Pit and Fissure state board quiz review️ Exam Questions And Answers

Child low caries risk - ANS No new or incipient caries in the past year Adult low caries risk - ANS No new or incipient caries ; no more than one recurrent caries in the last 3 years Child moderate caries risk - ANS One new sight of caries in the past year or any of the following: Deep pits/fissures, Family with high caries rate, History of caries, Frequent sugar exposure, Irregular dental visits, Inadequate dental visits, Inadequate fluoride intake, Compromised oral hygiene. Adult moderate caries risk - ANS One or two new sight caries in the past 3 years or any of the following: History of rampant caries, Deep pits/fissures, Frequent sugar exposure, Decreased salivary flow, Irregular dental visits, Inadequate fluoride intake. Child high caries risk - ANS 2 or more caries in the past 2 years or 2 or more of the following: Deep pits/fissures, Family with high caries rate, History of caries, Frequent sugar exposure, Irregular dental visits, Inadequate dental visits, Inadequate fluoride intake, Compromised oral hygiene. Adult high caries risk - ANS 3 or more caries in the past 3 years or 2 or more of the following: History of rampant caries, Deep pits/fissures, Frequent sugar exposure, Decreased salivary flow, Irregular dental visits, Inadequate fluoride intake. Describe the factors that contribute to caries formation - ANS pits and fissures less then 1MM wide, Enamel is thinner at the base of the fissure Sugar, Asids, Genetics, (Diet, oral hygean, Pits and fissures, low fluoride intake, Dry mouth Xerostomia, low saliva flow) Define fissure - ANS Linear fault that is a result of non-coalescence of enamel Define pit - ANS A small fault found on the occlusal surface of posterior teeth: also on the buccal and lingual surface of anterior and posterior teeth. What are the causes of caries - ANS Caries is a transmissible bacterial infection. The two specific groups of bacteria in the mouth that are responsible for caries are the mutans streptococci (MS) (Streptococcus mutans) and the lactobacilli (LB). Plack, asid, What are incipient caries - ANS Demineralization or Decalifation the loss of calcium and phosphate from the enamel. Beginning stage of caries, Affects only enamel, Decalcifies and progresses, If progress is halted the tooth can repair itself (remineralization) Describe remineralization - ANS Can accur from the absorption of calcium and phosphorus found in saliva, Restores minerals to enamel, Can accur from flouride and sealant treatment. What is the criteria for selecting teeth for sealant placement? - ANS Tooth has no caries or fillings Tooth age: recently erupted tooth Tooth type: molars or premolar Occlusal morphology: deep, retentive, narrow Deep pits and fissures Recent caries activity: signs of softening or opacity in pit / fissure General caries activity: intact occlusal surface, incipient lesion in the pit / fissure Availability of other preventive measures: Pt receives fluoride but still caries active Who can legally place sealants in California - ANS DDS RDH, RDHAP under general supervision. RDAEF can perform this procedure under direct supervision RDA practicing in a public health setting, after completing a Board approved 16 hour course may perform this procedure. (Supervision is determined by the DDS) What were the problems with sealant materials when they first came out? - ANS There were early problems with retention. It wasn't until the bisphenol A-glycidyl methacrylate resins were first introduced that satisfactory retention rates were reported. What are the characteristics of etchant - ANS 35%-50% ortho-phosphoric acid, liquid or gel, both have comparable results in bond strength liquid flows well, gel can be better controlled What are the techniques that are used during placement of sealants - ANS From Lab: review patient (Pt) /medical history Seat Pt and give goggles Coronal polish teeth to be sealed (use phophy with out fluoride) Rinse Isolate teeth Dry Etch tooth for 15 sec Rinse for 20 sec Dry for 20 sec Re-isolate Re-dry if needed Apply primadry Dry for 5 sec For in class call over instructor Apply sealant Light cure for 20 sec Check sealant with explorer Repeat on other teeth Check occlusion with articulating paper Adjust with cleoid/discoid or white stone if needed Rinse Floss For class call over instructor What are the characteristics of priming/drying agent - ANS Contains a priming agent which lowers the surface tension of enamel and minimizes the incident if microleakage. 99% ethyl alochol, What is photopolymerization - ANS (Light cure) Light-cured: single system (premixed) No Mixing Longer working time Longer quadrant placement Will cure in ambient light if not protected. More popular than the chemically cured material.