some common mutation at codons 196, 248, 282, 291, and 306, while no particular mutations were found in control (SED).Our criteria to diagnose several types of oral carcinoma in-situ by p53 protein expression and mutational analysis could be used to understand molecular behavior of CIS.
Lipopolysaccharide (LPS) introduction during growth and development period of rat’s tooth toward the occurrence of enamel hypoplasia Indahyani, Didin Erma; Santoso, Al-Supartinah; Utoro, Totok; Soesatyo, Marsetyawan HNE
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p85-88

Abstract

The aim of this study is to know the effect of lipopoly saccharide (LPS) induction during growth and development period specifically the occurrence of hypoplasia on tooth enamel. 5 day old male wistar rats divided into two groups. Group 1 (control) under went no treatment. Group 2 (treatment) under went LPS induction every 24 hour for 8 days on buccal fold right maxillary first molar. After 21 days old the rats were sacrificed and the tooth was resected. Hypoplasia Hypo calcification Index (HHI) was used to determine the degree of hypoplasia by clinical examination. Radiograph of maxilla was also taken to analyze the apacities of enamel by using COREL DRAW version 11. The result showed that group under went LPS induction hypoplasia occurred on its molar tooth and more radiolucent than control groups. The conclusion is LPS induction during growth and development period of rats tooth causing enamel hypoplasia.
Dimensional change of acrylic resin plate after the reinforcement of glass fibre Ratwita, Dwiyanti Feriana; Mahalistiyani, Rinda
Dental Journal (Majalah Kedokteran Gigi) Vol 40, No 2 (2007): (June 2007)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v40.i2.p61-64

Abstract

The effect of fibre reinforcement of polymethyl methacrylate was investigated. Glass fibres have been studied as strengthening material added to polymethyl methacrylate. The purpose of this study was to evaluate dimensional change of acrylic resin plate after glass fibre reinforcement. As a research subject is an acrylic resin plate of 65 × 10 × 2.5 mm with the number of 32 samples were distributed randomly in 4 experimental groups. Each group consisted of 8 samples and control groups. Group 1: acrylic resin plate and 1 sheet glass fibre; group 2: acrylic resin plate and 2 sheet glass fibre; group 3: acrylic resin plate and 3 sheet glass fibre. Control group which was not given treatment. Dimensional change was measured by profile projector. The data was analyzed by One-Way ANOVA and LSD test showed that there was significant difference in dimensional change (p < 0.005). The conclusion suggested that dimensional change of the acrylic resin plates after glass fibre reinforcement minimally done 1 sheet glass fibre.

Page 1 of 1 | Total Record : 10


Filter by Year

2007 2007


Filter By Issues
All Issue Vol 52, No 2 (2019): (June 2019): Article in Press Vol 52, No 1 (2019): (March 2019) Vol 52, No 1 (2019): (March 2019) Vol 51, No 4 (2018): (December 2018) Vol 51, No 4 (2018): (December 2018) Article in press Vol 51, No 4 (2018): (December 2018) Vol 51, No 3 (2018): (September 2018) Vol 51, No 2 (2018): (June 2018) Vol 51, No 1 (2018): (March 2018) Vol 50, No 4 (2017): (December 2017) Vol 50, No 3 (2017): (September 2017) Vol 50, No 2 (2017): (June 2017) Vol 50, No 1 (2017): (March 2017) Vol 49, No 4 (2016): (December 2016) Vol 49, No 3 (2016): (September 2016) Vol 49, No 2 (2016): (June 2016) Vol 49, No 1 (2016): (March 2016) Vol 48, No 4 (2015): (December 2015) Vol 48, No 3 (2015): (September 2015) Vol 48, No 2 (2015): (June 2015) Vol 48, No 1 (2015): (March 2015) Vol 47, No 4 (2014): (December 2014) Vol 47, No 3 (2014): (September 2014) Vol 47, No 2 (2014): (June 2014) Vol 47, No 1 (2014): (March 2014) Vol 46, No 4 (2013): (December 2013) Vol 46, No 3 (2013): (September 2013) Vol 46, No 2 (2013): (June 2013) Vol 46, No 1 (2013): (March 2013) Vol 45, No 4 (2012): (December 2012) Vol 45, No 3 (2012): (September 2012) Vol 45, No 2 (2012): (June 2012) Vol 45, No 1 (2012): (March 2012) Vol 44, No 4 (2011): (December 2011) Vol 44, No 3 (2011): (September 2011) Vol 44, No 2 (2011): (June 2011) Vol 44, No 1 (2011): (March 2011) Vol 43, No 4 (2010): (December 2010) Vol 43, No 3 (2010): (September 2010) Vol 43, No 2 (2010): (June 2010) Vol 43, No 1 (2010): (March 2010) Vol 42, No 4 (2009): (December 2009) Vol 42, No 3 (2009): (September 2009) Vol 42, No 2 (2009): (June 2009) Vol 42, No 1 (2009): (March 2009) Vol 41, No 4 (2008): (December 2008) Vol 41, No 3 (2008): (September 2008) Vol 41, No 2 (2008): (June 2008) Vol 41, No 1 (2008): (March 2008) Vol 40, No 4 (2007): (December 2007) Vol 40, No 3 (2007): (September 2007) Vol 40, No 2 (2007): (June 2007) Vol 40, No 1 (2007): (March 2007) Vol 39, No 4 (2006): (December 2006) Vol 39, No 3 (2006): (September 2006) Vol 39, No 2 (2006): (June 2006) Vol 39, No 1 (2006): (March 2006) Vol 38, No 4 (2005): (December 2005) Vol 38, No 3 (2005): (September 2005) Vol 38, No 2 (2005): (June 2005) Vol 38, No 1 (2005): (March 2005) More Issue