Prosthodontics 1- SBS Tooth Preparations

2-4; 2-3

Guide plane preparation:

- A guide plane adjacent to a tooth-supported segment should be .... in height, and .... mm in width, located in the occlusal ⅓ of the tooth.

1.5-2; 2-3

Guide plane preparation:

- A guide plane adjacent to an extension base segment should be .... mm in height, and ..... mm in width, located in the occlusal ⅓ of the tooth

natural curvature

Guide plane preparation:

- the prepared guide plane should follow the .... of the tooth surface with rounded line angles when viewed from an occlusal/incisal perspective.

linguoproximal

Guide plane preparation:

- Guide surface preparations on anterior teeth are usually restricted to the .... aspect so that the mesiodistal width of the facial surface is not decreased, unless it would benefit esthetics of final prosthesis

2-4

HOC adjustments:

- the plane preparation for a reciprocal clasp is .... mm in height in the middle 1/3 of the tooth

parallel; side

Guide plane preparation:

- Prepare guide planes with any diamond bur with .... walls, using the ... of the bur

adjacent to guide plane

HOC adjustments:

- Oftentimes, the height of contour must be lowered at the line angle immediately .... so that the retentive arm doesn't immediately go into an undercut

survey line

HOC adjustments:

- There also may be circumstances in which you need to flatten the height of contour.

- If the tooth is too bulbous, the undercut you want will not be in the required position in relation to the .....

angle

HOC adjustments:

- when adjusting the HOC use a diamond bur with parallel walls held at an ... to shift the HOC closer to the gingiva

smooth flowing

Undercut modifications:

- depression should exhibit ..... contours

in and out; cast

Undercut modifications avoid defined dimples because:

- Retentive clasps cannot flex ... of these indentations, and

- The metal RPD frameworks are made from does not .... well at sharp transitions

football

Undercut modifications:

- use a .... bur

positivity

rest seat preparation:

- All rests must also have ..... so as to not allow the prosthesis to slide off the tooth or allow the tooth to move out of the existing relationship with other teeth as occlusal pressure is increased.

V

rest seat preparation:

- On an anterior tooth, in the cingulum rest positivity is achieved through creating a "....." formation when viewed from the mesial or distal

triangular

rest seat preparation:

- the shape is .... with the apex pointing towards the center of the tooth with all features gently rounded

interproximal contact

rest seat preparation:

- do not break .....

undercuts

rest seat preparation:

- the walls can have no ....

minor connectors

rest seat preparation:

- The embrasure rest seat is basically two rest seats on abutting teeth, however additional reduction is required for space for the ......

2-3; 1-1.5

rest seat preparation embrasure clasp:

- At the facial and lingual embrasures, the embrasure rest should be ....mm wide and .... mm deep

cingulum

rest seat preparation cingulum:

- lingual view should be an inverted V with rounded apex

- V must be on the ...., not near gingiva

marginal ridges

rest seat preparation cingulum:

- the mesiodistal length should include the .....

1-2; .5-1

rest seat preparation cingulum:

- the labiolingual width is ....mm and the incisogingival depth is ..... mm

cinguli

rest seat preparation Ball:

- Commonly prepared on the lingual surfaces of anterior teeth that do not have prominent naturally occurring .....

- May also be the only option due to occlusal situation.

1/3-1/2

rest seat preparation incisal:

- Extends over incisal edge and is .... its width.