summary Flashcards
What are reasons for non-surgical treatment before surgical?
- To assess patient motivation
- non-surgical therapy may reduce some deep pockets
- stabilising condition will have better outcomes for surgery
Explain the pattern of distribution of decay in nursing bottle caries?
mandibular incisors are spared from decay as they are protected by the tongue
maxillary incisors are first to experience the cariogenic challenge and suffer the longest due to early eruption
teeth are affected in sequence of their eruption
What are causes of nursing bottle caries ?
bottles at night
prolonged breastfeeding
child holding milk in their mouth
sugar in bottles of milk
inappropriate use of bottles and feeding cups
what toothbrushing advice would you give for nursing bottle caries ?
1000ppm fluoride toothpaste
2x day - morning and night
small headed toothbrush with small bristles
brush for 2 minutes
wait at least 30 minutes after consumption of sugary foods
what special investigations are used for carious lower 6s?
bitewings
What indicates the suitable time for extracting 6s ?
bifurcation formation of unerupted 7s
8s present
What is treatment for upper non carious 6s
Fissure sealant
What are 2 advantages of extracting carious 6s at the right time?
gives a carious free permanent dentition
7s will erupt mesially and close the space
What are 2 disadvantages of extracting carious 6s ?
associated risk of GA
extraction of permanent molars can be demanding for a child and may affect future appointments
if extracting lower 6s need to extract caries free uppers to compensate
What is the origin and insertion of the masseter
origin - zygomatic arch
insertion - lateral surface and angle of the mandible
What is the function of the masseter ?
Elevates the mandible
What is the origin and insertion of the temporalis?
origin - floor of the temporal fossa
insertions - coronoid process and anterior border of the ramus
What is the function of the temporalis?
Elevates and retracts the mandible
What is the origin of the lateral pterygoid ?
from the lateral surface of the lateral pterygoid plate
What is the insertion for the anterior belly of the lateral pterygoid?
the anterior border of the condyle
What is the insertion for the superior belly of the lateral ptyergoid?
the anterior fibres of the intra-articular disc
What is the overall function of the lateral ptyerygoid?
protrudes and laterally deviates the mandible
What function does the inferior head of the lateral pterygoid have?
depresses the mandible
What is the insertion of the medial pterygoid?
medial surface of the angle of the mandible
What is the function of the medial pterygoid?
Elevates and assists in protrusion of the mandible
What is the origin of the deep head of the medial pterygoid?
medial surface of the lateral pterygoid plate
What is the origin of the superficial head of the medial pterygoid muscle?
the maxillary tuberosity
How can a dentist cause facial palsy during an IDB?
if the needle is advanced to far distally bone will not be contacted and LA is deposited into the parotid gland
The facial nerve runs through the parotid gland
dense fascia around the gland will because the LA to remain oft a long time causing paralysis of the facial muscles innervated by the facial nerve
How do you determine the difference between a facial palsy and a stroke?
Stroke - patient can wrinkle forehead and blink
facial palsy - face is affected on the same side where LA was given, cannot move upper or lower face
Stroke affects the opposite side of the body from the location in the brain that is affected