Podcast
Questions and Answers
What is a common material used for custom-made mouth protectors?
What is a common material used for custom-made mouth protectors?
Which factor is NOT associated with the preference for custom-made mouth protectors?
Which factor is NOT associated with the preference for custom-made mouth protectors?
How long is the typical mixing time for amine-accelerated sealants?
How long is the typical mixing time for amine-accelerated sealants?
What is one of the main types of injuries that custom-made mouth protectors aim to prevent?
What is one of the main types of injuries that custom-made mouth protectors aim to prevent?
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Which of the following statements regarding sealants is incorrect?
Which of the following statements regarding sealants is incorrect?
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In which sport were most injuries reported to occur when athletes were not wearing mouth protectors?
In which sport were most injuries reported to occur when athletes were not wearing mouth protectors?
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What thickness range do most mouth protectors have?
What thickness range do most mouth protectors have?
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What is a characteristic of the reapplication of sealant to correct defects?
What is a characteristic of the reapplication of sealant to correct defects?
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What is the primary purpose of applying fluoride gels?
What is the primary purpose of applying fluoride gels?
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Why are pit and fissure sealants applied to posterior teeth?
Why are pit and fissure sealants applied to posterior teeth?
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Which fluoride product can cause staining when used?
Which fluoride product can cause staining when used?
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What pH range is considered effective for minimizing acid etching of restorative materials?
What pH range is considered effective for minimizing acid etching of restorative materials?
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What is a recommended application time for APF gels to enhance effectiveness?
What is a recommended application time for APF gels to enhance effectiveness?
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What secondary function can mouth protectors provide?
What secondary function can mouth protectors provide?
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What is one of the compositions used in acidulated phosphate-fluoride (APF) gels?
What is one of the compositions used in acidulated phosphate-fluoride (APF) gels?
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Which type of preventive dental material is contraindicated for patients with tooth sensitivity?
Which type of preventive dental material is contraindicated for patients with tooth sensitivity?
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Which of the following best describes the viscosity of an effective fluoride gel?
Which of the following best describes the viscosity of an effective fluoride gel?
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Which of the following is a feature of the thixotropic fluoride product mentioned?
Which of the following is a feature of the thixotropic fluoride product mentioned?
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What is a common property of fluoride varnishes used in dental applications?
What is a common property of fluoride varnishes used in dental applications?
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What is the main benefit of fluoride ions in preventive dental materials?
What is the main benefit of fluoride ions in preventive dental materials?
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What common feature do fluoride gels, rinses, and varnishes share?
What common feature do fluoride gels, rinses, and varnishes share?
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Which material is used as a mouth protector?
Which material is used as a mouth protector?
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What property of sodium fluoride products makes them effective in dental care?
What property of sodium fluoride products makes them effective in dental care?
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Which of the following is a possible source of mouth protectors?
Which of the following is a possible source of mouth protectors?
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What is a primary purpose of sealants applied to teeth?
What is a primary purpose of sealants applied to teeth?
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What is a common factor contributing to the high incidence of dental caries in children aged 5 to 17 years?
What is a common factor contributing to the high incidence of dental caries in children aged 5 to 17 years?
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What should be done immediately after the application of APF gels?
What should be done immediately after the application of APF gels?
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What can cause incomplete enamel coalescence that leads to caries?
What can cause incomplete enamel coalescence that leads to caries?
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What type of burs can be used to prepare fissures for preventive resin restoration?
What type of burs can be used to prepare fissures for preventive resin restoration?
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Which of the following statements about fluoride and plaque control programs is true?
Which of the following statements about fluoride and plaque control programs is true?
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Why are rinses not recommended for children younger than 6 years after applying sealants?
Why are rinses not recommended for children younger than 6 years after applying sealants?
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What are APF gels used for in dental treatments?
What are APF gels used for in dental treatments?
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Which type of mouth protector is preferred by players?
Which type of mouth protector is preferred by players?
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What is a common issue with improperly fabricated custom-made protectors?
What is a common issue with improperly fabricated custom-made protectors?
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What is the result of increased thickness in a mouth protector?
What is the result of increased thickness in a mouth protector?
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What issue is likely expected with all types of mouth protectors?
What issue is likely expected with all types of mouth protectors?
