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Henri Hartman, Henri
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Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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The effects of temporo mandibular joint disorder with clicking symptom on children mastication performance in Deutero Malay race children aged 12-15 years Hartman, Henri; Pertiwi, Arlette Suzy Puspa; Runkat, Jakobus; Herdiyati, Yetty; Oewen, Roosje Rosita
Padjadjaran Journal of Dentistry Vol 26, No 3 (2014): November
Publisher : Faculty of Dentistry Universitas Padjadjaran, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (297.655 KB) | DOI: 10.24198/pjd.vol26no3.14006

Abstract

Temporo Mandibular Joint Disorder (TMD) could be caused by forward head posture. Articular sound/TMJ clicking is the most often sign and symptom for TMD that could happen in human being. The presence of TMD such as TMJ clicking would cause an imbalance masticatory system. The purpose of this research is to investigate TMJ clicking effects to masticatory performance. This research was cross-sectional study with a type of epidemiology survey. Subject were children aged 12-15 years old Deutero-Malay sub-races Live in Bandung and was taken using multi-stage random sampling technique. Subject; consisted of 24 children as control group and 28 children as TMJ clicking group. Both group were then checked for masticatory performance using multiple sieve method and 20x chewing of artificial test food. Mastication performance value represented by median particle size (MPS) particle distribution (b) for each group. MPS from TMJ clicking group (3.0571,SD=0.9990) showed higher value than control group (2.28958,SD=0.66838). Statistic analysis with t-test showed that there’s a significant result in both of group (pvalue=0,0024, α = 0,05). Conclussion, temporo mandibular joint clicking subject has lower masticatory performance.
Penetration capability of three different light curing units to composite-resin as measured by radiometer Hartman, Henri
Padjadjaran Journal of Dentistry Vol 30, No 2 (2018): July
Publisher : Faculty of Dentistry Universitas Padjadjaran, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (314.969 KB) | DOI: 10.24198/pjd.vol30no2.18326

Abstract

Introduction: Composite-resin is widely used as a restorative material in dental practice on a daily basis when it comes to an aesthetic consideration. The purpose of this study is to investigate and compare the light penetration capabilities of three light curing units (LCU) through layers of composite resin using a radiometer.  Method: Composites resin discs (2mm thick with 8 mm diameter) were cured out of seven different shades. Each specimen were used as a barrier, and a light source from three different LCUS was then applied through it. The radiometer was used to record the intensities of each LCU. Result: LED.C (Woodpecker™) has the lowest penetration capabilities to pass through the barrier compared to all LCU. The output intensity (mW/cm2) of all LCU has decreased gradually. ANOVA test showed that there was the significant result (p<0.01) for each specimen. Conclusion: The differences composite-resin shade could decrease the penetration capability of LCU.
Co-Authors Arlette Suzy Puspa Pertiwi Jakobus Runkat, Jakobus Roosje Rosita Oewen, Roosje Rosita Yetty Herdiyati, Yetty