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Dental Journal (Majalah Kedokteran Gigi)

MKG
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Published by Universitas Airlangga

ISSN : 19783728 EISSN : 24429740 DOI : -

Core Subject : Health,

Dentistry

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 964 Documents

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Toxicity testing of chitosan from tiger prawn shell waste on cell culture Maretaningtias Dwi Ariani; Anita Yuliati; Tokok Adiarto
Dental Journal (Majalah Kedokteran Gigi) Vol. 42 No. 1 (2009): March 2009
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: A biomaterial used in oral cavity should not become toxic, irritant, carcinogenic, and allergenic. Chitosan represents a new biomaterial in dentistry. Purpose: To examine the toxicity of chitosan from tiger prawn shell waste on cell culture with MTT assay. Methods: Chitosan with concentration of 0.25%, 0.5%, 0.75% and 1% was used in this experiment. Each sample was immersed on eppendorf microtubes containing media culture. After 24 hours, the immersion of media culture was used to examine the toxicity effects on BHK-21 cell based on MTT assay method. The density of optic formazan indicates the number of living cells. All data were then statistically analyzed by one-way Anava. Results: The number of living cells in chitosan from tiger prawn shell waste was 93.16%; 85.07%; 78.48%; 75.66%. Thus, there was no significant difference among groups. Conclusion: Chitosan with 0.25%, 0.5%, 0.75% and 1% concentrations from tiger prawn shell waste were not toxic for BHK-21 cell culture when using parameter CD50.

Students’ evaluation of preclinical simulation for all ceramic preparation (In Faculty of Dentistry Universiti Kebangsaan Malaysia) Natasya Ahmad Tarib; Marlynda Ahmad
Dental Journal (Majalah Kedokteran Gigi) Vol. 41 No. 2 (2008): June 2008
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

The purpose of the study is to evaluate all ceramic crown (ACC) preparations those were made by dental undergraduate students during the preclinical sessions. 104 plastic teeth were prepared by 4th year dental undergraduates during the preclinical session for ACC crown examined. The teeth were placed on the frasaco arches and were mounted in the frasaco head. The preparations were examined for the tapering, presence of undercuts, incisal and cingulum reductions as well as preparation of shoulder margin. Preparations were examined using hand instruments and visual. The sample size was 92 plastic teeth. Most of the preparations were acceptable with acceptable placement and types of margins, adequate axial and incisal reductions and acceptable tapered of the axial walls. On the other hand, most of the teeth showed absence of cingulum wall. Most of the crowns prepared by the students were acceptable. It showed that they understood the principles of crown preparation. Cingulum wall preparation has to be given greater emphasis as it is important in the retention and resistance of the restoration.

Sitotoksisitas resin akrilik hybrid setelah penambahan glass fiber dengan metode berbeda (Cytotoxicity of the hybrid acrylic resin after glass fiber reinforcement with difference method) Intan Nirwana; R. Helal Soekartono
Dental Journal (Majalah Kedokteran Gigi) Vol. 38 No. 2 (2005): June 2005
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Glass fiber reinforcement of the hybrid acrylic resin with difference method can enhance residual monomer content of the material; it can cause cytotoxic effect on fibroblast cells. The purpose of this study was to know the cytotoxicity of hybrid acrylic resins after glass fiber reinforcement with difference method on the cultured fibroblasts. The squared specimens of 10 mm in length, 10 mm in width and 1.5 mm in thickness were cured for 20 minutes at 100° C. The fibroblast cells were grown in Eagle's Minimum Essential Medium to be 2 × 105 cells/ml, then the cells were added to the samples in the plates and incubated at 37° C. After 48 hours, the cytotoxic effect was determined by direct cell number count using microscope and a hemocytometer. The statistical analyses using one way ANOVA and LSD test showed that there were significant difference in cell viability (p < 0.05) among the groups. The means percentage of cell viability were 90.00%, 99.,11%, 98.66%, it could be concluded that glass fiber reinforcement into hybrid acrylic resin with either first method or second method was not toxic.

