e-Journal Persatuan Dokter Gigi Indonesia (PDGI)
Not a member yet
538 research outputs found
Sort by
The Effect of Glycerin Application on The Surface of Microhybrid Composite Resin to Its Compressive Strength with Immersed in Pure Coffee Solution
No full text
Introduction: There are various restoration materials, one of which is microhybrid composite resin. An effective way to increase its compressive strength is by applying glycerin before curing. This can minimize the formation of a layer of OIL (Oxygen inhibition layer) which is formed due to polymerization that interrupted by the contact of composite resin with oxygen. Exposure with acidic solution such as pure coffee solution causing the occurrence of matrix degradation which can decrease the compressive strength of microhybrid composit. The longer its immersed in pure coffee solution, the more polymer bonds are broken and releasing monomer which result in a decrease of compressive strength.
Objective: This study aimed to reveal the effects of glycerin application on the compressive strength of microhybrid composite resins immersed in pure coffee solution.
Methods: There are 6 sample groups of composite resin namely: group SG, group S, group GK16, group K16, group GK32, and group K32 with 4 samples per group. Each sample made of microhybrid composite resin brand Filtek Z250 shaped disc with a diameter of 4 mm and thickness of 2 mm. Glycerin was applied to the surfaces of three groups before curing, while other groups were not. After treatment, all samples are compressive strength tested using Universal Testing Machine. The data were analyzed using the Two Way ANOVA followed by Post-Hoc LSD test.
Result: The groups with glycerin had higher compressive strength than those groups without glycerin application. The non-immersed groups had a higher hardness level than those groups which were immersed. The Two-Way ANOVA test confirmed that there was a statistically significant difference (p<0.05) among all groups.
Conclusion: Glycerin application can increase the compressive strength of microhybrid composite resin immersed in pure coffee solution by minimizing OIL formation on its surface.
ABSTRAK
Pendahuluan: Terdapat berbagai bahan restorasi, salah satunya yaitu resin komposit microhybrid. Cara yang efektif untuk meningkatkan kekuatan tekan resin komposit microhybrid adalah mengoleskan gliserin sebelum curing. Hal ini dapat meminimalisir pembentukan OIL (Oxygen Inhibition Layer) pada permukaan komposit yang terbentuk akibat polimerisasi terganggu oleh kontak resin komposit dengan oksigen. Kontak dengan larutan bersifat asam seperti larutan kopi murni mampu menyebabkan terjadinya degradasi matriks yang dapat menurunkan kuat tekan komposit microhybrid. Semakin lama resin komposit microhybrid direndam dalam larutan kopi murni, maka semakin banyak polimer yang terputus dan melepaskan monomernya yang berakibat penurunan kekuatan tekan.
Tujuan: Untuk mengetahui pengaruh aplikasi gliserin terhadap kekuatan tekan resin komposit microhybrid dalam perendaman larutan kopi murni.
Metode: Sampel dibagi menjadi 3 kelompok yaitu kelompok kontrol (sebelum perendaman), kelompok perlakuan (diaplikasi gliserin), kelompok perlakuan (tanpa aplikasi gliserin). Tiap sampel dibuat dari resin komposit microhybrid merk Filtek Z250 dibentuk cakram dengan diameter 4 mm dan ketebalan 2 mm. Gliserin diaplikasikan di atas permukaan resin komposit pada tiga kelompok, sedangkan kelompok lainnya tidak. Setelah perlakuan, semua kelompok dilakukan uji kekuatan tekan menggunakan Universal Testing Machine. Data dianalisa menggunakan Two Way Anova dilanjutkan dengan uji Post-Hoc LSD.
Hasil: Kekuatan tekan kelompok dengan aplikasi gliserin lebih tinggi dibandingkan tanpa gliserin. Selain itu, kelompok tanpa perendaman dalam larutan kopi murni memiliki kekuatan tekan lebih tinggi dibandingkan dengan perendaman. Hasil uji Two Way ANOVA menunjukkan adanya perbedaan signifikan (p<0,05) antar semua kelompok.
Kesimpulan: Aplikasi gliserin dapat meningkatkan kekuatan tekan resin komposit microhybrid dalam perendaman larutan kopi murni melalui minimalisir pembentukan OIL pada permukaannya
The position of the mental foramen towards the alveolar crest using digital panoramic radiographs
No full textObjectives: The rate of mandibular anesthesia failures is higher than maxilla, where the highest percentage is the inferior alveolar nerve block. One alternative action in case of failure is a mental nerve block, located in the mental foramen. Thus, knowledge of the mental foramen anatomy is required to avoid failure in anesthesia. The study is to determine the vertical and horizontal position of the mental foramen, which refers to the crest of the alveolar bone, using panoramic radiographs.
