RDA Study Gui de 2024 Questions and Answers | 100% Complete an d Updated What is the portion of the tooth above the gum line? -Answer -The crown. What is the portion that extends into the jawbo ne? -Answer -The root. What is the strongest material in the body, and makes up the external portion of the crown, tapering off at the gum lines? -Answer -Enamel. What is the layer under the enamel and the bulk of the tooth root? -Answer -Dentin. What is the inner layer of the tooth, which supples nutrition and blood supply? -Answer -
Pulp or nerve tissue. What is a thin layer of the tooth on the outside of dentin on the root of the tooth? -
Answer -Cementum. How many roots and cusp does anterior teeth have? -Answ er-1 root and 1 cusp. How many roots and cusps does posterior teeth have? -Answer -2-3 roots and 2 -5 cusps of cusps depending of the tooth and location of tooth. How many roots does maxillary molars have? -Answer -3 roots. How many roots does mandibular mola rs have? -Answer -2 roots. How many surfaces does each tooth have? -Answer -5 surfaces. What does the surfaces allow the dentist or practitioner to do? -Answer -Identify what portion or the tooth is involved with a restoration, decay or other findings. What s urface is the size of the tooth that is closest to the midline, between the teeth? -
Answer -Mesial. What surface is the furthest away from the midline, also between the teeth? -Answer -
Distal. What term refers to the area between the teeth where their two su rfaces touch each other, while the embrasure is the area just outside of the contact point? -Answer -
Interproxima or contacts. What surface are those that are on the tongue side of the tooth? -Answer -Lingual. What surface refers to the lips? -Answer -Labial. What surface refers to the cheeks? -Answer -Buccal. What surface is the biting edge of the anterior teeth? -Answer -Incisal. What surface is the chewing surface on the posterior teeth? -Answer -Occlusal. What term is used to describe a cavity? -Answer -Caries/ decay. What is the cause of tooth decay? -Answer -Poor oral hygiene and poor nutritional choices. What is known as the begi nning stage of decay where the enamel has begun to decay but the cavity has not made its way completely through the enamel to the dentin? -
Answer -Incipient decay. What decay has reached through the enamel, into the dentin? -Answer -Overt decay. What decay i s when there are numerous overt cavities present during the same period of time, typically due to neglect? -Answer -Rampant decay. What is the initial inflammation of gum tissue caused by lack of oral hygiene, and is reversible? -Answer -Type I gingivitis. What occurs when gingivitis is untreated and results in the destruction of bone tissue and attached gingiva (periodontal ligaments)? -Answer -Periodontal disease.
Pulp or nerve tissue. What is a thin layer of the tooth on the outside of dentin on the root of the tooth? -
Answer -Cementum. How many roots and cusp does anterior teeth have? -Answ er-1 root and 1 cusp. How many roots and cusps does posterior teeth have? -Answer -2-3 roots and 2 -5 cusps of cusps depending of the tooth and location of tooth. How many roots does maxillary molars have? -Answer -3 roots. How many roots does mandibular mola rs have? -Answer -2 roots. How many surfaces does each tooth have? -Answer -5 surfaces. What does the surfaces allow the dentist or practitioner to do? -Answer -Identify what portion or the tooth is involved with a restoration, decay or other findings. What s urface is the size of the tooth that is closest to the midline, between the teeth? -
Answer -Mesial. What surface is the furthest away from the midline, also between the teeth? -Answer -
Distal. What term refers to the area between the teeth where their two su rfaces touch each other, while the embrasure is the area just outside of the contact point? -Answer -
Interproxima or contacts. What surface are those that are on the tongue side of the tooth? -Answer -Lingual. What surface refers to the lips? -Answer -Labial. What surface refers to the cheeks? -Answer -Buccal. What surface is the biting edge of the anterior teeth? -Answer -Incisal. What surface is the chewing surface on the posterior teeth? -Answer -Occlusal. What term is used to describe a cavity? -Answer -Caries/ decay. What is the cause of tooth decay? -Answer -Poor oral hygiene and poor nutritional choices. What is known as the begi nning stage of decay where the enamel has begun to decay but the cavity has not made its way completely through the enamel to the dentin? -
Answer -Incipient decay. What decay has reached through the enamel, into the dentin? -Answer -Overt decay. What decay i s when there are numerous overt cavities present during the same period of time, typically due to neglect? -Answer -Rampant decay. What is the initial inflammation of gum tissue caused by lack of oral hygiene, and is reversible? -Answer -Type I gingivitis. What occurs when gingivitis is untreated and results in the destruction of bone tissue and attached gingiva (periodontal ligaments)? -Answer -Periodontal disease.
