Dental photography

Question 1

Intraoral…

Answer 1

simple , lightweight , small & no need for mirrors

subpar image quality

Question 2

Point & shoot..

Answer 2

Lightweight , small & lower cost

not upgradable & inconsistent magnification

Question 3

DSLR

Answer 3

provide more light options
high image quality
upgradable
heavy & expensive

Question 4

Camera body…

Answer 4

10 MP resolution
APS-C sensor
3 lcd screen

Question 5

macro lens

Answer 5

85-105mm
have magnification markings on it
cant be zoom

Question 6

twin flash..

Answer 6

good at mounting bracket

Question 7

Mirrors

Answer 7

Buccal (wide) : quadrant , buccal & lingual surfaces
Occlusal XL : mandibular & maxillary occlusal
frontal surface is coated to prevent double image
keep it warm
use biggest mirror
never placed it on

Question 8

Reflectors..

Answer 8

used to hold cheeks off of tooth of buccal surface

Question 9

Anterior contraster

Answer 9

used at anterior shots to black out background
enhance translucency
used in conjunction with retractor

Question 10

DSLR options

Answer 10

shutter speed : 60-250
iso:100-400
JPEG or RAW
f/8 : full scale
f/32 : intraoral

Question 11

Exposure mode

Answer 11

M : manual & AF : aprature priorty

Question 12

Flash mode

Answer 12

eTTL & advanced users use maual flash

Question 13

Focus mode

Answer 13

manual focus : MF

mouth is too dark to make autofocus work properly

Question 14

magnification

Answer 14

is changed by rotating lense barrel
macro lens have markings on it
1:!5 : full scale images
1:3 : intraoral images
1:!:5: close up images

Question 15

Full smile frontal view

Answer 15

Magnification ratio : 1:2- 1:3
Patient O. : head perpendicular to floor
Patient O. : HEAD & UPPER OCCLUSAL // to floor
Photo. comp. : lips at center , focus on canine
camera angle : lens is perepndicular to front of face
Light source : twin-ring-strobe

Question 16

Full smile lateral view ( RT lateral)

Answer 16

similar to frontal view except:-
Photo comp. : focus on lateral incisor

Camera angle : lens perependicular to front of face & RT canine

Question 17

Full smile lateral view (Lt lateral)

Answer 17

similar to RT but :-

camera angle : instead of RT canine , Lt canine

Question 18

Maxillary-mandibular retracted frontal view

Answer 18

magnification ratio : 1:2-1:3

Patient orientation same as pervious but:-

1) max. intercuspation - 2-3 seperation
2) retractors should be firmly pulled

Photo. comp. :

1) central incisor at the center
2) focus on central incisor vertically focused
3) midline of face at the middle
4) incisal edge of upper teeth
5) gingiva should be evident