Materials and Methods: The type of research that is used is descriptive with a purposive sampling method. The object of research is panoramic radiographs of patients who are in Dentistry Radiology Installation of Dental Hospital Universitas Padjadjaran, Bandung with a total sample of 352 panoramic radiographs. This research measured the vertical and horizontal distances between the mental foramen to the alveolar bone crest between 1st premolar teeth and 2nd premolar teeth.
Results: The average value of the vertical distance mental foramen to the alveolar bone crest is 13,43 mm. The average value of the horizontal distance from mental foramen to 1st premolar teeth is 6,97 mm and the horizontal distance from mental foramen to 2nd premolar teeth is 2,80 mm.
Conclusion: Mental foramen is closer to the 2nd premolar teeth based on the horizontal position and located below the apex based on the vertical position
Distribution of dense bone island in the jaw through panoramic radiography based on gender and age
No full textObjectives: Panoramic radiographs are used as a diagnostic tool adjunctive to oral examinations, treatment plans, and evaluation of treatment outcomes. This study was aimed to determine the distribution of Dense Bone Island (DBI) in the jaws through panoramic radiography based on gender and age.
Materials and Methods: The method used for this research is descriptive-observational. The research data used is secondary data with a total of 422 panoramic radiographic data of RSKGMP Airlangga University patients.
Results: From a study of 422 secondary data found 253 (60%) patients with Dense Bone Island in the jaw, more commonly found in female, which is 162 (38.4%) in female patients and 91 (21.5%) in male patients. It was also found mostly in the age range of 17–25 years.
Conclusion: Dense Bone Island was found more in female than in male. It was also found to be more common in patients aged 17–25 years
Effects of Clinacanthus nutans and Aloe vera Extracts on bFGF Synthesis in Fibroblasts
Get PDF
Introduction: Wound healing is an important but complicated process, containing a multifaceted process. The growth factor involved in the wound healing process is basic fibroblast growth factor (bFGF). Clinacanthus nutans (C. nutans) and A. vera are traditional plants that have the ability to induce fibroblast migration. However, no study has yet compared the effects of C. nutans and A. vera on bFGF protein synthesis associated with wound healing.
Objective: The aim of this study was to evaluate the effect of extracts of C. nutans and A. vera on the fibroblast synthesis of bFGF in fibroblasts.
Method: Clinacanthus nutans leaf powder was extracted using a solution of hexane and chloroform sequentially. While the A. vera gel is taken. Fibroblasts were treated with several concentrations (10, 50, and 100 µg/mL) within 24 hours. Synthesis of bFGF protein was tested using enzyme linked immunoabsorbent assay (ELISA).
Result: The chloroform extract of C. nutans and A. vera up regulated the synthesis of bFGF. Concentration of 10 µg/mL C. nutans showed the highest bFGF protein synthesis compared to other treatment groups.
Conclusion: Chloroform extract of C. nutans and A. vera can up regulated the synthesis of bFGF in fibroblasts.
ABSTRAK
Pendahuluan: Penyembuhan luka adalah proses penting namun rumit, yang terdiri dari beberapa fase penyembuhan. Faktor pertumbuhan yang berhubungan dengan proses penyembuhan luka adalah, basic fibroblast growth factor (bFGF). Clinacanthus nutans (C. nutans) dan Aloe vera (A. vera) adalah tumbuhan tradisional yang memiliki kemampuan untuk menginduksi migrasi fibroblas. Namun, belum ada penelitian yang telah membandingkan efek C. nutans dan A. vera terhadap sintesis protein bFGF yang berhubungan dengan luka penyembuhan.
Tujuan: Tujuan dari penelitian ini adalah untuk mengetahui efek ekstrak C. nutans dan A. vera terhadap sintesis bFGF pada fibroblas.
Metode: Bubuk daun C. nutans di ektraksi menggunakan larutan heksana dan kloroform secara berurutan. Sedangkan A. vera diambil gel nya. Fibroblas diberi perlakuan dengan beberapa konsentrasi (10, 50, dan 100 µg/mL) dalam waktu 24 jam. Sintesis protein bFGF diuji menggunakan enzym linked immunoabsorbent assay (ELISA).