Side effects of mercury in dental amalgam Titiek Berniyanti; Ninuk Hariyani
Dental Journal (Majalah Kedokteran Gigi) Vol. 41 No. 1 (2008): March 2008
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Dental amalgam is an alloy composed of mixture of approximately equal parts of elemental liquid mercury and an alloy powder. The popularity of amalgam arises from excellent long term performance, ease of use and low cost. Despite the popularity of dental amalgam as restorative material, there have been concerns regarding the potential adverse health and environmental effects arising from exposure to mercury in amalgam. They have long been believed to be of little significance as contributors to the overall body burden of mercury, because the elemental form of mercury is rapidly consumed in the setting reaction of the restoration. In 1997, 80% of dentist in Indonesia still using amalgam as an alternative material, and 60% of them treat the rest of unused amalgam carelessly. In recent years, the possible environmental and health impact caused by certain routines in dental practice has attracted attention among regulators. As part of point source reduction strategies, the discharge of mercury/amalgam-contaminated wastes has been regulated in a number of countries, even though it has been documented that by adopting appropriate mercury hygiene measures, the impact of amalgam use in dentistry is minimal. The purpose of this paper is to examine on studies that relate mercury levels in human to the presence of dental amalgams. It is concluded that even though mercury used in filling is hazardous, if normal occupational recommendations for proper mercury hygiene routines and source of reduction strategies are followed, no occupational health risk can be assumed.

Peranan sorbitol dalam mempertahankan kestabilan pH saliva pada proses pencegahan karies (The role of sorbitol in maintaining saliva’s pH to prevent caries process) Diana Soesilo; Rinna Erlyawati Santoso; Indeswati Diyatri
Dental Journal (Majalah Kedokteran Gigi) Vol. 38 No. 1 (2005): March 2005
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

People in Indonesia often consume food containing sucrose. If the sucrose consumed is in a large amount, it will decrease saliva’s pH and soon teeth destruction will happen. To avoid it, it is necessary to change sucrose consumption habit into another kind of sugar, namely sorbitol. Sorbitol is preferred to use, because it is cheaper and easier to get. Sorbitol is made from cassava, which is plentifully grown in Indonesia. Sorbitol is not good media for bacteria to grow. Because sorbitol has a diol, so it’s difficult to catalyst by glucosyltransferase enzyme, which is produced by bacteria Streptococcus mutans. The conclusion is that sorbitol is difficult to be fermented by Streptococcus mutans so it will not decrease saliva’s pH.

Jaw locking after maxillofacial trauma David B. Kamadjaja; R. Soesanto
Dental Journal (Majalah Kedokteran Gigi) Vol. 40 No. 3 (2007): September 2007
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

The purpose of this report is to present two cases of jaw locking with two different etiologies. In case #1, jaw locking occured 5.5 months after a surgical reduction and internal fixation on the fractured maxilla and mandible. Some plain radiographic x-ray were made but failed to give adequate information in establishing the cause of trismus. The three dimensional computed tomography (3D-CT) was finally made and able to help guide the pre-operative diagnosis and treatment. Two-steps gap arthroplasty were done comprising a gap arthroplasty leading to acceptable outcome. An adult patient in case #2 with a history of trauma at his childhood and bird-like face apprearance clinically, was unable to open the mouth since the time of accident. The patient was diagnosed with bilateral ankylosis of temporomandibular joints. One side (right) gap arthroplasty was done and resulted in normal mouth opening.

VEGF expression and new blood vessel after dental X-ray irradiation on fractured tooth extraction wound Niluh Ringga Woroprobosari; Jenny Sunariani; Eha Renwi Astuti
Dental Journal (Majalah Kedokteran Gigi) Vol. 48 No. 3 (2015): September 2015
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background:Dental X-ray has an important role in dentistry. Complication case such as tooth fracture extraction requires this examination to determine the appropriate treatment measures. Dental X-ray can also cause a negative impact to the body at cellular and even molecular level. Purpose: The aim of this study was to evaluate the decrease of vascular endothelial growth factor (VEGF) expression and new blood vessels number caused by dental X-ray irradiation on fractured tooth extraction wound on day 3 and 7 after extraction. Method: We used 30 wistar rats which was randomly divided into 6 groups. Each rat’s central insisive of left mandible was fractured and then extracted after or without X-ray irradiation. Group KA and KB were control groups without irradiation. Group P1 A and P1 B were treatment groups with 0.08 mSv irradiation dose. Group P2 A and P2 B were treatment groups with 0.16 mSv irradiation dose. The subject from group KA, P1 A, and P2 A were sacrficed and sockets were collected at day 3. The subject from group KB, P1 B, and P2 B were sacrficed and sockets were collected at day 7. Socket were processed and painted with hematoxylin eosin and immunohistochemistry, then observed with a microscope. Data processing was performed with SPSS 16 through one way anova test and post hoc Tukey test HS. Result: The lowest means expression of VEGF and the number of new blood vessels on the day 3 was found in P2 A group, and the highest found in the KA group. The lowest means expression of VEGF and the number of new blood vessels on the day 7 was found in P2 B group, and the highest found in the KB group. Conclusion: Dental X-ray irradiation dose of 0.08 mSv and 0.16 mSv causes decrease of VEGF expression and new blood vessels in the wound fractured tooth extraction in day 3 and day 7 post-extraction.

