Class III.
lProximal  surface of frontal teeth (incisors and
lcanines) without loss of the incisal edge
daniel9

 Access to the cavity
lThrough the enamel from the oral side
l- the round diamond, obliquely from the side of the neiborough tooth
lRemoval of old filling
lSeparation of teeth using wooden wedges
lcan be helpful
lRemoval of hyperplastic gingiva
klinek

pristup3,trida daniel8



 Cavosurface margin
l
lThe size of the cavity depends on dental caries, do not extend!!!
lExcavation of carious dentin
preparačni nastroje exkavator

 Retention
l Enamel must be beveled (retentive border – shallow groove).


3 brousky
bevel


Dry operating field
l
daniel9

daniel11
 Acid etching


daniel12
 Bonding


Surface morphology
for adhesion
ØEnamel
l-   regular surface with opened inter/intraprismatic
l    spaces
l
Ø
ØDentin
-no smear layer
-opened dentinal tubules
l-   collagen network
l    available
l
leptaniskl leptdentin

pristup3,trida daniel8



 Control of cavities
l
daniel9 Úzký svislý

daniel11
 Etching, rinsing, drying


daniel12
 Bonding


Cleaning of teeth
l
DSC_0125

 Cavity preparation
l
DSC_0126

Etching
l
DSC_0128

l
l
lDuring acid etching and preparation
lthe protection of neiborough tooth is necessary using a metal strip
l

 Matrix and wedge, bonding
l
DSC_0129

Layering of composite
l
DSC_0131

Layering of composite
l
DSC_0132

Before finishing
l
DSC_0138

  Matrix has been removed
l
DSC_0141

  Finishing
l
DSC_0143

 Polishing
l
DSC_0145

 Finished filling
l
III

3 3 pomucky