Hasil: Ekstrak kloroform C. nutans dan A. vera dapat meningkatkan sintesis protein bFGF lebih tinggi dibandingkan dengan kontrol negatif pada uji ELISA. C. nutans konsentrasi 10 µg/mL menunjukkan sintesis protein bFGF tertinggi dibandingkan dengan kelompok perlakuan lain.
Kesimpulan: Ekstrak kloroform C. nutans dan A. vera dapat meningkatkan sintesis protein bFGF pada fibroblas
The Effect of Immersion in Soda Containing Sucrose and Aspartame on The Compressive Strength of Bulk-fill Composite Resin
Get PDF
Introduction: Soda is a popular drink and contains sucrose as natural sweetener, and aspartame as artificial sweetener, both of which have acidic properties that affect the restorative material. Bulk-fill composite resin is a type of composite resin that can be polymerized with a thickness of 4-5 mm as well as better physical and mechanical properties for chewing forces.
Objective: To determine the effect of immersion in soda containing sucrose and aspartame on the compressive strength of bulk-fill composite resins.
Methods: This study used 30 samples of bulk-fill composite resin in the form of a cylinder with a diameter of 4 mm and a height of 6 mm, divided into 3 groups. Group A was immersed in artificial saliva for 24 hours. Group B was immersed in soda containing sucrose for 6 hours and in artificial saliva for 18 hours. Group C was immersed in soda containing aspartame for 6 hours and in artificial saliva for 18 hours. The samples were immersed for 6 days in an incubator at 37°C. The compressive strength was measured and calculated using the Universal Testing Machine (UTM).
Results: The result of compressive strength on artificial salive immersion was 318,65 ± 30,23, on soda containing sucrose immersion was 312,59 ± 33,10, on soda containing aspartame immersion was 316,80 ± 23,49. One-Way ANOVA test showed that the compressive strength value of bulk-fill composite resin was not significantly different among groups (p > 0.05).
Conclusion: The effect of immersion in soda containing sucrose and aspartame showed no difference on the compressive strength of bulk-fill composite resins.
ABSTRAK
Pendahuluan: Minuman soda merupakan minuman yang populer dan mengandung pemanis alami yaitu sukrosa dan pemanis buatan yaitu aspartam, keduanya memiliki sifat asam yang berpengaruh terhadap bahan restorasi. Resin komposit bulk-fill merupakan jenis resin komposit yang dapat dipolimerisasi dengan ketebalan 4-5 mm serta memiliki sifat fisik dan mekanik yang lebih baik untuk kekuatan kunyah.
Tujuan: Untuk mengetahui pengaruh perendaman minuman soda mengandung sukrosa dan aspartam terhadap kekuatan tekan resin komposit bulk-fill.
Metode: Penelitian ini menggunakan sampel resin komposit bulk-fill berbentuk silinder dengan diameter 4 mm dan tinggi 6 mm sebanyak 30 sampel, sampel dibagi menjadi 3 kelompok. Kelompok A yang direndam dalam saliva buatan selama 24 jam, kelompok B yang direndam dalam soda mengandung sukrosa selama 6 jam dan 18 jam dalam saliva buatan, dan kelompok C yang direndam dalam soda mengandung aspartam 6 jam dan 18 jam dalam saliva buatan. Perendaman sampel dilakukan selama 6 hari dalam inkubator 37°C. Kekuatan tekan diuji dan dihitung menggunakan Universal Testing Machine (UTM).
Hasil: Hasil kekuatan tekan pada saliva buatan 318,65 ± 30,23, pada soda mengandung sukrosa 312,59 ± 33,10, pada soda mengandung aspartam 316,80 ± 23,49. Uji dengan One-Way ANOVA menunjukkan nilai compressive strength resin komposit bulk-fill tidak berbeda signifikan antar tiap kelompok (p > 0,05).
Kesimpulan: Tidak terdapat perbedaan pengaruh perendaman minuman soda mengandung sukrosa dan aspartam terhadap kekuatan tekan resin komposit bulk-fill
Mandibular radiomorphometry analysis of children with HIV and healthy individuals on digital panoramic radiographs by age and sex
No full textObjectives: The chronic systemic inflammatory process of HIV Human Immunodeficiency Virus) infection in children leads B cell activity to accelerate the osteoclastogenesis process, which results in bone alterations. Long-term usage of highly active antiretroviral medication results in decreased bone quality in HIV patients (HAART). Digital panoramic images are useful for radiomorphometric analysis of the mandibular macrostructure. Mandibular bone is a bone quality analysis that is often performed.
Materials and Methods: This study comprised 86 digital panoramic radiographs of pediatric HIV patients and healthy persons. Secondary data in the form of digitized conventional panoramic radiographs of 43 pediatric HIV patients and 43 healthy individuals without clinical symptoms of HIV disease were utilized as a reference.
