Dental Materials Exam Update Latest
2024 Questions and Correct Answers
Rated A+
Dental materials - answer-study of the materials used in dentistry to
construct dental appliances and tooth restorations.
Goals of dental materials class: - answer--to understand the behavior
of materials
-to handle materials properly
-to assess & treat the patient
-to educate the patient
Enamel - answer-helps resist forces from biting, ruined by acid
Dentin - answer-provides strength, cushion to enamel
Periodontium - answer-supports entire tooth
Gingival tissue - answer-seals out harmful agents, forms a barrier
around tooth to keep in tact.
Oral tissues as biologic materials - answer-enamel
Dentin
Pulp
Periodontium
Gingival tissue
Restriction on materials use - answer--biting forces that may cause
fracture
-degradation of materials & teeth (corrosion)
-temperature changes (contracts & swells)
-biocompatibility (friendly to oral tissue)
-esthetics (patients want what look good)
,Need to understand how a dental material may affect the.. - answer-
oral environment.
Appliances & dentures need.. - answer-special care and treatment.
Earliest known use of dental materials : - answer-500 bc
Earliest known material used: - answer-gold
1000 ad: - answer-molten metal
1700's: - answer-1st dentures
Scientific research began in.. - answer-late 1800's
"trial & error era"
1st dental amalgam came to the u.s. in: - answer-1830
Then porcelain teeth..
Then gutta percha..[rubbery substance used for root canals]
Then zinc oxychloride..[cementing agent]
Dr. G.v. black - answer-father of modern dentist
How do we know which material to use? - answer--extensive research
-testing
-clinical use
-experiences
-educated decision making
"our need to keep current is.. - answer-vitally important to our
patients."
Standards are published by.. - answer-american national standards
institute (ansi)
Council on scientific affairs of the american dental association -
answer--evaluates dental drugs, materials, instruments, equipment
, -manufacturer responsible for data on product
-if approved, the product is "accepted" & can display seal
-food & drug administration
[not everything that the fda approves, the ada will approve]
Medical device amendments of 1976, class i: - answer-general;
implies registered & manufactured under good practices [prophy cups,
toothbrushes]
Medical device amendments of 1976, class ii: - answer-must meet
certain performance standards established by fda or ada [looks at
composition of materials, properties of materials, amalgam]
Medical device amendments of 1976, class iii: - answer-data must by
provided that ensures safety & efficacy (ability to be used successfully
& efficiently). Must be proven before marketing. [implants, bone
grafting material]
Classifications of dental materials - answer--by use
-by location of fabrication
-by longevity of use
Classification by use - answer-restorations
Crowns
Bridges
Complete & partial dentures
Impressions, casts, & models
Cements
Temporary materials
Preventive materials
Polishing materials
Implants
Specialty materials
Classification by location of fabrication - answer--direct restorative
materials
-indirect restorative materials
2024 Questions and Correct Answers
Rated A+
Dental materials - answer-study of the materials used in dentistry to
construct dental appliances and tooth restorations.
Goals of dental materials class: - answer--to understand the behavior
of materials
-to handle materials properly
-to assess & treat the patient
-to educate the patient
Enamel - answer-helps resist forces from biting, ruined by acid
Dentin - answer-provides strength, cushion to enamel
Periodontium - answer-supports entire tooth
Gingival tissue - answer-seals out harmful agents, forms a barrier
around tooth to keep in tact.
Oral tissues as biologic materials - answer-enamel
Dentin
Pulp
Periodontium
Gingival tissue
Restriction on materials use - answer--biting forces that may cause
fracture
-degradation of materials & teeth (corrosion)
-temperature changes (contracts & swells)
-biocompatibility (friendly to oral tissue)
-esthetics (patients want what look good)
,Need to understand how a dental material may affect the.. - answer-
oral environment.
Appliances & dentures need.. - answer-special care and treatment.
Earliest known use of dental materials : - answer-500 bc
Earliest known material used: - answer-gold
1000 ad: - answer-molten metal
1700's: - answer-1st dentures
Scientific research began in.. - answer-late 1800's
"trial & error era"
1st dental amalgam came to the u.s. in: - answer-1830
Then porcelain teeth..
Then gutta percha..[rubbery substance used for root canals]
Then zinc oxychloride..[cementing agent]
Dr. G.v. black - answer-father of modern dentist
How do we know which material to use? - answer--extensive research
-testing
-clinical use
-experiences
-educated decision making
"our need to keep current is.. - answer-vitally important to our
patients."
Standards are published by.. - answer-american national standards
institute (ansi)
Council on scientific affairs of the american dental association -
answer--evaluates dental drugs, materials, instruments, equipment
, -manufacturer responsible for data on product
-if approved, the product is "accepted" & can display seal
-food & drug administration
[not everything that the fda approves, the ada will approve]
Medical device amendments of 1976, class i: - answer-general;
implies registered & manufactured under good practices [prophy cups,
toothbrushes]
Medical device amendments of 1976, class ii: - answer-must meet
certain performance standards established by fda or ada [looks at
composition of materials, properties of materials, amalgam]
Medical device amendments of 1976, class iii: - answer-data must by
provided that ensures safety & efficacy (ability to be used successfully
& efficiently). Must be proven before marketing. [implants, bone
grafting material]
Classifications of dental materials - answer--by use
-by location of fabrication
-by longevity of use
Classification by use - answer-restorations
Crowns
Bridges
Complete & partial dentures
Impressions, casts, & models
Cements
Temporary materials
Preventive materials
Polishing materials
Implants
Specialty materials
Classification by location of fabrication - answer--direct restorative
materials
-indirect restorative materials
