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Journal articles on the topic 'Functionally Graded Dental Post'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Watari, Fumio, H. Kondo, Shingo Matsuo, et al. "Development of Functionally Graded Implant and Dental Post for Bio-Medical Application." Materials Science Forum 423-425 (May 2003): 321–26. http://dx.doi.org/10.4028/www.scientific.net/msf.423-425.321.

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2

Helal, Wasim M. K., Feng Chun Jiang, and Dong Yan Shi. "Determination of the Optimum Material Gradient for a Functionally Graded Endodontic Prefabricated Post Using a Sub-Problem Approximation Method." Journal of Biomimetics, Biomaterials and Biomedical Engineering 39 (November 2018): 24–39. http://dx.doi.org/10.4028/www.scientific.net/jbbbe.39.24.

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The treatment process of a tooth every short period has many disadvantages to the dental patient, for instance, wasting time, losing money, and tiring the dental patient. Therefore, selecting the suitable technique for treating the tooth, with increasing the lifetime of the tooth has become more necessary in the daily life of the dental scientists. In the present days, an Endodontic Prefabricated Post (EPP) plays an important vital role in the treatment process of the tooth. Comparisons among von Mises stress, shear stress, and deformation of homogenous cases were investigated in the present w

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3

Watari, Fumio, Susan Liao, Atsuro Yokoyama, Mamoru Omori, and Noboru Ohata. "FGM's for Biomedical Applications." Advances in Science and Technology 45 (October 2006): 1124–33. http://dx.doi.org/10.4028/www.scientific.net/ast.45.1124.

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Functionally graded materials (FGM) were fabricated for bio-medical applications, (1) implants, (2) dental core and post, (3) guided tissue regeneration (GTR) membranes. (1) FGM implants of Ti/HAP and TiN/HAP with the concentration changing gradually in the longitudinal direction of cylinder were fabricated to optimize both mechanical properties and biocompatibility in each region. Concentration gradient was formed by packing of dry powders into mold. Spark plasma sintering was effective for sintering of non-uniform composition in FGM. Brinel hardness decreased gradually from Ti part to HAP pa

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4

MATSUO, Shingo, Fumio WATARI, and Noboru OHATA. "Fabrication of a Functionally Graded Dental Composite Resin Post and Core by Laser Lithography and Finite Element Analysis of its Stress Relaxation Effect on Tooth Root." Dental Materials Journal 20, no. 4 (2001): 257–74. http://dx.doi.org/10.4012/dmj.20.257.

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5

RAHBAR, N., and W. O. SOBOYEJO. "Design of functionally graded dental multilayers." Fatigue & Fracture of Engineering Materials & Structures 34, no. 11 (2011): 887–97. http://dx.doi.org/10.1111/j.1460-2695.2011.01581.x.

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6

Mehrali, Mehdi, Farid Seyed Shirazi, Mohammad Mehrali, Hendrik Simon Cornelis Metselaar, Nahrizul Adib Bin Kadri, and Noor Azuan Abu Osman. "Dental implants from functionally graded materials." Journal of Biomedical Materials Research Part A 101, no. 10 (2013): 3046–57. http://dx.doi.org/10.1002/jbm.a.34588.

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7

Sajjad, Arbaz, Wan ZW Bakar, ShahNor Basri, and Siti NS Jamaludin. "Functionally Graded Materials: An Overview of Dental Applications." World Journal of Dentistry 9, no. 2 (2018): 137–44. http://dx.doi.org/10.5005/jp-journals-10015-1523.

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8

Watari, Fumio, Atsuro Yokoyama, Fuminori Saso, Motohiro Uo, and Takao Kawasaki. "Fabrication and properties of functionally graded dental implant." Composites Part B: Engineering 28, no. 1-2 (1997): 5–11. http://dx.doi.org/10.1016/s1359-8368(96)00021-2.

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9

Gali, Sivaranjani, Suhasini Gururaja, Vineetha Karuveettil, and Chandrashekhar Janakiram. "Methodological approaches in graded dental ceramics: a scoping review protocol." JBI Evidence Synthesis 22, no. 7 (2024): 1387–92. http://dx.doi.org/10.11124/jbies-23-00143.

