Thermal conductive analysis of restored teeth by finite element method

Takahashi, Noriaki

doi:10.1111/j.1365-2842.1982.tb00537.x

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…(1973) and many such studies have been published since. Many early analyses modelled just the crown and a small portion of the root (Farah et al ., 1976; Yettram et al ., 1976; Bell et al ., 1982; Takahashi, 1982; Peters & Poort, 1983; De Vree et al ., 1984; Kubo et al ., 1984; Morin et al ., 1988; Van Noort et al ., 1988) presumably because little was known about the physical properties of the supporting structures, such as the periodontal ligament. Other studies included at least half of the root (Farah et al ., 1973; Wright & Yettram, 1978; De Vree et al ., 1983; Hickman et al ., 1991;) while others included the periodontal ligament (Thresher & Saito, 1973; Selna et al ., 1975; Takahashi et al ., 1980) or the periodontal ligament and supporting bone (Kitoh et al ., 1977; Atmaran & Mohammed, 1981; Williams & Edmundson, 1984; Khera et al ., 1988, 1991; Goel et al ., 1990, 1992; Korioth & Hannam, 1994).…”

Section: Introductionmentioning

confidence: 99%

An investigation into the importance of the periodontal ligament and alveolar bone as supporting structures in finite element studies

Rees

2001

J of Oral Rehabilitation

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Many finite element analyses studies have been published in the dental literature. Some of these have analysed just the crown of the tooth, others have included part or all of the root, while others have included the supporting periodontal ligament and alveolar bone. The aim of this study was to examine which of the supporting structures was important to the model when analysing the stress distribution within a tooth. A two-dimensional plane strain finite element model of a lower second pre-molar was developed, which included the supporting periodontal ligament and alveolar bone. Two 50 N loads were applied to simulate the effect of a load in centric occlusion. The nodal x, y and shear stresses were recorded along two horizontal planes, one in the crown and one in the cervical region. Each of the supporting structures was systematically removed and the remaining structures reanalysed. It was found that it was particularly important to include both the periodontal ligament and alveolar bone when undertaking the finite element analyses of teeth.

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Section: Introductionmentioning

confidence: 99%

An investigation into the importance of the periodontal ligament and alveolar bone as supporting structures in finite element studies

Rees

2001

J of Oral Rehabilitation

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“…In the last decade, this mathematical method has received increasing notice in dental biomechanical studies. The method has been used for twodimensional as well as axisymmetric tooth models, analyzing the mechanical stress (Farah, 1972;Peters, 1981), the thermal stress (Lloyd et al, 1978), or the thermal conductivity (Takahashi, 1982).…”

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confidence: 99%

The Influence of Restorative Dental Materials on Heat Transmission in Human Teeth

et al. 1984

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Using the finite element method, we analyzed the temperature distribution and heat flow patterns in an axisymmetric tooth model. The models of an unrestored tooth and three teeth restored with different restorative materials were evaluated comparatively. The insulating ability of a calcium hydroxide cement base (Ca(OH)2) is low, which is inherent in its insufficient thermal and poor mechanical properties. In the given conditions, the Ca(OH)2 base reduces the temperature increase at the cement-dentin interface by 12.5% with respect to a restoration of amalgam only. By using a double base (Ca(OH)2 + polymer-modified zinc oxide-eugenol), the reduction is 21.9%. With respect to a sound tooth model, the presence of a double base in the restored tooth caused a temperature increase of only 0.1 degree C at the pulpo-dentinal junction. The thermal conductivity coefficient (lambda) of amalgam does not have any influence on the results of the calculations. The heat transfer coefficient (alpha) turned out to be an essential parameter in this mathematical model.

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“…Although, polysaccharides from different algal species displayed strong antioxidant activities, the actual mechanism of action of polysaccharides demands a detailed investigation. Also, it is reported that the structural features of algal polysaccharides such as molecular weight, monosaccharide make-up, degree and position of sulphation [ 164 , 191 , 192 ], greatly influence the antioxidant activity, however, how these features affect the activity, is yet unclear.…”

Section: Advanced Extraction Methodologies For Algal Polysaccharidesmentioning

confidence: 99%

Perspective on the Therapeutic Applications of Algal Polysaccharides

et al. 2021

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Algae are an enormous source of polysaccharides and have gained much interest in human flourishing as organic drugs. Algal polysaccharides have aroused interest in the health sector owing to the various bioactivities namely anticancer, antiviral, immunoregulation, antidiabetic and antioxidant effects. The research community has comprehensively described the importance of algal polysaccharides regarding their extraction, purification, and potential use in various sectors. However, regardless of all the intriguing properties and potency in the health sector, these algal polysaccharides deserve detailed investigation. Hence, the present review emphasizes extensively on the previous and latest developments in the extraction, purification, structural properties and therapeutic bioactivities of algal polysaccharides to upgrade the knowledge for further advancement in this area of research. Moreover, the review also addresses the challenges, prospective research gaps and future perspective. We believe this review can provide a boost to upgrade the traditional methods of algal polysaccharide production for the development of efficacious drugs that will promote human welfare.

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Thermal conductive analysis of restored teeth by finite element method

Cited by 9 publications

References 11 publications

An investigation into the importance of the periodontal ligament and alveolar bone as supporting structures in finite element studies

An investigation into the importance of the periodontal ligament and alveolar bone as supporting structures in finite element studies

The Influence of Restorative Dental Materials on Heat Transmission in Human Teeth

Perspective on the Therapeutic Applications of Algal Polysaccharides

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