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ORLPTD1 > CHAPTER IV: DENTAL ANOMALIES > Flashcards

CHAPTER IV: DENTAL ANOMALIES Flashcards

1
Q

these are individual teeth which are unerupted because of lack of eruptive force

A

Embedded teeth

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2
Q

There is the initiation stage, and tooth development inside the jaw area, and the tooth is fully formed already, but it fails to erupt inside the oral cavity due to lack of eruptive forces.

A

Embedded teeth

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3
Q

Usually, during the root formation, the tooth starts to move out from the oral cavity. However, here there is no movement or eruptive forces.

A

Embedded teeth

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4
Q

It only continues with the tooth development and root formation.

A

Embedded teeth

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5
Q

a tooth or teeth that fail to erupt either partially or completely because of obstruction by some physical barriers

A

Impaction

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6
Q

There is completion of tooth root development, and there is erupted force, but there are some barriers that will stop the tooth from coming out on the oral cavity.

A

Impaction

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7
Q

Causes of Impaction

A

physical barriers

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8
Q

3 Causes of Impaction

A
  1. Lack of space due to crowding of the teeth
  2. Rotation of the tooth bud
  3. Density of the overlying tissue
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9
Q

procedure in helping the impacted 3rd molar or erupting 3rd molar to cut on the overlying tissue.

A

OPERCULECTOMY

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10
Q

procedure of removal of impacted 3rd molar or all impacted teeth.

A

ODONTECTOMY

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11
Q

FREQUENCY OF IMPACTED TEETH:

A
  1. Mandibular 3rd molar (Most common)
  2. Maxillary 3rd molar
  3. Maxillary Canine
  4. Mandibular Canine
  5. Mandibular Premolar
  6. Maxillary Premolar
  7. Maxillary Central Incisor
  8. Maxillary Lateral Incisor
    → Numbers 4-8 are rare cases of impacted tooth
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12
Q

Relation of Impacted 3rd Molar to the Ramus of the Mandible and 2nd Molar there is sufficient amount of space between the ramus of the mandible and the distal surface of the 2nd molar for the accommodation of the mesiodistal diameter (width) of the crown of the 3rd molar.

A

Class I

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13
Q

the space between the ramus of the mandible is less than the mesiodistal diameter of the crown of the 3rd molar

A

Class II

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14
Q

all or most of the 3rd molar is located in the ramus of the mandible.

A

Class III

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15
Q

highest portion of the impacted molar is in level with or above the occlusal line of the second molar

A

Position A

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16
Q

highest portion of the impacted molar is below the occlusal line but above the cervical line of the second molar

A

Position B

17
Q

highest portion of the impacted molar is below the cervical line of the second molar

A

Position C

18
Q

if the impacted 3rd molar is like that of the position of the 2nd molar, we call it vertical direction. It is also applicable on the Maxillary 3rd Molars.

A

Vertical

19
Q

forming at least 15 degrees angle from the long axis of the 2nd molar to the position of the mandibular impacted 3rd molar. 15 degree angle to 90 creating a right angle

A

Horizontal

20
Q

going outside or away from the oral cavity.

A

Inverted

21
Q

creating at least a 45 degree angle from the long axis of the 2nd molar Towards the midline.

A

Mesioangular

22
Q

creating at least a 45 degree angle from the long axis of the 2nd molar. Away from the midline

A

Distoangular

23
Q

the occlusal line of the impacted 3rd molar is towards the buccal area

A

Buccoangular

24
Q

the occlusal line of the impacted 3rd molar is towards the lingual area.

A

Linguoangular

25
Q

no bone or a very thin partition of the bone exist between the maxillary 3rd molar and maxillary sinus

A

Sinus Approximation (SA)

26
Q

2mm or more of bone exist between the impacted maxillary 3rd molar and the maxillary sinus

A

No Sinus Approximation (SA)

27
Q

Green discoloration that traverse and crosses the impacted 3rd molar; traverses from the ramus of the mandible towards the body of the mandible

A

Inferior Alveolar Canal

28
Q

Impacted canine located in the palate

A

Class I

29
Q

Impacted cuspid located in the labial and buccal surface of the maxilla

A

Class II

30
Q

Impacted cuspids located in both the palatine and maxillary bone

A

Class III

31
Q

impacted cuspid located in the alveolar process usually vertically between incisor and first bicuspid

A

Class IV

32
Q

impacted canine is located in an edentulous maxilla

A

Class V

ORLPTD1 (7 decks)

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