Dimensional change of acrylic resin plate after the reinforcement of glass fibre Dwiyanti Feriana Ratwita; Rinda Mahalistiyani
Dental Journal (Majalah Kedokteran Gigi) Vol. 40 No. 2 (2007): June 2007
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

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.

The difference of saline and sterile water for tetracycline hydrochloride solvents in cementum demineralization Shinta Ferronika; Ahmad Syaify; Dahlia Herawati
Dental Journal (Majalah Kedokteran Gigi) Vol. 49 No. 1 (2016): March 2016
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: The root cementum demineralization is an important step in regenerative periodontal therapy to smear layer removal on the root surface. Smear layer on the root surface becomes a barrier of the new attachment between periodontal tissues with the root surface. The use of tetracycline capsules as root surface demineralizing agent cannot be applied directly on the root surface and solvents such as saline or sterile water are needed. Purpose: The aim of this study was to determine differences between sterile water and saline solvent for tetracycline HCl (tetra HCl) as a cementum demineralization. Method: In this study the specimens were divided into three groups: a control, tetra HCl dissolved in saline, and tetra HCl dissolved in sterile water. Application using burnishing method for 3 minutes. Samples were dehydrated with ethanol series of 30% to 100%. Results of the root demineralization observed by scanning electron microscopy (SEM). Statistical analysis was performed using the Kruskal-Wallis followed by a Mann-Whitney nonparametric test. Result: Upon statistical analysis showed that the sterile water as a solvent of tetra HCl is more effective in smear layer removal and collagen structure exposure in the cementum. Conclusion: Tetra HCl dissolved in sterile water was found to be the best root cementum demineralization agent.

The effect of Hegu acupoint stimulation in dental acupuncture analgesia Fransiskus Andrianto; Jenny Sunariani; Theresia Indah Budhy S
Dental Journal (Majalah Kedokteran Gigi) Vol. 40 No. 1 (2007): March 2007
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

In daily life, dental treatments are often related with oral pain sensation which needs anesthesia procedures. Sometimes local anesthetics can not be used because patients have hypersensitive reaction or systemic diseases which may lead to complications. Stimulating acupoint, such as Hegu activates hypothalamus and pituitary gland to release endogenous opioid peptide substances that reduce pain sensitivity. The aim of the study was to determine Hegu acupoint stimulation effect on the pain sensitivity reduction in maxillary central incisor gingiva. The laboratory experimental research was conducted on 12 healthy male Wistar rats (3 months old, weights 150–200 grams). All rat samples received the same treatments and adapted within 1 month. The research was done in pre and post test control group design. 40-Volt electro-stimulation was done once on the maxillary central incisor gingiva prior to the bilateral Hegu acupoint stimulation, then followed by 3 times electro-stimulation with 3 minutes intervals. The pain scores were obtained based on the samples’ contraction in each electro-stimulation. The responses were categorized into 5 pain scores and statistically analyzed using Wilcoxon Test. The results showed that Hegu acupoint stimulation lowered the pain scores significantly (p < 0.05). Hegu acupoint stimulation could reduce the pain sensitivity in maxillary central incisor gingiva. Therefore, the use of acupuncture analgesia in dental pain management can be considered in the future.

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Home Page

OAI Link

Editorial Team

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Contact Name Saka Winias

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Abstract

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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