Podcast
Questions and Answers
What term describes the ideal alignment of teeth when the jaws are closed?
What term describes the ideal alignment of teeth when the jaws are closed?
- Overjet
- Normal occlusion (correct)
- Malocclusion
- Crossbite
Which characteristic is least indicative of normal occlusion in the context of veterinary dentistry?
Which characteristic is least indicative of normal occlusion in the context of veterinary dentistry?
- Symmetrical dental arcade
- Scissor bite formation of incisors
- Even wear of incisors
- Crowding of premolars (correct)
In veterinary dentistry, what is the primary functional consequence of a deviation from normal occlusion?
In veterinary dentistry, what is the primary functional consequence of a deviation from normal occlusion?
- Increased risk of periodontal disease due to abnormal plaque retention
- Accelerated tooth wear and potential temporomandibular joint (TMJ) issues
- Inefficient mastication, potentially leading to digestive issues
- All of the above (correct)
What is the term used to describe a situation where the lower incisors protrude in front of the upper incisors?
What is the term used to describe a situation where the lower incisors protrude in front of the upper incisors?
Given an animal with a unilaterally shortened mandible, predisposing it to abnormal dental attrition and potential TMJ disorder, which intervention strategy represents the most comprehensive approach to addressing the multifaceted consequences stemming from the deviation from normal occlusion, considering long-term functionality and patient comfort?
Given an animal with a unilaterally shortened mandible, predisposing it to abnormal dental attrition and potential TMJ disorder, which intervention strategy represents the most comprehensive approach to addressing the multifaceted consequences stemming from the deviation from normal occlusion, considering long-term functionality and patient comfort?
Which of the following is the MOST accurate definition of a malocclusion?
Which of the following is the MOST accurate definition of a malocclusion?
Which factor does NOT directly contribute to dental interlock and normal jaw growth?
Which factor does NOT directly contribute to dental interlock and normal jaw growth?
A veterinarian observes crowding, rotation, and bowing of the mandible in a canine patient. This suggests which type of malocclusion?
A veterinarian observes crowding, rotation, and bowing of the mandible in a canine patient. This suggests which type of malocclusion?
A client reports that their puppy's adult maxillary canine tooth is erupting rostral to the retained deciduous tooth. Which type of malocclusion is MOST likely to occur because of this?
A client reports that their puppy's adult maxillary canine tooth is erupting rostral to the retained deciduous tooth. Which type of malocclusion is MOST likely to occur because of this?
What is 'prognathia' in veterinary dentistry?
What is 'prognathia' in veterinary dentistry?
Which term describes a tooth that is displaced towards the cheek?
Which term describes a tooth that is displaced towards the cheek?
A dog presents with a normal jaw length but has one incisor that is severely rotated. How should this be charted?
A dog presents with a normal jaw length but has one incisor that is severely rotated. How should this be charted?
Which malocclusion is characterized by a mandible that is shorter than normal, often leading to problematic positioning of the mandibular canines?
Which malocclusion is characterized by a mandible that is shorter than normal, often leading to problematic positioning of the mandibular canines?
What is the MOST likely treatment plan for a dog presenting with malocclusions?
What is the MOST likely treatment plan for a dog presenting with malocclusions?
An 8-week-old puppy presents with generalized enamel defects on its permanent teeth. Which of the following is the MOST likely cause?
An 8-week-old puppy presents with generalized enamel defects on its permanent teeth. Which of the following is the MOST likely cause?
Flashcards
Normal Occlusion
Normal Occlusion
The alignment of teeth when the jaws are closed, allowing proper function and aesthetics.
Teeth Alignment
Teeth Alignment
The arrangement of teeth in relation to each other, affecting bite and chewing efficiency.
Function of Normal Occlusion
Function of Normal Occlusion
Ensures effective biting, chewing, and speaking without pain or discomfort.
Aesthetic Importance
Aesthetic Importance
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Effects of Misalignment
Effects of Misalignment
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Malocclusion
Malocclusion
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Dental Interlock
Dental Interlock
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Skeletal Malocclusion
Skeletal Malocclusion
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Dental Malocclusion
Dental Malocclusion
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Prognathia
Prognathia
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Class I Malocclusion
Class I Malocclusion
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Class II Malocclusion
Class II Malocclusion
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Class III Malocclusion
Class III Malocclusion
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Class IV Malocclusion
Class IV Malocclusion
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Enamel Defects
Enamel Defects
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Study Notes
Malocclusion
- Misalignment of teeth can occur
- Can cause cosmetic issues or cause trauma (attrition, fracture, tooth death)
- Skeletal or tooth-related causes exist
- Proper functioning teeth are crucial for the pet
- Jaw growth is independent for each quadrant
- Proper mandible-maxilla relationship should be maintained
- Canine and incisor teeth relationship enables a "push-pull" system for jaw growth
Skeletal vs Dental Malocclusion
- Skeletal: Inherited jaw length or width discrepancies
- Animal birth defects can lead to crowding & rotation, or jaw shortening
- Extra space between premolars indicates, jaw lengthening and uneven canines
- Dental: Malposition of teeth pushing other teeth out of normal positions
- Retained deciduous teeth can lead to issues
- Timing of tooth eruption can be affected
- Eruptions might be early or late or misaligned in the jaw.
Terminology (Jaw):
- Prognathia: One jaw is positioned forward compared to the other
- Retrognathia: One jaw is positioned backward compared to the other
- Brachygnathia: Shortened jaw
Tooth Position Terminology
- Mesio: Towards midline
- Disto: Away from midline
- Labio: Towards lips
- Bucco: Towards cheek
Malocclusions Classification
- Class I: Normal jaw length with teeth misalignment
- Class II: Mandible shorter than normal
- Class III: Mandibular prognathism or maxillary brachygnathism
- Class IV: Uneven jaw lengths
MAL Classifications
- MAL 1: Overall normal occlusion except for some teeth
- MAL 2: Mandibular is shorter than normal
- MAL 3: Mandibular prognathism
- MAL 4: Teeth misalignment in maxilla and mandible, or "wry bite"
Developmental Conditions
- Structural enamel defects: Hereditary (amelogenesis imperfecta) or environmental (trauma or disease)
- Affected deciduous teeth: Problems during days 42 of gestation to 15 days post partum
- Affected permanent teeth: Problems during 2 weeks to 12 weeks post partum (e.g., from distemper)
- Localized: Few teeth affected; typically due to trauma
- Generalized: Most teeth affected; from fever or systemic disease
- Clinical signs: Hypocalcified, hypoplastic enamel, enamel sloughing off, soft enamel requiring extra care
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Description
This lesson explores malocclusion in animals, which involves the misalignment of teeth, leading to cosmetic problems and trauma. It covers skeletal causes related to inherited jaw discrepancies and dental causes due to tooth malposition or retained deciduous teeth. Proper jaw growth and tooth eruption timing are crucial for dental health.