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Objectives: This review will map the various methodological approaches used in graded dental ceramics and distinguish their material characteristics and properties. The aim is to identify gaps in the development and application of grading in dental ceramic systems. Introduction: The advantage of functionally graded materials is the absence of the weakest link, with no distinct boundaries, thereby eliminating the possibility of stress concentrations at the interfaces. Functionally graded materials are well established in nature, such as in human teeth, bone, and the bio-tissues of plants and an

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10

ABU KASIM, Noor H., Ahmed A. MADFA, Mohd HAMDI, and Ghahnavyeh R. RAHBARI. "3D-FE analysis of functionally graded structured dental posts." Dental Materials Journal 30, no. 6 (2011): 869–80. http://dx.doi.org/10.4012/dmj.2010-161.

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11

Asiri, Saeed. "Modal and Vibration Analysis of Functionally Graded Dental Implant." British Journal of Medicine and Medical Research 12, no. 7 (2016): 1–14. http://dx.doi.org/10.9734/bjmmr/2016/22139.

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12

Ichim, Paul I., Xiaozhi Hu, Jennifer J. Bazen, and Wei Yi. "Design optimization of a radial functionally graded dental implant." Journal of Biomedical Materials Research Part B: Applied Biomaterials 104, no. 1 (2015): 58–66. http://dx.doi.org/10.1002/jbm.b.33345.

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13

Natterodt, Jens C., Worarin Meesorn, Justin O. Zoppe, and Christoph Weder. "Functionally Graded Polyurethane/Cellulose Nanocrystal Composites." Macromol. Mater. Eng. 303 (April 18, 2018): 1700661. https://doi.org/10.1002/mame.201700661.

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14

Lin, Daniel, Qing Li, Wei Li, and Michael V. Swain. "Functionally Graded Dental Implant and its Effect on Bone Remodeling." Advanced Materials Research 47-50 (June 2008): 1035–38. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.1035.

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Currently, titanium dominates the dental implant materials due to its strength and bio-inerrability. The use of titanium implant had demonstrated considerable surgical success. However, researchers are spontaneously pursuing better materials to achieve better osseointegration in the early stage of implantation. Recently, dental implants based on functionally graded material (FGM) were introduced in pursuit for the goal of enhanced bio-compatibility. The concept for FGM dental implant is that the property would vary in certain pattern to match the biomechanical characteristics required at diffe

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15

Wu, Tsung-Lin, K. K. Shukla, and Jin H. Huang. "Post-buckling analysis of functionally graded rectangular plates." Composite Structures 81, no. 1 (2007): 1–10. http://dx.doi.org/10.1016/j.compstruct.2005.08.026.

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16

Lin, Daniel, Qing Li, Wei Li, Shiwei Zhou, and Michael V. Swain. "Design optimization of functionally graded dental implant for bone remodeling." Composites Part B: Engineering 40, no. 7 (2009): 668–75. http://dx.doi.org/10.1016/j.compositesb.2009.04.015.

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17

Lin, Daniel, Qing Li, Wei Li, and Michael Swain. "Bone remodeling induced by dental implants of functionally graded materials." Journal of Biomedical Materials Research Part B: Applied Biomaterials 9999B (2009): NA. http://dx.doi.org/10.1002/jbm.b.31531.

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18

Adnan Abbood, Ghazwan, and Raghdaa Kreem Jasim. "Evaluation of biocompatibility of Commercial Pure Titanium / Bioactive Glass Ceramic Functionally Graded Material as Dental Implant Material In-Vivo study." Mustansiria Dental Journal 16, no. 1 (2024): 96–108. http://dx.doi.org/10.32828/mdj.v16i1.1029.

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Background: the ultimate goal of modern implantology is fine and fast osseointegration which is a major factor influencing the success of dental implantation, and the optimum circumstances of it the biointegration which is the occurrence of continuity of ceramic implant to bone without intervening space.  Material and method: Two groups of cylindrical implant specimens were prepared from functionally graded material and commercial pure titanium. Each group composed of 40 implant specimens. The femur of 20 white male New Zealand rabbits, were chosen as implantation sites. Push out test wa

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19

Kuntz, Michael L., and M. Ibraheem Khan. "Selective Laser Processing for Functionally Graded Shape Memory Alloy Medical Devices: Process and Applications in Dentistry." AM&P Technical Articles 179, no. 7 (2021): 41–45. http://dx.doi.org/10.31399/asm.amp.2021-07.p041.

