Garuda - Garba Rujukan Digital

Murniwati Murniwati

Staf Dosen Kedokteran Gigi Unand

Author-ID : 4166259

Dentistry

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PENGARUH WAKTU PENGADUKAN TERHADAP WAKTU GELASI BAHAN CETAK ALGINAT Audia Tria Putri; Rizanda Machmud; Murniwati Murniwati
Andalas Dental Journal Vol 4 No 1 (2016): Andalas Dental Journal
Publisher : Faculty of Dentistry Universitas Andalas

Alginate is one of many dental materials that used for the impressing materials. Mixing time is one of factorsthat affected the setting time. The aim of this study was to determine the effect of mixing time at 30 seconds, 35seconds, 40 seconds, 45 seconds, 50 seconds, 55 seconds and 60 seconds on setting time of alginate. This studyused experimental method. The samples that used were 42 samples and divided into 7 groups of mixing time,that were 30 seconds (control), 35 seconds, 40 seconds, 45 seconds, 50 seconds, 55 seconds, and 60 seconds.Setting time was tested with acrylic test rod based on ADA specification no.18. The alginate powder was mixedwith water (10 gr : 23 ml ratio), then put in the mould. Acrylic test rod was placed in contact with the surface ofalginate dough. The setting time was measured from the starting of the mix to the time when alginate does notadhere to the end of the rod. Result of this study showed that the average of setting time of alginate which mixedfor 30 seconds (control), 35 seconds, 40 seconds, 45 seconds, 50 seconds, 55 seconds, and 60 seconds was120.17 ± 3.312 seconds, 119.00 ± 1.265 seconds, 118.17 ± 1.472 seconds, 114.83 ± 3.896 seconds, 112.00 ±1.673 seconds, 109.17 ± 0.983 seconds, and 105.33 ± 4.082 seconds respectively. One Way Anova test shows significant difference among all experimental group with p=0.000. The change of setting time alginate show significant difference with control group when it mixed for 45 seconds, 50 seconds, 55seconds, and 60 seconds.Keywords: alginate, mixing time, setting time

PERBEDAAN LEBAR GIGI ANTERIOR RAHANG ATAS DENGAN KONSEP GOLDEN PROPORTION PADA MAHASISWA FKG UNIVERSITAS ANDALAS SUKU MINANG Riani Hafiza; Fadil Oenzil; Murniwati Murniwati
Andalas Dental Journal Vol 3 No 2 (2015): Andalas Dental Journal
Publisher : Faculty of Dentistry Universitas Andalas

Background: One of the parameter that can represent the ideal beauty is the concept of the golden proportion. The proportion on teeth can be seen from frontal view. The width of the central incisor is 62% wider than the width of the lateral incisor. The width of the lateral incisor is 62% wider than the visible part of canine. One of the factors that affect the size of the tooth is race. Minang ethnic is included to Malay Deutro. Purpose: The purpose of this study is to determine the difference of the width of maxillary anterior teeth with the concept of the golden proportion in Minang ethnic students of Faculty of Dentistry, Andalas University. Methods: The study was an analytic observasional with cross-sectional approach. The sampling was purposive sampling and the number of subjects were 26 respondents. Photographs of the respondents were taken at least three times each using a digital camera Sony Cyber-shot DSC-S3000 10.1 MP, edited using software Adobe Photoshop CS5 and analyzed using paired sample t test. Result: The result of paired sample t test is p=0.000 (p<0.05). This suggests there is a significant difference between the width of maxillary anterior teeth with the concept of the golden proportion in Minang ethnic students of Faculty of Dentistry, Andalas University. The proportion of the width of maxillary anterior teeth from the frontal view according to golden proportion 1.62 : 1 : 0.62, when it comes to Minang ethnic students of Faculty of Dentistry, Andalas University, it is measured as 1.51 : 1 : 0.76 for right region and 1.52 : 1 : 0.77 for left one. Conclusion: The concept of the golden proportion can not be used to Minang ethnic students of Faculty of Dentistry, Andalas University. Keywords: aesthetic, anterior teeth, golden proportion, maxillary, Minang ethnic

Hubungan Antara Body Mass Index (BMI) dan Pengalaman Karies pada Anak Pra-Sekolah di Puskesmas Rawang Dini Chairani Prima; Murniwati Murniwati
Andalas Dental Journal Vol 4 No 2 (2016): Andalas Dental Journal
Publisher : Faculty of Dentistry Universitas Andalas

influence dental caries due to altered saliva composition and impaired secretion. Intake of foods rich in carbohydrates can be risk factor for overweight, obesity and tooth decay. BMI is considered a simple method to analyse a nutritional status. Purpose: The aim of this study is to determine the relationship between BMI and caries status of preschool children in Puskesmas, Rawang District of Padang City. Method: This study used the cross sectional design, with the total sample were 72 students from 6 from Early Childhood Development Place (PAUD) which located in Puskesmas Rawang, and selected through proportionate stratified random sampling method. The analysis of the relationship between BMI (underweight, normal weight, and obese) and caries status is conducted with Kruskal Wallis’ Test and followed by Mann-Whitney’s Test. Result: Ultimately, this study shows that there are significant differences (p <0.05) between BMI (underweight, normalweight, and obesity) and caries status, which for the category of underweight-obesity showed significant difference (p<0.05), whereas in the category of underweight-normalweight and normalweight-obesity showed there is no significant differentiation (p <0.05). The results of this study indicated that the highest score of caries is in the categories of underweight children.Conclusion: As the conclusion of this study revealed that there is a relation between Body Mass Index (BMI) and Caries Status. Keywords: Body Mass Index (BMI), Caries

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