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ot final
oral tissues final
| Question | Answer |
|---|---|
| On permanent MX central and lateral incisors, which junction of the proximal surface with the incisal edge forms a right/sharp angle? | mesioincisal |
| Which (extracted) incisors are the most difficult to identify as right or left? | Mandibular centrals |
| Permanent MX and MD canines often have a deeper depression on the _____________ surface of the root. | distal |
| The smallest tooth in the permanent dentition is the: | mandibular central incisor |
| When incisors first erupt the incisal ridge | has mamelons |
| The longest, most stable tooth in the mouth is the: | maxillary canine |
| The mesial surface of the crown is in line (even) with the mesial surface of the root on which of the following permanent teeth? | mandibular canine |
| Which of the following are the eruption dates for the permanent maxillary central incisor? | 7-8 years |
| Which of the following are the eruption dates for the permanent mandibular central incisor? | 6-7 |
| The MD central and lateral incisors have vertical depressions on both the mesial and distal surface. The depression on the distal surface is deeper than the one on the mesial. | TRUE |
| Which of the following are the eruption dates for the maxillary second premolars? | 10-12 yrs |
| Which of the following are the eruption dates for the mandibular first premolars? | 10-12 |
| Which of the following are the eruption dates for the mandibular second premolars? | 11-12 |
| When a mandibular second molar has three cusps, the names of these cusps are: | buccal, mesiolingual, distolingual |
| Which premolar has buccal and lingual cusps that are almost the same height? | Maxillary second |
| Which selection best describes the roots of the maxillary first premolar? | Two roots, one buccal and one lingual |
| The buccal cusp of a maxillary first premolar is longer than the buccal cusp of the second premolar. | True |
| The maxillary first premolar has a canine fossa. | false |
| Mandibular second molars often have two canals in each root. | False |
| A Cusp of Carabelli would be located on a maxillary first molar on the: | mesiolingual cusp |
| The permanent mandibular first molar usually has | two root canals in the mesial root, one in the distal |
| The mandibular molars are aligned in the alveolar bone in such a way that their crowns are: | tilted toward the distal and lingual |
| class traits of all molars | largest and strongest teeth in the mouth because of bulky crown size/root anchorage, three to five cusps will range from major cusps, minor cusps, and supplementary cusps. The maxillary molars have three roots, and the mandibular roots have two roots. |
| Which of the following are the first permanent teeth to erupt? | Mandibular first molars |
| Maxillary and mandibular first molars have a fifth or supplemental cusp. This additional cusp, the cusp of Carabelli, is located on the mesiolingual cusp tip. | The first statement is true; the second statement is false. |
| The roots of a maxillary molar are positioned | mesiobuccal, distobuccal, lingual |
| The largest and highest cusp on any maxillary molar is: | mesiolongual |
| Maxillary molars are non-succedaneous teeth. | true |
| Pulpal tissue cannot expand because the pulp is encased in hard dentinal tissue that makes expansion virtually impossible. | true |
| Teeth that erupt between 16 and 22 months of age are the deciduous | canines |
| When a tooth has no antagonist in the opposing arch, the tooth can | over-erupt,develop periodontal disease,develop dental caries,develop occlusal trauma |
| Deciduous roots are resorbed, they exfoliate, and permanent teeth erupt in their place. | True |
| The spaces that occur between deciduous canines, first molars, and second molars are: | Leeway spaces |