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Abstract Novel methods for altering the mechanical properties of functionally graded orthodontic medical devices leads to new applications. This article highlights recent applications of selective vaporization to enable functional grading of shape memory alloys in medical devices for the dental industry.

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20

Sadollah, Ali, Ardeshir Bahreininejad, Hadi Eskandar, and Mohd Hamdi. "Optimum Material Gradient for Functionally Graded Dental Implant Using Particle Swarm Optimization." Advanced Materials Research 647 (January 2013): 30–36. http://dx.doi.org/10.4028/www.scientific.net/amr.647.30.

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One of the main issues facing dental implantation, which makes osseointegration and bone remodeling problematical, is a mismatch of mechanical properties between engineered and native biomaterials. Functionally Graded Materials (FGMs) has been proposed as a potential alternative to some conventional implant materials such as titanium for selection in prosthetic dentistry. The idea of FGM dental implant is that the property would vary in a certain pattern to match the biomechanical characteristics required at different regions in the hosting bone. This research presents some important findings

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21

Watari, Fumio, Atsuro Yokoyama, Fuminori Saso, Motohiro Uo, Hironobu Matsuno, and Takao Kawasaki. "Imaging of Gradient Structure of Titanium/Apatite Functionally Graded Dental Implant." Journal of the Japan Institute of Metals 62, no. 11 (1998): 1095–101. http://dx.doi.org/10.2320/jinstmet1952.62.11_1095.

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22

Hedia, Hassan S., and Noha Fouda. "A New Design of Dental Implant Coating Using Functionally Graded Material." Materials Testing 55, no. 10 (2013): 765–71. http://dx.doi.org/10.3139/120.110499.

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23

Al-MAQTARI, Ali Abdullah, Abdul Aziz Abdul RAZAK, and Mohd HAMDI. "3D Finite element analysis of functionally graded multilayered dental ceramic cores." Dental Materials Journal 33, no. 4 (2014): 458–65. http://dx.doi.org/10.4012/dmj.2013-251.

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24

Dabbagh, Ali, Ahmed Madfa, Sadjad Naderi, et al. "Thermomechanical advantages of functionally graded dental posts: A finite element analysis." Mechanics of Advanced Materials and Structures 26, no. 8 (2017): 700–709. http://dx.doi.org/10.1080/15376494.2017.1410909.

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25

Li, Shi-rong, Jing-hua Zhang, and Yong-gang Zhao. "Thermal post-buckling of Functionally Graded Material Timoshenko beams." Applied Mathematics and Mechanics 27, no. 6 (2006): 803–10. http://dx.doi.org/10.1007/s10483-006-0611-y.

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26

Zhao, Feng-qun, Zhong-min Wang, and Hong-zhao Liu. "Thermal post-bunkling analyses of functionally graded material rod." Applied Mathematics and Mechanics 28, no. 1 (2007): 59–67. http://dx.doi.org/10.1007/s10483-007-0107-z.

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27

Abu, Kasim N.H., A.A. MADFA, M. HAMDI, and G.R. RAHBARI. "3D-FE analysis of functionally graded structured dental posts." Japanese Society for Dental Materials and Devices, January 1, 2011. https://doi.org/10.5281/zenodo.811351.

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This study aimed to compare the biomechanical behaviour of functionally graded structured posts (FGSPs) and homogenous-type posts in simulated models of a maxillary central incisor. Two models of FGSPs consisting of a multilayer xTi-yHA composite design, where zirconia and alumina was added as the first layer for models A and B respectively were compared to homogenous zirconia post (model C) and a titanium post (model D). The amount of Ti and HA in the FGSP models was varied in gradations. 3D-FEA was performed on all models and stress distributions were investigated along the dental post. In a

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28

Madfa, A.A., Kasim N.H. Abu, M. Hamdi, R. Rahbari G, and M.H. Latifi. "A finite element study of the multilayered structured dental post." University of Malaya, Kuala Lumpur, Malaysia, June 19, 2017. https://doi.org/10.5281/zenodo.811353.

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Ideally, dental post should have stiffness that is similar to the crown at the coronal part and stiffness similar to the dentine at the apical part. This will reduce stress concentration at either coronal or the apical parts of the dentine and minimize the chance of interfacial loosening and enhance the reliability of post. Objective: To investigate the biomechanical behaviour of Multilayered Structured Dental Posts (MSDPs) using finite element analysis (FEA). Methods: Two models of MSDPs consist of multilayer design of xTi-yHA composition added to a zirconia layer (model A) and the same compo

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29

Rahbari, RG, Kasim N.H. Abu, AA Madfa, M. Hamdi, and M. Bayat. "Porosity reduction model in titanium - hydroxyapatite FGM composites using shrinkage measurement." Maney Publishing, January 1, 2011. https://doi.org/10.5281/zenodo.811343.

