COMPOSITE TECHNIQUE SMILE DESIGN COMPANIES/MATERIALS MATERIAL SCIENCE
CHARACTERIZATION COMPLEX CASES PORCELAIN REPAIR ESTHETIC RECONTOUR PERIODONTAL SPLINTING
ROTATED TEETH SHAPE CONTOUR TEXTURE COLOR CONTROL PRINCIPLE OF RESTORATION HOME EXPERTS site map
PAPILLAE LOSS
Gingival papillae are lost when periodontal disease, tooth separation or trauma occurs. Papillae are difficult to reestablish, however, restoration can often close the resulting black triangle. Papillae reestablishes when a contact is created 5 millimeters above the height of crestal bone. Restoration with composite can achieve these results.
Bonding is done to enamel and dentin. Enamel bonding minimizes microleakage from composite shrinkage during curing, function and forces of contraction/expansion during thermal cycling. Composite thermal coefficient of expansion is significantly different than tooth structure so it contracts and expands more than tooth structure. Dentin bonding seals dentinal tubules for reduced sensitivity and minimizes micro leakage at the restoration dentin interface should restoration leakage get that far.
Tooth structure is prepared, a plastic matrix placed, etching and bonding completed on one tooth. Placement of composite subgingivally is achieved by placing a matrix that reflects gingival tissue and allows bonding and composite placement. A lingual wall of composite is placed and shaped achieving ideal interproximal contours and then light cured. Interproximal dimensions and contours are made exact or too large because cured composite is difficult to add to when the oxygen inhibited layer is lost while cured composite is easily removed. A layer of translucent composite is placed across the facial surface, shaped with hand instruments and light cured.
A flat matrix produces straight contours when bent as occurs when wrapping a plastic matrix around a tooth. When convex surfaces are being produced, a matrix is not wrapped or a preshaped matrix used.
Final shaping and polishing is achieved with burs, sandpaper disks, rubber wheels, points, cups, and polishing pastes. Occlusial adjustments are made to the restored tooth with burs, sandpaper disks, and rubber cups, point and wheels.
Restoration of the adjacent tooth is achieved using the same technique. Close approximation of composite to the composite on the adjacent tooth is achieved by holding a matrix against the adjacent area with an instrument and then light curing.
CLICK BELOW TO READ ABOUT THESE SAMPLE CASES
