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Static occlusion
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Centric occlusion
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Dental Occlusion
Occlusion
| Question | Answer |
|---|---|
| Static occlusion | when the jaws are closed in centric occlusion |
| Centric occlusion | position of the jaws that affords the greatest interdigitation of the teeth; the habitual way that the teeth come together; |
| Normal occlusion | all teeth in the maxillary arch are in maximum contact with all the teeth in the mandibular arch; maxillary teeth slightly overlap mandibular teeth |
| Malocclusion | Any deviation from physiologically acceptable relationship of the maxillary arch and/or teeth to the mandibular arch/ teeth; |
| Three facial profiles: | Mesognathic; Retrogranthic, and Prognathic |
| Characterize mesognathic facial profile | Mesognathic - slightly protruding jaws which give the face a flat outline |
| Characterize Retrognathic facial profile | Prominent maxilla, and mandible posterior to its normal position |
| Prognathic | Prominent, Protruded mandible |
| Angle's Classification of Permanent Teeth... Permanent teeth are classified based on... | Based on relationship of Maxilla to mandible; specifically the maxillary molars to mandibular molars |
| What teeth are used to classify occlusion of the permanent dentition | Maxillary 1 molars and mandibular 1st molars |
| If the 1st molars are missing what teeth are then used in classification of the permanent dentition? | Maxillary cuspid |
| What are the 3 classes of Angle's Classification | Class I - Neutroclusion, ClassII - Distoclusion; Class III - Mesioclusion |
| Class I neutroclusion corresponds to what facial profile? | Normal/ Mesognathic |
| What is the relationship of teeth in Class I Neutroclusion | MB cusp of the maxillary 1st molar should be aligned with the MB groove of the mandibular 1st molar |
| If 1st molar(s) are missing what is the relationship of teeth in Class I Neutroclussion? | If 1st molar(s) are missing determine by cuspids. Maxillary cuspid should align between the mandibular cuspid and 1st premolar; |
| Class II Distoclusion can be associated with what facial profile? | Retrognathic |
| What is the relationship of teeth in Class II Distoclusion | The MB cusp of the maxillary 1st molar is anterior to the MB groove of the mandibular 1st molar by a cusp width. |
| If 1st molar(s) are missing what is the relationship of teeth in Class II Distoclusion | If 1st molar(s) are missing; the maxillary cuspid is anterior to the interproximal space between the mandibular cuspid and premolar |
| 2 Divisions in Class II Distoclusion | Division I: Maxillary anterior teeth are protruded; Div.II: 1 or more of the maxillary anterior teeth are retruded; |
| Class III Mesioclusion characterized with what facial profile | Prognathic |
| What is the relationship of teeth in Class III Mesioclusion | The MB cusp of the maxillary 1st molar is distal to the MB groove of the mandibular 1st molar by a cusp width; |
| If 1st molar(s) are missing what is the relationship of teeth in Class III Mesioclusion | Maxillary cuspid is distal to the interproximal space between the mandibular cuspid and 1st premolar; |
| Statement: Record occlusion on both sides of the mouth | True |
| Statement: Record occlusion measuring it on one side of the mouth only | False. record occlusion on both sides of the mouth |
| Statement: Pt may have different occlusions on opposite sides of the mouth | True. |
| Pt can't have different occlusion on opposite sides of the mouth | False. Pt can have different occlusions on opposite sides of the mouth; |
| Types of Crossbites | Anterior and Posterior |
| Anterior Crossbite | Maxillary Incisors are lingual to mandibular incisors |
| Posterior Crossbite | Maxillary or mandibular posterior teeth that are lingual or facial to their normal position |
| Malrelations of teeth: edge to edge | Incisal surfaces of maxillary anterior teeth occlude with the incisal surfaces of the mandibular anterior teeth, instead of overlapping |
| Malrelations of teeth: end to end | Molars and premolars occlude cusp to cusp; |
| Open Bite | Lack of occlusal or incisal contact between maxillary and mandibular teeth |
| Overjet | Mandibular anterior teeth are lingual to the maxillary anterior teeth; Horizontal measurement between maxillary and mandibular teeth; |
| Underjet | Maxillary anterior teeth are lingual to the mandibular anterior teeth; Horizontal measurement between maxillary and mandibular teeth |
| Overbite can be: | Normal, Moderate, Severe |
| Normal overbite | incisal edge of maxillary incisors within the incisal third of the mandibular incisors |
| Moderate overbite | incisal edge of maxillary incisors within the middle third of the mandibular incisors |
| Severe overbite | incisal edge of maxillary incisors within the cervical third of the mandibular incisors; |
| Labioversion | Tooth positioned labial to normal |
| Linguoversion | Tooth positioned lingual to normal |
| Buccoversion | tooth positioned buccal to normal |
| Supraversion | Also termed supraeruption or hypererupsion; erupted above the line of occlusion; associated with missing teeth; |
| Torsoversion | turned or rotated tooth |
| Infraversion | tooth positioned below the line of occlusion |
| Primary occlusion. Normal (ideal) | Normal(ideal) w/primate spaces-a diastema or gap in tooth row occasionally observed in a primary dentition. Max primate spaces accomod. the mand canines when teeth are in the occlusion. Mand primate spaces accomod. max canines when teeth are in occlusion. |
| What are primate spaces. | Diastema or gap in tooth row occasionally observed in primary dentition. Max primate spaces accom mand canines when teeth are in occlusion; mand primate spaces accomodate max canines when teeth are in occlusion |
| Relationship of teeth in normal (ideal) primary occlusion | MB cusp of the primary 2nd molar occludes with the B groove of the primary mand 2nd molar; Canine relationship: Cusp tip of primary maxillary cuspid occludes with the interproximal space of the primary mandibular 1st molar and primary mand cuspid. |
| Statement: Angle's Classification applies only to permanent dentition | TRUE |
| Flush terminal plane characteristic of ... | Primary occlusion: distal surfaces of the maxillary and mandibular primary 2nd molars are located in the same vertical plane; End-to-end occlusion |
| What are the three variations of the abnormal primary occlusions? | 1)Flush terminal plane; 2)Distal step 3)Mesial or terminal step |
| Distal step primary dentition | Distal surface of the mandibular primary molar is distal to the distal surface of the maxillary primary molar; |
| Mesial or Terminal Step primary dentition | The distal surface of the mandibular primary molar is mesial to the distal surface of the maxillary primary molar. |
| Supraversion is also termed ... | Hypereruption |
| Supraversion or Hypereruption is associated with | missing teeth |
Created by:
EdmondDantes