Niluh Ringga Woroprobosari, Niluh Ringga
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EFEK STOKASTIK RADIASI SINAR-X DENTAL PADA IBU HAMIL DAN JANIN Woroprobosari, Niluh Ringga
ODONTO Dental Journal Vol 3, No 1 (2016): Juli 2016
Publisher : Fakultas Kedokteran Gigi

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Abstract

Background: Dental radiographic examination is one of the most frequent radiological examinations carried out. X-rays in dental radiography is a short­wave electromagnetic rays that cause ionization reaction to any biological material in its path. The purpose of this article is to give an overview of stochastic effects in general as well as to pregnant women and fetuses in particular.Discussion: Ionizing radiation, such as X-ray radiation, is potentially teratogenic. Safe dose has not been well defined, although there has been approved dosing limits. Gestational age most vulnerable is the end of week 2 to A weeks post-conception. If the much needed radiographs of a woman who is pregnant, then the X-ray exposure will be directed mostly to the head and neck area.Conc/usion: Therefore, the application of the principle of ALARA (As Low As Reasonably Achievable) as well as good protection, including instrument control, protection of the room, the cumulative exposure dose control, and the use of apron throughout the process, is noteworthy. Such protection, especially for pregnant women and fetuses.
VEGF expression and new blood vessel after dental X-ray irradiation on fractured tooth extraction wound Woroprobosari, Niluh Ringga; Sunariani, Jenny; Astuti, Eha Renwi
Dental Journal (Majalah Kedokteran Gigi) Vol 48, No 3 (2015): (September 2015)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v48.i3.p159-164

Abstract

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.
TINGKAT KEKERASAN PERMUKAAN RESIN KOMPOSIT AKIBAT MASA KEDALUWARSA MATERIAL Ristian Putri, Yuvika Intan; Firdausy, Muhammad Dian; Woroprobosari, Niluh Ringga
ODONTO : Dental Journal Vol 5, No 1 (2018): July 2018
Publisher : Fakultas Kedokteran Gigi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.5.1.45-48

Abstract

Background: Aplication of composites resin in relatively small amount as a restorative material often causing the material reaches its expiry date before all of the material can be used. Composites resin that have passed the expiry date would affect charateristic of the material. The aim of this study was to investigate surface hardness difference of composite resins based on material expiration date.Methods: This research was an experimental laboratory using post test only with control group design. Samples for this research were 27 divided into 3 groups based on its expiration date (2016, 2018 and 2019). The surface hardness was measured by Shore D Hardness. The result of this research were tested with One Way Anova and Post Hoc test LSD.Result: The lowest surface hardness result was measured on group 1 (81.02SHD) and the highest was group 3 (94.72 SHD). The result of One Way Anova test showed that there was signifcant differences in all groups (p<0.05). Post Hoc LSD test showed difference signifcantly between each groups.Conclusion: It can be concluded that there was signifcant difference of composite resins surface hardness based on material’s expiration date