Determination of some compressive properties of human enamel and dentin

Stanford, John W.; Paffenbarger, George C.; Kumpula, John W.; Sweeney, W.T.

doi:10.14219/jada.archive.1958.0194

Cited by 68 publications

(37 citation statements)

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“…8 The other factors are personnal and organizational attitude towards interventions like hand washing, cost containment and logistical barriers. 9 The education regarding HAIs has a positive impact on retention of KAP in all categories of health workers to prevent infections. 10 The purpose of our study was to understand the level of KAP among the nursing students regarding HAIs in the Western Region of Nepal.…”

Section: Introductionmentioning

confidence: 99%

Knowledge, Attitude and Practice of nursing students on Hospital Acquired Infections in Western region of Nepal

Paudel

Ghosh

Adhikari

2016

J Coll Med Sci-Nepal

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Background & Objectives: Hospital-acquired infections (HAIs) are a common problem and challenge faced by hospitals in all countries around the world. Nurses are an important part of the healthcare team that plays a unique role in the control of HAIs. Compliance on the part of healthcare workers (HCWs) including nurses with standard precautions has been recognized as being an efficient means to prevent and control HAIs. The present study was conducted with objective of understanding the level of Knowledge, attitude and practice (KAP) regarding HAIs among nursing students in the Western Region of Nepal. Materials & Methods: This descriptive cross-sectional study was conducted among nursing students posted in different wards of two hospitals of Pokhara. A self administered questionnaire containing different set of questions regarding knowledge, attitude and practice on HAI were used for data collection. Results: Among the total participants in the study 97% of the participants considered that prevention of HAIs were a valuable part of nurses' role but only 89% had received formal training regarding hand hygiene. The results show that 74% of the participants had good knowledge regarding HAIs. 82% of the participants felt that they would be less likely to transmit infection to the patient if they performed handhygiene. 66% of them identified that hand hygiene agents were not readily available in current settings. Regarding practice, only 6% performed hand hygiene before patient contact. Conclusion: The nursing students had good knowledge regarding HAIs that was reflected in their attitude and practice on hand hygiene for the prevention of HAIs. However there is the need of regular training and performance feedback regarding hand hygiene and the hospital environment should be handhygiene friendly with easily accessible to sinks and other facilities.

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Section: Introductionmentioning

confidence: 99%

Knowledge, Attitude and Practice of nursing students on Hospital Acquired Infections in Western region of Nepal

Paudel

Ghosh

Adhikari

2016

J Coll Med Sci-Nepal

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“…Enamel and dentine's mechanical properties have been subject of many studies [20][21][22][23][24][25]. Most of the authors tested either enamel or dentine in order to find the modulus of elasticity and the hardness.…”

Section: Discussionmentioning

confidence: 99%

Novel non-invasive reinforcement of MOD cavities on endodontically treated teeth

Daher

Feilzer

Krejci

2016

Journal of Dentistry

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A B S T R A C TObjectives: To evaluate the biomechanical influence of reconnecting the buccal and lingual walls of endodontically treated lower molar with a large MOD cavity. Methods: 3D models were created from a micro-CT scan of an extracted intact lower human molar. Finite element analysis was then used to compare the stress distribution and displacement of the structures between different models: Unrestored MOD on ETT (Unrest), MOD on ETT restored with composite resin (Norm), MOD on ETT reinforced with a non-invasive ring (Ring) and intact tooth as the control (Int).Results: This study showed that the Unrest model presented the highest stress values at the cervical level. The non-invasive Ring model showed the lowest stress values at the cervical level, and the lowest deflection of the cusps. Conclusions: Mechanically reconnecting the remaining tooth structures has a direct positive effect on stress distribution and deformation of the remaining structures. Clinical relevance: Reinforcing ETT in a non-invasive direct approach is efficient in terms of preserving sound tooth structures, reducing the time of treatment and eliminating the laboratory steps required to create the restorations.

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“…9 Since 1950 the studies on mechanical properties of human teeth have appeared in joumals and magazines successively [2][3][4][5][6][7][8][9][10][11][12][13] Human teeth are very small and the specimens used for testing are even smaller 9 It is very difficult to measure the deformations and strains on such small specimens by conventional techniques. Therefore, a new technique must be worked out.…”

Section: Figmentioning

confidence: 99%

“…The available methods reported include: strain measuring gauge [2] , Moir~ fringe [14] , ultrasonic technique [15] , resistance-strain gauge [3] , laser technique [a] , etc. In this paper, the displacement sensor technique was used.…”

Section: Figmentioning

confidence: 99%

Elastic modulus of human cementum

et al. 1999

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Abstract:In this paper, the elastic modulus measuring of human cementum is studied. The average value of the elastic modulus measured from 100 specimens is E = 2.398 • 0.455 GPa. The specimens were made from incisors, canines, bicuspids, and molars 9 The testing was done on type AG--IOTA electronicmechanical universal material testing machine. It was verified by mathematical statistics that the probability distribution of measured data obeys normal distribution 9By the great difference in elastic moduli between cementum and dentin it is explained that 1. why more cementum grows at the root apexes ; 2. the behavior of cementum must be taken into consideration when the stress analysis for teeth is carried out.

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Determination of some compressive properties of human enamel and dentin

Cited by 68 publications

References 1 publication

Knowledge, Attitude and Practice of nursing students on Hospital Acquired Infections in Western region of Nepal

Knowledge, Attitude and Practice of nursing students on Hospital Acquired Infections in Western region of Nepal

Novel non-invasive reinforcement of MOD cavities on endodontically treated teeth

Elastic modulus of human cementum

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