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A multilayered titanium (Ti)â??hydroxyapatite (HA) functionally graded material was produced via pressureless sintering at 1100Â?C. The initial and final porosities were determined via shrinkage measurements. The final porosity verification was carried out by the Archimedes method. The experimental porosity measurements were compared with two proposed models. The macroscopic and microstructure features and the measured porosities confirmed that the volume fraction porosity was associated with both matrix and reinforcing particles in all cases. The percolation threshold was observed at x = 0Â?7

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30

Madfa, A., Kasim N.H. Abu, M. Hamdi, R.G. Rahbari, and M. Bayat. "Thermo-mechanical stress in multilayered dental post due to temperature gradient." University of Malaya, Kuala Lumpur, Malaysia, January 1, 2010. https://doi.org/10.5281/zenodo.811355.

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Objective: To analyse thermo-mechanical stress in endodontically treated teeth restored with Multilayered Structured Dental Posts (MSDPs) under cold and hot conditions using Finite Element Analysis (FEM). Methods: Three MSDPs of multilayer design of xTi-yHA composition added to a zirconia layer (model A), an alumina layer (model B) and a titanium layer (model C) were compared with zirconia (model D) and titanium (model E) posts. The fractions of Ti and HA was varied gradually. Changes in temperature of an endodontically restored tooth model were calculated as a result of hot and cold response.

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31

Abu, Kasim N.H., BII Abdullah, and I. Mahadevan. "THE RADIOPACITY OF DENTAL PROSTHESES (FIXED AND REMOVABLE) ON PLAIN RADIOGRAPHS-AN EXPERIMENTAL STUDY." January 1, 1998. https://doi.org/10.5281/zenodo.811391.

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The impaction of dental prostheses in either the airway or esophagus is an under-recognized problem which may result in severe morbidity or even mortality. The radio-opacity and the size of fixed and removable dental prostheses in an animal carcass was investigated. Prostheses were placed one at a time in the oro-laryngopharynx or in tho trachea and the esophagus. Lateral radiographs were taken for each prosthesis in site. The radio-opacity and size of the prostheses on the radiograph was graded. Most of the prostheses investigated were radio-opaque though the removable prostheses were more li

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32

AL-Sanabani, F., Kasim N.H. Abu, and SN Gan. "Conversion of a new monomer for dental resin application." January 1, 2008. https://doi.org/10.5281/zenodo.811369.

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Objective: The aim of this study was to investigate the degree of conversion and cross-linking of polyurethane dimethacrylate (PUDMA), derived from palm oil polyol, for dental resin application. Methods: Polyurethane dimethacrylate was synthesized by reacting excess amount of Methylene diphenyl diisocyanate (MDI) with palm oil polyol. The resulting isocyanate polyurethane prepolymer was then acrylated using hydroxymethacrylate (HEMA). Fourier transform infrared spectroscopy was used to ascertain the formation of PUDMA, and to determine the degree of conversion (DC) of: I) PUDMA, II) Bis-GMA, I

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33

AZIZ, A.A., Kasim N.H. Abu, M.Y.P. MOHAMAD YUSOF, and M. PAIIZI. "Cutting efficiency of dental burs-A pilot study." January 1, 2008. https://doi.org/10.5281/zenodo.811373.

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Objectives: This study aim to evaluate the cutting efficiency of tungsten carbide burs (TC) and rotary diamond instruments by measuring their rake angle and visual examination of their cutting surfaces respectively, using scanning electron microscopy (SEM). Materials and Method: 60 short and long head pear-shaped TC and 18 round rotary diamond instruments that had been used to prepare < than 5, > than 5 and > than 10 cavities were selected from the 3rd & 4th year dental students, Dental Faculty, University of Malaya. 12 cylindrical and flame rotary diamond instruments were also se

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34

Abu, Kasim N.H. "Thermocycling as a means of inducing mechanical fatigue in dental composites." May 1, 1998. https://doi.org/10.5281/zenodo.811333.

