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Journal : Padjadjaran Journal of Dentistry

The different amount of composite and amalgam restoration in posterior teeth of patient Primadisya, Fitri Dwi; Andang, Milly Armilia
Padjadjaran Journal of Dentistry Vol 26, No 1 (2014): March 2014
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol26no1.26753

Abstract

Introduction: Dental caries is a problem that usually happens in the society. One of the treatments for dental caries is restoration. Dental restoration material which one usually used are compsite and amalgam. The aim of this research is to acknowledge the different amount between the usage of composite and amalgam restoration in posterior teeth of patient in RSKGM Bandung. Methods: Type of research was descriptive. Sample were taken from patients data who had dental treatment of composite and amalgam restoration in posterior teeth in RSKGM Bandung on 1st July – 31st December 2011. Differences result of two restoration inthis research analyzed with test-t analysis.Results: Total amount of posterior teeth restorated was 1485 teeth, which 1445 teeth were restored using composite and 40 teeth were restored using amalgam. It showed that the usage of composite restoration was more than amalgam restoration.Conclusion: there is a significant difference between the number of composite restorations and amalgam on the posterior tooth. The average number of composite restorations is greater than amalgam restoration.
The difference of lower and upper surface hardness ratio between LED-activated hybrid composite resin and nano composite resin Mona, Deli; Fadil, Mochammad Richata; Andang, Milly Armilia
Padjadjaran Journal of Dentistry Vol 28, No 2 (2016): July 2016
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol28no2.26465

Abstract

Introduction: Composite polymerization is a polymer molecule formation from monomeric molecules. To obtain good physical and mechanical properties of composite resin restoration, the dental composite resin must have the possibility of an optimal quantity of its monomer converted to the polymer during the polymerization reaction. The type, size, and content of the fillers in the composite are also essential factors in the polymerization process. A hardness test can be used to indirectly measure the hardness ratio of the upper and lower surfaces of the composite material (relative curing degree). The objective of this study was to analyze the differences in the hardness ratio of the upper and lower surface between LED-activated hybrid composite resin and nano composite resin. Methods: Thirty composite resin samples were randomly selected and divided into 2 groups. Group I was the hybrid composite resin group and Group II was the nano composite resin group. Samples were then formed into discs with a diameter of 6mm and a thickness of 2mm and polymerized using LCU LED with a light intensity of 800 mW/cm2 for 20 seconds. After 24 hours, the upper and lower surfaces of each sample were tested for three testing points using Vickers Hardness Tester. The data were then analyzed using the t-test. Results: The hardness ratio between the upper and lower surfaces (relative curing degree) of the hybrid composite resin and nano composite resin was 0.93 and 0.88 consecutively. Conclusion: There is any difference between the upper and lower surface hardness ratio of LED-activated hybrid composite resin and nano composite resin.
The effects of soft drinks on the released of calcium from the enamel surface Miranti, Diandra Audyla; Sukartini, Endang; Andang, Milly Armilia
Padjadjaran Journal of Dentistry Vol 27, No 2 (2015): July 2015
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol27no2.26471

Abstract

Introduction: Calcium release from the enamel surface is known as enamel demineralisation. Enamel demineralisation is a chemical process of mineral loss from the email structure. One of the factors that cause demineralisation is the presence of acids derived from food or beverages consumed. This study was aimed to determine the effects of soft drinks and the amount of calcium release from the enamel surface. Methods: This study was an in-vitro experimental. The population was extracted maxillary premolars from orthodontics clinics in health centres, hospitals, and private clinics throughout Bandung and Jakarta. As many as 20 crown of maxillary premolars divided into two groups. Dissolved calcium was measured using the Atomic Absorption Spectrophotometry (AAS). Data obtained was tested using an independent t-test. Results: The results showed that the amount of calcium released after exposure of soft drink was higher than soda water. The average amount of calcium released after soft drink exposure was 4122 ppm and soda water was 3492 ppm. Conclusion: Soft drink affects the calcium release from the enamel surface.
Differences level of hybrid resin composite’s hardness based on post-irradiation time with photoactivated light emitting diode Bianca, Esther; Andang, Milly Armilia; Sukartini, Endang
Padjadjaran Journal of Dentistry Vol 24, No 2 (2012): July 2012
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol24no2.26825

Abstract

Introduction: Adequate surface hardness of the resin composites is important to obtain optimum clinical performance of the restoratives in stress dental bearing areas. For light-activated resin composites, polymerization begins when curing light initiates polymerization and continues after the curing light goes off. The degree of conversion and hardness of resin composite is also affected by post-irradiation time. The objective of this study was to evaluate the difference of the hardness hybrid resin composite based on post-irradiation time at 10 minutes, 24 hours, and 7 days with photoactivated light-emitting diode (LED) to obtain the optimum hardness. Methods: This study was using a true experimental research method. Thirty samples of hybrid resin composites, disk-shaped of 6 mm in diameter and 2 mm in depth were polymerized by LED LCU at 800mW/cm2 for 20 seconds. The hardness of the resin composite was measured by Vickers Hardness Tester. The result was analyzed statistically with ANOVA. Results: There was a significant difference level of hardness among the three groups. Hardness mean value for post-irradiation time at 10 minutes was 56,4 VHN, for post-irradiation time at 24 hours was 65,8 VHN, and for post-irradiation time at 7 days was 60,0 VHN. Conclusion: There were differences level of hybrid resin composite’s hardness based on the post-irradiation time at 10 minutes, 24 hours, and 7 days with photoactivated LED and the optimum hardness of post-irradiation time at 24 hours.
Direct composite restoration of permanent anterior teeth uncomplicated crown fractures Nicholas, Ashley Evans; Andang, Milly Armilia; Hidayat, Opik Taofik
Padjadjaran Journal of Dentistry Vol 24, No 1 (2012): March 2012
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.742 KB) | DOI: 10.24198/pjd.vol24no1.15371

Abstract

An uncomplicated crown fracture is a fracture that involves only the tooth enamel or the dentin and tooth enamel without any damage or exposure to the pulp. Crown fracture of the anterior teeth usually caused by traumatic forces such as falls, accidents, violence, or sports activities. Traumatic injuries of the oral region frequently involve the anterior teeth, especially maxillary incisors due to the anatomic factors which may affect the functional and aesthetical values of the teeth. The objective of this literature study was to know more about uncomplicated crown fracture of the anterior teeth and its restoration. This research was a literature study performed by researching, highlighting various interesting facts and compiling the relevant published journals. The most common and ideal direct restoration of the anterior teeth was the composite resin restoration. The anterior teeth restoration was considered to be a complex and challenging case to solves due to the fact that besides reconstructing the tooth and regaining the function, the aesthetical aspect was also becoming the main objectives. The permanent anterior teeth uncomplicated crown fracture was the most common case of tooth fractures which was mainly caused by traumatic injuries such as falls, accidents, excessive forces, violence, and also sports activities. Dental injuries of the anterior teeth also affected the aesthetical properties and the function of the tooth. Composite resin restoration was able to performed directly on the permanent anterior teeth uncomplicated crown fracture.