Physical and mechanical properties of dental materials 1 - B81479 (elective subject)

• Title: Fyzikální a mechanické vlastnosti materiálů pro zubní lékařství 1
• Guaranteed by: Department of Dental Medicine First Faculty of Medicine Charles University and General University Hospital in Prague (11-00770)
• Faculty: First Faculty of Medicine
• Actual: from 2022 to 2024
• Semester: winter
• Points: 3
• E-Credits: 3
• Examination process: winter s.:
• Hours per week, examination: winter s.:0/20, C [HS]
• Extent per academic year: 20 [hours]
• Capacity: 6
• Min. number of students: 4
• 4EU+: no
• Virtual mobility / capacity: no
• State of the course: taught
• Language: English
• Teaching methods: full-time
• Additional information: http://www.vus.cz
• Note: course can be enrolled in outside the study plan; enabled for web enrollment
• Guarantor: MDDr. Antonín Tichý, Ph.D.; RNDr. Pavel Bradna, CSc.
• Attributes: Lékařství; Teoretický předmět; Zubní lékařství
• Pre-requisite : {podmínka - zkouška z anatomie}

Annotation

The course is to acquaint students with principal properties and practical understanding of impression material properties. Students will evaluate the effect of mixing ratio on setting time of alginate and C-silicone impression materials, assess significance of colour change phase indication and its sensitivity to water hardness and mixing ratio. They will characterize detail reproduction (alginate, C and A silicone), dimensional changes of impression materials after setting and their accuracy measured on simple gypsum models. Participants will be provided with basic information on response of impression materials to stress and wil determine elastic (reversible) and permanent (irreversible) deformations as measures of visco-elastic properties of impression materials.

Last update: BRA08599 (05.09.2008)

Literature

Literature: lectures, seminaries, books e.g.: McCabe J: Applied Dental Materials (Blackwell publishing), Craig RG: Dental Materials - Properties and Manipulation, Mosby edit), Gladwin M: Clinical Aspects of Dental Materials, Lippincott Williams and Wilkins edit) etc.

Corresponding text including theoretical bacground, instructions and procedures to any exercise are available at the teacher(P. Bradna).

Last update: BRA08599 (12.06.2008)

Syllabus

Lesson 1.
Effect of water hardness, temperature and mixing ratio on setting time and colour changes of alginate impression materials, the effect of mixing ratio on setting C-silicon impression materials.
Lesson 2.
Dimensional changes and detail reproduction of impression materials.
Lesson 3.
Accuracy of alginate and silicone impression materials.
Lesson 4.
Visco-elastic properties of impression materials, measurement of elastic recovery and plastic deformation etc.

The topic of the exercises might be modified according to specific student interests and teaching demands.


To receive credit: 90 % presentation, prepare exercise reports and pass the final test.

The course is a continuation of B81323.

Last update: Bradna Pavel, RNDr., CSc. (15.07.2019)