Results: Mandibular morphometry values by sex in children with HIV and healthy adults showed (MCI) p-value 0.009, (GMI) p-value 0.934, (GI) p-value 0.584, (Go-Co) p-value 0.090, and (Co-M) p-value 0.919. Meanwhile, the results of the study with mandibular morphometric values ​​between children with HIV and healthy individuals index based on age revealed (MCI) p-value 0.490, (GMI) p-value 0.657, (GI) p-value 0.080, (Go-Co) p-value 0.147, (Co-M) p-value 0.158
Conclusion: Mandibular morphology differed between HIV-infected children and healthy persons as measured by digital panoramic radiographs, with changes in mandibular resorption thickness, mandibular bone width, and mandibular bone thickness. Furthermore, there were no differences in values, height, and length of the mandible, as well as variances based on age and sex
Imaging analysis 3D cone-beam computed tomography of a suspected infected radicular cyst in the mandible
No full textObjectives: This article is aimed to report the use of cone-beam computed tomography (CBCT) imaging analysis on a radiolucent lesion case.
Case Report: A 24-year-old female patient was referred to dentomaxillofacial radiology installation, at Universitas Padjadjaran Dental Hospital for a CBCT examination of a lower jaw lesion. The CBCT result demonstrated a large radiolucent lesion at the periapical of tooth 37 with a mostly diffuse border that extended posteriorly to the ramus. There was a cortical thinning on the lingual side alveolar bone. Density analysis revealed an average density of –22,9 grayscale.
Conclusion: CBCT 3D could analyze lesions from qualitative and quantitative approaches. Based on these approaches, the lesion of this case led to a suspect of infected radicular cyst
An uncovered extensive fusion of two separated periapical lesions in CBCT imaging: the importance of multiplanar radiographic appraisal
No full textObjectives: This report is aimed to present a case of an uncovered fusion of two seemingly separated periapical rarefying osteitis lesions on two adjacent teeth through Cone Beam Computed Tomography (CBCT) imaging and to describe the significance of a comprehensive multiplanar appraisal in interpreting CBCT radiographs.
Case Report: An 18-year-old female patient came to Universitas Airlangga Dental Hospital for a CBCT examination of her right central maxillary incisor (tooth 11) as referred by her dentist. Based on the clinical report provided, the patient had a slight palpable swelling of the labial gingival anterior maxilla with sign of crepitus. Caries lesions were found on teeth 11 and 12 in which the vitality tests showed negative responses. Thus, it was provisionally suspected as a periapical inflammatory lesion. CBCT was done and the 3D-reconstructed images of the bone showed there were two neighboring radiolucent ovoid lesions attached on one-third apical of teeth 11 and 12, separated by a firm-apparent cortex. It was later discovered that the two lesions were actually fused as one elongated and extensive lesion through the multiplanar appraisal of three orthogonal views provided in CBCT application.
Conclusion: CBCT 3D-reconstructed and panoramic reformatted images should be used with caution, either for linear measurement or diagnostic purposes, as they should only be used to illustrate the diagnosis and/or provide a better understanding of the problem to the patients and their treatment plans. A comprehensive multiplanar appraisal is required to provide a diagnostically complete interpretation
Lateral cephalometric values of FKG ULM students Banjar ethnic according to Steiner analysis
No full textObjectives: This study aimed to determine the value of dentocraniofacial measurements of FKG ULM students from Banjar ethnic in terms of lateral cephalometric radiography using Steiner analysis.
Materials and Methods: Cephalometric measurements were performed using the Steiner analysis method on skeletal landmarks: SNA, SNB and ANB; dental: UI-NA, LI-NB, and interincisal angle. Data analysis was performed by descriptive statistical method.
Results: The average skeletal and dental value of the FKG ULM students from Banjar ethnic at the SNA angle is 86.31°± 4.49°, the SNB is 81.33°± 4.39°, the ANB is 4.98°± 2.05°, the UI-NA angle is 19.69°± 8.22°, the LI-NB angle is 28.65°± 6.76°, the UI-NA distance is 4.45± 2.86 mm, the LI-NB distance is 8.58± 3.19 mm and the interincisal angle is 126.43°± 10.51°.
Conclusion: The dental and skeletal averages showed that the FKG ULM students from Banjar ethnic had more prognathic maxillary and mandibular positions and more protrusive maxillary and mandibular incisor positions than the normal standard of Steiner's analysis
