Mcqs in dental materials by Gupta

1. The overriding goal of dentistry is toa. Maintain or improve the quality of life of the dental patientb. Maintain or improve the quality of life of the dentistc. Alleviate paind. Make money for the dentist

Answer: a (p. 4*)

Explanation

This can be done by preventing disease, improving mastication effi ciency, relieving pain, enhancing speech and improving appearance.

2. Which of the following is not a criterion for an ideal restorative material of choice?a. Biocompatible b. Permanent bond to the tooth structurec. Match the natural appearance of the tooth structured. Degenerate in a short period of time

Answer: d (p. 4)

Explanation

The material should be long lasting. Only in very specifi c clinical situations, it may be desirable for the material to degrade in a short period of time.

1 Overview of Dental Materials

* These page number references pertain to Philips’ Science of Dental Materials, 11th ed.

Chapter-01.indd 1Chapter-01.indd 1 6/1/2012 10:12:00 AM6/1/2012 10:12:00 AM

2 MCQs IN DENTAL MATERIALS

3. Which of the following is an example of auxiliary dental material?a. Cast metal b. Ceramic c. Gypsum products d. Amalgam

Answer: c (p. 6)

Explanation

Materials can be classifi ed as preventive, restorative and auxiliary materials. A further classifi cation according to the application, potential preventive benefi ts and durability is given on pages 5 and 6 of Philips’ Science of Dental Materials, 11th ed.

4. Dentistry as a specialty is believed to have begun in a. 5000 BC b. 4000 BCc. 3000 BC d. 2000 BC

Answer: c (p. 6)

Explanation

Around 2500 BC, the Phoenicians used gold wires and bands on the teeth. The fi rst book focused solely on dentistry was the Artzney Buchlein in 1530, and Charles Allen was the author of the fi rst dental textbook written in English, Operator for the Teeth, in 1685.

5. Who is considered as the father of modern dentistry?a. Pare b. Pierre Fauchard c. Pfaff d. Taveau

Answer: b (p. 6)

Explanation

Pierre Fauchard is considered as the father of modern dentistry and an academy has also been established in his honour. G.V. Black is also considered by the journal of operative dentistry as the father of modern dentistry for his phenomenal work on operative dentistry in 1908.


3OVERVIEW OF DENTAL MATERIALS

6. The fi rst seal of ADA acceptance was awarded in the year a. 1921 b. 1931c. 1941 d. 1951

Answer: b (p. 10)

Explanation

The ADA seal of acceptance is considered by the patients and dentist as an important symbol of dental product safety and effi ciency.

7. According to FDA, all implanted and life-saving devices are placed under which class of medical and dental items?a. Class I b. Class IIc. Class III d. Class IV

Answer: c (p. 13)

Explanation

Class I devices are low risk devices and they are subjected to general control. Class II devices are to meet performance standards established by FDA or appropriate standards from other authoritative bodies, such as ADA. Class III is the most stringent category which requires that the devices be approved for safety and effectiveness before they are marketed. All implanted and life-supporting devices are placed under this category.

8. The subcommittee under ISO TC 106 which deals with dental instruments isa. TC 106/SC 1 b. TC 106/SC 2c. TC 106/SC 3 d. TC 106/SC 4

Answer: d (p. 15)

Explanation

The SC 1 is for fi lling and restorative material, SC 2 for prosthodontic materials, SC 3 for terminology, SC 6 for dental equipment, SC 7 for oral hygiene products and SC 8 for dental implants.


4 MCQs IN DENTAL MATERIALS

9. The CE marking on the product label denotes that it isa. Certifi ed and of excellent qualityb. European mark of conformity with the essential requirements for that

productc. Ethiopian certifi cation of qualityd. American mark of conformity with the essential requirements for that

product

Answer: b (p. 17)

Explanation

From 1st January 1995, all the medical devices marketed in the European Union were mandated to carry the CE mark as conformity with the essential requirements set by the medical device directive.


Mcqs in dental materials by Gupta

Health & Medicine

Transcript of Mcqs in dental materials by Gupta