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The effect of thermocycling on the fatigue behaviour of 5 commercially available dental composites; P50(P)1, Silux Plus(S)2, Heliomolar(H)3, Clearfil Photo Posterior-light activated(CLA)4 and Clearfil Posterior-chemically activated(CC)5 was investigated. One hundred and ten rectangular bar specimens were prepared for each materil and divided into 11 groups of 10 each. Test groups 1-6 were subjected to 0, 250, 500, 750, 1000 and 1000 thermal cycles respectively. Each thermal cycle consisted of 1 minute immersion time of 50 seconds per change. The control groups 7-11 were stored in distilled wat

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35

Abu, Kasim N.H., and J. F. McCabe. "The effect of thermocycling on the fatigue behavior of dental composites." January 1, 1995. https://doi.org/10.5281/zenodo.811339.

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The effect of thermocycling on the fatigue behaviour of 2 microfilled composites; Silux Plus3 and Heliomolar2 and 3 hybrid composites; P502, Cleafil Photo Posterior3 (both light-activated) and Cleafil Posterior3 (chemically-activated) was investigated using a ball mill. Ninety specimens (2 x 2 x 25mm) of each material were used. The specimes were divided into 3 groups of 30 and were stored for 24 h in water at 37oC (Group A), subjected to 104 thermal cycle over 45 days (Group B) and stored in water at 37oC for 45 days (Group C). Ten specimens of each material were tested in a 0.5 litre capacit

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36

Ahmad, A., and Kasim N.H. Abu. "Effect of mouthrinses on surface microhardness of selected dental composites." Preliminary Program for 21st International Association for Dental Research - South East Asia Division : Annual Research Meeting, January 1, 2006. https://doi.org/10.5281/zenodo.811375.

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Objective: To compare the surface microhardness of composites(SpectrumÂ?TPH, Filtekâ??Z350, Ceramâ??X mono and Ceramâ??X duo-enamel shade) before and after immersion in alcohol containing mouthrinses (Listerine), alcohol-free mouthrinses (Oral-B) and experimental herbal mouthrinses based on plant extract (mouthrinses X, Y and Z). Methods: 60 disc-shaped specimens of approximately 10mm x 2mm were perpared from various composites using perspex split mould and was cured for 40 seconds. The irradiated surface was polished using Sof-Lex pop-on polishing discs. The specimens were randomly divided to

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37

Abu, Kasim N.H., and A. MOHAMID-YASIN. "Cleaning Ability of Disinfectants for Dental Steel Burs." September 3, 2004. https://doi.org/10.5281/zenodo.811389.

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Dental burs are a source of bacterial contamination due to its direct contact with carious teeth, saliva and blood. Objective: The aim of this study was to evaluate the disinfecting and cleaning ability of selected commercially available disinfectants on dental burs. Method: Size 5 round stainless steel burs were used to excavate caries from freshly extracted human molars. The burs were then immediately immersed in Grotanat Drill Bath (ShÃ?lke & Mayr, Germany), Micro 10 (Unident, Swizerland), Gigasept FF (ShÃ?lke & Mayr, Germany), Lysetol AF (ShÃ?lke & Mayr, Germany) and 70 Isoprop

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38

Abu, Kasim N.H. "Effect of thermocycling on the fracture toughness of composites." January 1, 1997. https://doi.org/10.5281/zenodo.811337.

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Fracture toughness has been recognised to be one of the most important mechanical property for retorative materials. It is the aim of this study to investigate the effect of thermocycling an fracture toughness of a range of dental composites; P50(P)1 , Silux Plus(S)2, Heliomolar(H)3, Clearfil Photo Posterior-light activated(CLA)4 and Clearfil Posterior-chemically activated(CC)3. 110 rectangular pre-notched specimens was prepared for each material utilising a stainless steel mould. The specimens were divided into 11 groups of 10 each. Test groups 1-6 were subjected to 0, 250, 500, 750, 1000 and

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39

Shahabudin, N., Kasim N.H. Abu, and SN Gan. "Modification of PMMA dental resin with palm oil based polyol." January 1, 2008. https://doi.org/10.5281/zenodo.811371.

