BDS3

Question 1

mechanical methods of denture hygiene

Answer 1

• soft bristled brush and soap
• microwave - 20s max, no metal
• denture bath

Question 2

alkaline peroxides for denture cleaning

Answer 2

effervescent tablets e.g steradent
soak denture for 15 mins then rinse

Question 3

alkaline hypochlorite for denture cleaning

Answer 3

antibacterial and antifungal properties e.g milton
soak for 10 mins
(not suitable for soft linings)

Question 4

what is removed from dental ceramics to improve aesthetics

Answer 4

kaolin (opaque)
replaced with feldspar and silica

Question 5

neuropraxia

Answer 5

bruise to nerve

Question 6

neuronotmesis

Answer 6

nerve transected/ cut

Question 7

axonotmesis

Answer 7

myelin sheath of nerve disrupted

Question 8

timings and symptoms of dry socket

Answer 8

pain begins 3-4 days post extraction
can take 7-10 days to resolve
(clot either formed or lost early)
symptoms: dull, throbbing pain, bad odour, bad taste, pain may radiate to ear, exposed bone

Question 9

what is osteomyelitis

Answer 9

inflammation of bone or bone marrow due to infection

Question 10

pathogenesis of osteomyelitis

Answer 10

bacteria invasion sees oedema in bone marrow leading to blood vessel occlusion which allows bacteria to proliferate

Question 11

treatment of osteomyelitis

Answer 11

requires antibiotics or surgery - referral to specialist

Question 12

symptoms of osteomyelitis

Answer 12

chronic cases see no systemic symptoms
acute cases may be systemically unwell
radiographically a moth eaten appearance to bone
generally affects the immunocompromised

Question 13

discuss osteoradionecrosis

Answer 13

seen in patients with history of head and neck radiotherapy
can be brought on by extraction
radiated bone is verging on non vital (reduced blood supply, slow turnover) so self repair ineffective

Question 14

peri-operative methods of haemostasis

Answer 14

bone wax
diathermy
more LA with vasoconstrictor

Question 15

instruments for physical debridement

Answer 15

bone file
mitchells trimmer

Question 16

purpose of suturing (3)

Answer 16

• encourage healing by primary intention
• approximate tissues
• cover bone
• aid haemostasis

Question 17

pros and cons of polyfilament and monofilament sutures

Answer 17

polyfilament easier to handle
monofilament scar less (not an issue inside mouth)

Question 18

SDCEP plaque scores

Answer 18

10/10 - perfectly clean
8/10- - line of plaque at cervical margin
6/10 - cervical 1/3 covered
4/10 - middle 1/3 covered

Question 19

what teeth are assessed in a sBPE

Answer 19

16,11,26,36,31,46

Question 20

what is an sBPE and when should it be carried out

Answer 20

simplified BPE for children and young adults
should be done on all co-operative children ages 7-18
ages 7-11 only codes 0-2, ages 12+ all codes