Sealant STATE BOARD Exam Questions And Answers Graded A+!!

Describe the purpose of dental sealants: - ANS To prevent dental caries in the pits and fissures of teeth Explain the clinical indications for dental sealants: - ANS Sealants are indicated for teeth with deep pits and fissures, preferably in recently erupted teeth. Explain the clinical contraindications to dental sealants: - ANS Patient cooperation during sealant placement is very important. Proper placement requires a well-isolated, dry field. Pit - ANS A small fault found on the occlusal surface of posterior teeth Fissure - ANS Linear fault that is the result of non-coalescence of enamel Lobe - ANS A primary center for tooth development, ultimately forms cusps Cusp - ANS Pronounced elevation Incipient Caries - ANS Beginning stage of caries Remineralization - ANS Process of restoring minerals to the enamel Autopolymerization - ANS Chemical Cure Photopolymerization - ANS Light Cure Stenson's Duct - ANS aka: parotid duct-largest salivary gland. Provides 25% of total saliva. Located just below and in front of the ear. Pellicle Formation - ANS When saliva touches a tooth surface Dental Sealant - ANS Resin material applied to the pits and fissure of teeth Polymerization - ANS The process of changing a simple chemical into another substance that contains the same elements Self-cured - ANS Type of material that is polymerized by chemical reactions Light-cured - ANS Type of material that is polymerized by a curing light Unfilled Resin - ANS Sealant material that does not contain filler particles Microleakage - ANS Microscopic leakage at the interface of the tooth structure and the sealant or restoration Acrylate - ANS Salt or ester of acrylic acid Why are pits and fissures susceptible to caries? - ANS Fluoride is less effective in these areas & these areas are difficult to clean What are the ways for sealant materials to harden? - ANS Polymerization, light-curing, and self-curing Why is clear sealant material less desirable? - ANS It's more difficult to evaluate What is the difference between filled and unfilled sealants with regard to retention rates? - ANS There is no difference What is the range of shelf life for sealant materials? - ANS 18 to 36 months What safety precessions should be considered when placing sealants? - ANS Keep etchant off soft tissue and have patient wear eyewear What is the main cause of sealant failures? - ANS Moisture contamination Define etching: - ANS Process used to decalcify the superficial layers of enamel