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Objectives: This study is an attempt to enhance the properties of conventional PMMA denture material by incorporation of a polyfunctional polyol derived from palm oil by copolymerization with methyl methacrylate monomer to overcome the low fatigue resistance property of PMMA. Methods: A series of copolymerizations of palm oil polyol with MMA was performed in solution. The polyol was added from 40-20 , MMA from 20-40 , benzoyl peroxide as initiator was at 0.04 and toluene used as solvent was at 60 of the total weight. The copolymerization was carried out in a 500ml-round-bottom reaction flask,

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40

Ahmad, R., Kasim N.H. Abu, and A.K. Palaniappan. "Multiple intelligences and academic performance among Malaysian undergraduate dental students." January 1, 2006. https://doi.org/10.5281/zenodo.811379.

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Objectives: To identify the nature of multiple intelligences among dental students and investigate the relationship between these intelligences and performance in the various skill areas of dentistry. Methods: Sixty-one final year dental students at the Faculty of Dentistry, University of Malaya in Malaysia were administered a Multiple Intelligence Inventory (MII), David Larear, 1991) after their final written examinations. MII comprised 80 4-point likert items assessing eight types of multiple intelligences: Verbal/Linguistic, Visual Spatial, Logical Mathematical, Musical Rhythmic, Intra Pers

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41

Brito da Cruz, Mariana, Joana Faria Marques, Gabriella Peñarrieta-Juanito, et al. "Bioactive-enhanced PEEK dental implant materials: mechanical characterization and cellular responses." Journal of Oral Implantology, July 14, 2020. http://dx.doi.org/10.1563/aaid-joi-d-19-00172.

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The aim of this study was to characterize the mechanical properties of a bioactive-modified PEEK manufacturing approach for dental implants and to compare the in vitro biological behavior with Titanium alloy (Ti6Al4V) as the reference. PEEK, PEEK with 5% hydroxyapatite (HA), PEEK with 5% beta-tricalcium phosphate (ßTCP) and Ti6Al4V discs were produced using hot pressing technology to create a functionally graded material (FGM). Surface roughness values (Ra, Rz), water contact angle, shear bond strength and Vickers hardness tests were performed. Human osteoblasts and gingival fibroblasts bioact

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42

Abu, Kasim N.H., and D. T. Millett. "The ball mill as a means of investigating the mechanical failure of dental materials." Elsevier, January 1, 1996. https://doi.org/10.5281/zenodo.811321.

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Objective: The main purpose of this paper is to present a new method of predicting clinical performance using mechanical loading in a ball mill. Methods: A series of four experiments (two involving a hybrid composite and one each on orthodontic brackets and bands) is described in which the ball mill was used to subject specimens to mechanical fatigue. Results: A reproducibility study using composite beam specimens showed no significant difference between the Mean Survival Time (MST) in all the three experimental runs (P = 0.42). When subjected to thermal cycling, the MST of the cycled group wa

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43

Abu, Kasim N.H. "Dental Students' Perception Towards Effective Clinical Feedback and Assessment." January 1, 2004. https://doi.org/10.5281/zenodo.811387.

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Supervised practice in the dental clinic is one of the teaching tools in preparing a good dental practitioner. Teachers who are efficient in helping students learn in these settings improve this process. The ability to impart good feedback and carry out proper assessment is an important measure of effectiveness. Objective: The purpose of this study was to investigate the perception of students from the Faculty of Dentistry, University of Malaya towards effective clinical feedback and assessment from the staff of the Dept. of Conservative Dentistry. Method: A 4-point Likert-type scale questionn

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44

Ramasindarum, C., and Kasim N.H. Abu. "Structural and compositional characterization of cilverFil amalgam." International Association for Dental Research, March 1, 2011. https://doi.org/10.5281/zenodo.811349.

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SilverFil (Silverfildental Products, Malaysia) is another commercially available dental amalgam; however it is based on silver and mercury only. It is claimed that upon amalgamation, there is no excess mercury in SilverFil. Objectives: The objectives of this study were to determine the structural state and chemical composition of the starting materials and presence of mercury in the resulting amalgam. Methods: All the starting materials of SilverFil and the SilverFil amalgam specimens were characterize using Field Emission Scanning Electron Microscopy (FESEM-EDX), X-Ray Diffraction (XRD) and X

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45

Govindasamy, V., V.S. Ronald, A.N. Abdullah, et al. "Differentiation of dental pulp stem cells into islet-like aggregates." SAGE PUBLICATIONS INC, 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA, May 1, 2011. https://doi.org/10.5281/zenodo.811317.

