Chapter 2 Flashcards
What is the process used to achieve mechanical, chemical, and bonding retention?
The process involves various techniques and materials that ensure the retention of dental restorations.
What factors determine successful adhesion?
Factors include wettability, viscosity, film thickness, and surface characteristics.
What is microleakage?
Microleakage refers to the small gaps that can occur at the interface of a restoration and tooth structure, potentially leading to recurrent decay and postoperative sensitivity.
What is biocompatibility?
Biocompatibility is the ability of a material to benefit the patient without adversely affecting living tissue.
Why may requirements for biocompatibility fluctuate?
Requirements may fluctuate due to varying patient needs and advancements in material science.
What are the three visible light wavelengths sensed when recognizing color?
The three wavelengths correspond to red, green, and blue light.
How is tooth color described?
Tooth color is described in terms of hue, value, and chroma.
Why is detection of restorations important?
Detection is crucial for assessing the integrity and longevity of dental restorations.
What challenges are presented by the oral environment?
Challenges include moisture, differing stresses, temperatures, and acid levels.
What are the requirements for materials used in dentistry?
Materials must be biocompatible, durable, nonreactive in acid or alkaline conditions, compatible with other materials, and esthetically acceptable.
What are the classifications of dental materials?
Dental materials are classified as preventive/therapeutic, restorative, and auxiliary materials.
Why is glass ionomer cement considered therapeutic?
Glass ionomer cement is therapeutic due to its ability to release fluoride and bond to tooth structure.
What must be considered when developing new dental materials?
Biocompatibility, along with short-term and long-term functionality, must be considered.
What is biomechanics in the context of dental materials?
Biomechanics is the application of engineering principles to biological systems, affecting the function and wear of dental materials.
What can excessive wear of a material indicate?
Excessive wear may be due to variations in forces applied to the material.
