General Dentistry Chapter 48 Flashcards
restorative dentistry examples
initial or recurrent decay, abrasion, erosion, restoring function of tooth
esthetic dentistry examples
discolouration, abnormal spacing between teeth, trauma
cavity wall
internal surface of the tooth prepared for the restoration
internal wall
cavity wall that does not extend to the external tooth surface
external wall
surface of tooth prep that extends to the external tooth surface
what surfaces are involved with the external wall
distal, mesial ,facial, lingual, gingival, buccal
what surfaces are involved with the internal wall
axial wall, pulpal wall
pulpal wall is AKA
pulpal floor
line angle
angle formed by the junction of 2 walls /surface in a cavity prep
in the initial cavity prep, the outline form is when the dentist decides
the design and initial depth of sound tooth structure
in the initial cavity prep, the resistance form is when the dentist determines the
primary shape and placement of cavity walls
initial cavity prep, retention form: the dentist knows
where to place retention to prevent displacement or removal (helps mechanically lock into place)
initial cavity prep, convenience form: the dentist has
accessibility in preparing and restoring tooth
final cavity prep consists of 3 things
- removal of any remaining enamel within prep, 2. insert additional resistance and retention notches, 3. placing dental materials (liners/bases)
class I restorations
lesions affecting pit and fissures
class II restorations
extension of class I lesions into the proximal surfaces of premolars and molars
class III restorations
affects the proximal surface of incisors and canines
class IV
involves a larger surface area, incised edge and proximal surface of incisors and canines
class V restorations
decayed lesions at the gingival third
complex restorations
where the decay has extended beyond normal size or shape