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The post-natal dental pulp tissue contains a population of multipotent mesenchymal progenitor cells known as dental pulp stromal/stem cells (DPSCs), with high proliferative potential for self-renewal. In this investigation, we explored the potential of DPSCs to differentiate into pancreatic cell lineage resembling islet-like cell aggregates (ICAs). We isolated, propagated, and characterized DPSCs and demonstrated that these could be differentiated into adipogenic, chondrogenic, and osteogenic lineage upon exposure to an appropriate cocktail of differentiating agents. Using a three-step protoco

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46

Then, S., G.S. Neon, and Kasim N.H. Abu. "Performance of melamine modified urea-formaldehyde microcapsules in a dental host material." WILEY-BLACKWELL, COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA, November 1, 2011. https://doi.org/10.5281/zenodo.811311.

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Urea-formaldehyde (UF) microcapsules filled with dicyclopentadiene (DCPD) show potential for making self-healing dental restorative materials. To enhance the physical properties of the capsules, the urea was partially replaced with 0-5% melamine. The microcapsules were analyzed by different microscopic techniques. DSC was used to examine the capsule shell, and the core content was confirmed by (1)H NMR spectroscopy. Capsules in the range of 50-300 mu m were then embedded in a dental composite matrix consisting of bisphenol-A-glycidyl dimethacrylate (Bis-GMA) and triethylene-glycol dimethacryla

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47

Abu, Kasim N.H., BJ Abdullah, and J. Manikam. "The current status of the case report: terminal or viable." January 1, 2009. https://doi.org/10.5281/zenodo.811341.

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The case report, which has a long history in medicine, has seen its fortune wax and wane with time. We discuss the challenges facing the continued survival of the case report, including the inability of journals to cope with the increased load and increased cost of publication, ethical issues, the impact factor and the rise of evidence-based medicine. We highlight the important role that the case report will continue to play in medical research and education, as a means of sharing information and detecting novelty through observations. Most importantly, the case report serves as a stepping sto

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Radzi, Z., Kasim N.H. Abu, NA Yahya, and SN Gan. "Impact strength of an experimental polyurethane-based polymer." January 1, 2007. https://doi.org/10.5281/zenodo.811345.

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The impact strength of a newly developed experimental polyurethane-based polymer which is derived from palm oil (Experimental PU) was compared with denture polymers; heat-cured and self cured polymethyl methacrylate (PMMA) and EclipseÂ?, light-activated urethane dimethacrylate prosthetic resin system. Ten specimens were prepared using heat-cured PMMA (MeliodentÂ? Heat Cure, Heraeus Kulzer, Germany), self cured PMMA (MeliodentÂ? Rapid Repair, Heraeus Kulzer, Germany), EclipseÂ? baseplate resin (Dentsply, USA) and Experimental PU material. Specimens were prepared following manufacturerâ??s instr

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Osman, N. A. Abu, F. Ibrahim, W. A. B. Wan Abas, et al. "Acquiring anatomical representation of human maxilla for rapid maxillary expansion abstract." SPRINGER, 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES, January 1, 2008. https://doi.org/10.5281/zenodo.811335.

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The purpose of the study is to model and provide a better understanding of maxilla bone involved in the treatment for rapid maxillary expander (RME) for dento-facial applications. The treatment is recommended for patients presented with an arch width deficiency named cross bites. Cross bites often cause abnormal physical forces that disrupt the balance of the occlusal relationship. More commonly, the maxilla or the upper jaw appears to be narrow and contributes to significant degree of crowding in the mouth. Early investigators 1-4 discovered that rapid maxillary expansion resulted in a splitt

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Abu, Kasim N.H., N. A. Yahya, Z. Radzi, W. J. Basirun, and A. A. Ghani. "Silverfil: Its physical characterization." Springer, January 1, 2007. https://doi.org/10.5281/zenodo.811383.

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This article focuses on the physical characterization of Silverfil (R) amalgam. Analysis of the amalgamated material semi-quantitatively showed that Silverfil (R) comprised of approximately two thirds mercury and one third silver. No other elements were detected. Examination of the amalgamated material by x ray mapping and metallographically showed no evidence of free mercury present. Silverfil (R) has strong affinity towards the mercury ion. X-ray Diffraction analysis showed that the amalgamated Silverfil (R) is similar to a mineral in nature called "Moschellandsbergite". The advantages of Si

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