◣★鄭文彥牙醫診所☆◥

關於部落格
台北市士林區文林路678號2樓
預約專線:(02)2833-0799
主要採預約掛號為主
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Composite resin operative dentistry in premolar by a periodontist

before treatment: 2nd caries in lower 2nd premolar
rubber dam isolation and insertion of metallic matrix and wooden wedge
put the light-cured composite resin on the wedge between the interproximal area to take the impression of an ideal outlined form of the on-going preparing cavity of 2nd premolar
a ring clasp is placed in contact with the non-polymerized composite resin,then more composite resin is placed to embrace the tip of ring and polymerized
remove the ring,which is filled with polymerized composite with ideal un-prepared outlined form ( buccal composite is left on the buccal embrasure area, do NOT touch and remove it )
remove the old composite resin
perform the cavity preparation. all un-supported enamel should be taken out.
put back the custom ring to shape the ideal outline form
apply primer and bonding agent after 37% phosphoric acid etching
flowable composite resin as liner
build up the marginal ridge to change class II to class I cavity
A3 dentin body as base
every cusp is built up one-by-one separately with W body resin then coated with small layer of translucent enamel
stain the fissure
polish
occlusal adjustment and finishing
before treatment
after treatment
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