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What process is used to form a mouth protector?
What process is used to form a mouth protector?
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What is a characteristic of polyurethanes compared to other materials?
What is a characteristic of polyurethanes compared to other materials?
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What common complaint might athletes have about harder mouth protector materials?
What common complaint might athletes have about harder mouth protector materials?
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What is often a complication during the impression process for custom-made protectors?
What is often a complication during the impression process for custom-made protectors?
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What is a characteristic of poly(vinyl acetate)-polyethylene materials?
What is a characteristic of poly(vinyl acetate)-polyethylene materials?
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What is the first step in the fabrication of mouth protectors?
What is the first step in the fabrication of mouth protectors?
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Which method is used to smooth the edges of the mouth protector?
Which method is used to smooth the edges of the mouth protector?
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What should the model be trimmed to before the thermoplastic material is formed over it?
What should the model be trimmed to before the thermoplastic material is formed over it?
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What is the purpose of heating the center of the sheet of thermoplastic material?
What is the purpose of heating the center of the sheet of thermoplastic material?
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How is the mouth protector adjusted if the fit is not correct after forming?
How is the mouth protector adjusted if the fit is not correct after forming?
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What is the final step in the fabrication process of mouth protectors?
What is the final step in the fabrication process of mouth protectors?
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What is done to the mouth protector before placing it in the athlete's mouth?
What is done to the mouth protector before placing it in the athlete's mouth?
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What position should the model be centered in during the vacuum forming process?
What position should the model be centered in during the vacuum forming process?
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Study Notes
Dental Materials: Preventative
- Studies show fluoride lowers dental caries
- Fluoride can be used as gels, trays, or varnishes
Fluoride Gels, Rinses, and Varnishes
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Composition:
- Acidulated phosphate fluoride (APF) gels: 2% sodium fluoride, 0.34% hydrogen fluoride, 0.98% phosphoric acid
- Sodium fluoride and stannous fluoride gels also available
- Varnishes containing 5% sodium fluoride are also available
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Properties:
- APF gels may cause tooth sensitivity and worsen it
- Neutral topical sodium fluoride foam, gels and rinses available
- One product is thixotropic, containing sodium fluoride and thickening agents (polyacrylic acid and a gum)
- pH adjusted between 6 and 8
- Stannous fluoride products are effective but can stain teeth
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Clinical Effectiveness:
- Clinical effectiveness varies by application method and frequency
Pit and Fissure Sealants
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Composition and Reaction (Light-cured):
- Primarily resins with light-activated polymerization (490 nm wavelength)
- One-component systems, no mixing needed
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Composition and Reaction (Self-cured):
- Two-component systems
- One component contains monomer and benzoyl peroxide initiator
- Another component contains diluted monomer with 5% organic amine accelerator
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Properties:
- Penetration into fissures and etched enamel improves retention
- Complete fissure filling can be challenging due to trapped air and debris
- Acid etching improves sealant retention by cleaning, improving wettability, and increasing surface area for bonding
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Clinical Significance:
- Sealants aim to prevent caries in pits and fissures by creating a protective barrier
- Fluoride and plaque control are not always effective in these areas
Mouth Protectors
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Types and Composition:
- Stock, mouth-formed, and custom-made
- Materials may include thermoplastics, poly(vinyl acetate)-polyethylene (EVA), polyurethane, rubber latex, and vinyl plastisol
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Advantages and Disadvantages of Mouth Protectors:
- Table provides comparisons based on fit, thickness, durability, comfort, ease of speaking, and cost
- Custom-made protectors are generally preferred by athletes, with advantages including superior fit, comfort, and cleanliness
Sealants: Manipulation
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Steps for applying sealants:
- Clean, etch, and dry the occlusal surface
- Apply sealant to pits and fissures
- Polymerize the sealant
- Finish the sealant, removing excess material
Sealant Properties
- Sealants should offer resistance to penetration with an explorer tip
- Defects corrected by repeating the procedure and applying sealant to faulty areas
- Fluoride applied after sealant polymerization
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Description
Test your knowledge on dental materials and the effectiveness of custom-made mouth protectors. This quiz covers various aspects, including sealants, fluoride applications, and sports-related injuries. Ideal for dental students or professionals looking to refresh their understanding.