teeth selection

parameters of selection of artifical teeth

• aesthetics: size, form, shade

• function: type of teeth, occlusal arrangement

techniqueof lip dynamics (clapp): what do we use?

midline, high smile line, commisure line

height of central incisor, CC

10 nm, 48 (distal canine to distal canine)

wax plane involes?

high smile line, distance between lip commisures

old prosthesis involves?

• CI height

• distance between distal of canine and distal of canine

• CI width

form: face shape/arch shape

• class I: square

• class II: tapering (triangle face)

• Class III ovoid

dentogenic theory parameter for sleection of teeth

• gender, age, personality

central incisir should have what ratio

16:1

selection of posterior teeth (4)

• extension (A-p)

• cusp inclination

• height

• FL width

cusp inclination

• anatomical:

• semi:

• non

• 33 degrees

• 10-20 degrees

• 0

what does cusp inclination depend on?

condylic trajectory slope, residual edge height

the greater the angle, 

the greater the height of cusps of back teeth

cusp inlicaiton has major impact on

chewbing, retention, stablity

posterior teeth:

• anatomic

• semi

• non anatomic

• anatomic: complete cusps, 30-40 degree angle

• semi: shallow, 10-22 angle

• non anatomic: no cusps, 0 dgree

two kinds of balanced bilateral occlusion

lingualized, monoplane or non anatomical

Facial lingual width of posterior teeth: should do two things, comparitively,?

• allow forces of tongue and cheek to help with stability of prosthesis and chewing

• reduce amt of fofrce that is applied to teeth during function

• smaller

shade definition: the color of an object is determine dby its ability to?

the color is defined by?

• absorb rays that form white light

• color is defined by reflected light

chroma/saturation vs hue vs value

• hue: color itslef

• value: luminosity (light/dark)

• chroma/saturation: degree of pigment of color

confirmative vs reorganized approach

confirm: match what is present

reorganized: changes