Directions Page 2

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" height=30 BGCOLOR="#000000" TEXT="#F7F7FF"> <div> <FONT SIZE="5" COLOR="#FFCC66" FACE="Arial" ><B>PSI DENTAL SUPPLY</B></FONT><B>     |     </B><A HREF="index.htm" TARGET="_top" TITLE="PSI DENTAL SUPPLY"><U><B>home</B></U></A></div> <div> <B>Directions Page 2</B>   |   <A HREF="id76.htm" TARGET="_top" TITLE="Directions Page 3"><U>Directions Page 3</U></A></div> <div> </div> </td> </tr><tr> <td valign="top" height=450 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <I>Directions Page 2</I></div> <div> <A HREF="id76.htm" TARGET="_top" TITLE="Directions Page 3"><U>Next Page</U></A></div> <div> <A HREF="id73.htm" TARGET="_top" TITLE="Directions "><U>Previous Page</U></A></div> <div> <A HREF="products.htm" TARGET="_top" TITLE="Dentist Products "><U>Back to Dentist Products</U></A></div> <div> <B>Tooth Conditioning/Dentin Pretreatment</B></div> <div> 1. Following restoration try-in, rinse preparation thoroughly with water spray and air dry. Isolate tooth. When dentin is involved, apply liner only over near exposure areas.</div> <bR> <div> 2. Apply 37% Tooth Etchant.</div> <div> Attach disposable needle tip to end of syringe.  Gently extrude Tooth Etchant on enamel margins, If a total etch technique is desired, continue to extrude Tooth Etchant onto dentin surfaces. Condition enamel for at least 30 seconds and dentin for 15 seconds or less. Enamel should appear frosted.</div> <bR> <div> 3. Rinse and blot dry. Remove gel with aspirator tube and/or vigorous water spray and rinse conditioned areas thoroughly for at least 10 seconds.  Blot dry conditioned areas  with a cotton pellet.  When preparation is in enamel, tooth surface should be completely dry. Use a gentle air stream.</div> <bR> <div> When a total etch technique is being used, for best results, saturate a cotton pellet and remove excess water from the pellet by blotting it on a gauze pad before using the pellet to blot the tooth. Blot drying provides the correct amount of `wetness" on the tooth surface by removing all excess moisture and avoiding desiccating the tooth surface. Do not rub the tooth surface when blot drying. Dentin should be blotted until there is no pooling of water, leaving a moist, glistening surface. Once the surfaces have been properly treated, they must be kept uncontaminated. If salivary contamination occurs, repeat procedure beginning at step 1.</div> <bR> <div> <B>VENEER CEMENTATION - LIGHT CURED</B></div> <div> Before proceeding refer above for Treatment of the Restoration and Tooth Conditioning/Dentin Pretreatment</div> <bR> <div> 1. (If preparation is primarily in dentin.) Use the Confi-Quick One Part Dentin/Enamel Primer/Adhesive and apply directly by attaching the flocked syringe tip to the syringe.  (Use Enamel Bonding Agent if preparation is primarily in enamel. Tooth surface should be completely dry).</div> <bR> <div> 2. (If preparation is primarily in dentin.) Keep the tooth moist and using the flocked tip syringe, vigorously apply a coat of One Part Dentin/Enamel Primer/ Adhesive. Allow acetone to evaporate by drying gently with air. Apply additional coats until the surface appears uniformly glossy. (If using Enamel Bonding Agent, tooth should be completely dry. Apply a single coat of Enamel Bonding Agent to prepared tooth surfaces. Excess should be removed. Do not allow pooling.  Do not contaminate with any moisture.)</div> <bR> <div> 3. Cure adhesive for 10-20  seconds using a curing light. Do not contaminate with any moisture.</div> <bR> <div> 4. Apply a single coat of Bonding Agent adhesive to the internal bonding surface of the restoration. Immediately air dry for 5 seconds and light cure.  Do not allow resin to pool. If layer is thin, curing will not affect fit.</div> <bR> <div> <B>Cementation Technique</B></div> <div> 1. Dispense the desired shade of  Resin Cement base paste from the syringe (or mixed shade as explained above) directly onto the veneer.  Protect cement from exposure to light.</div> <bR> <div> 2. Seat the loaded veneer in place. Remove excess from the gingival margin with a blunt instrument. Light cure the gingival portion only to tack restoration in place (10 seconds or less) with small tipped light. Remove any excess from proximal and lingual margins.</div> <bR> <div> Placement of mylar strips between preparation and adjacent teeth prior to seating veneer aids in isolation and in excess cement clean up. After removing gingival excess and tacking veneer in place, remove interproximal excess cement by pulling mylar strip towards the facial, i.e., from tooth to restoration surface.</div> <bR> <div> 3. Light cure 20 seconds each from the buccal, lingual, and interproximal aspects.</div> <bR> <div> 4. Following the light cure check and adjust occlusion as necessary. To insure marginal seal, apply bonding agent around margins, floss, and light cure. Proceed to Finishing and Polishing.</div> <bR> <div> <B>CROWN and BRIDGE INLAY/ONLAY CEMENTATION. DUAL CURED</B></div> <div> Before proceeding refer above for Treatment of the Restoration and Tooth Conditioning/Dentin Pretreatment. </div> <bR> <div> 1. Use the Confi-Quick One Part Dentin/Enamel Primer/Adhesive in the flocked syringe and apply generous amounts directly to the preparation, thoroughly wetting all tooth preparation surfaces. Allow acetone to evaporate. This surface should remain fully wet for 20 seconds.</div> <bR> <div> 2. Remove excess solvent by gently drying with clean, dry air from a dental syringe for at least 5 seconds. Surface should have a uniform glossy appearance. If not, repeat application and air dry.</div> <bR> <div> 3. Cure adhesive for 10-20 seconds using a curing light. Do not contaminate with any moisture.</div> <bR> <div> 4. Apply a single coat of  Bonding Agent or Dentin/Enamel Primer/Adhesive to the internal bonding surface of the restoration. Do not pool. Air thin and/or dry. Light cure for 10 seconds.</div> <bR> <div> <B>Cementation Technique</B></div> <div> 1. Dispense the desired shade of  Resin Cement base paste from the syringe onto a clean mixing pad. Dispense an equal amount of catalyst paste. Mix together  thoroughly for  10-20 seconds. Do not mix more than will be used for a single restoration.</div> <bR> <div> 2. Apply a uniform layer of dual cure resin mixture on the entire internal surface of the restoration. For inlays/onlays, it may be helpful to apply a thin layer of cement to the internal portions of the tooth preparation to avoid any porosity or voids. At room temperature, the mixture offers a working time of at least 2 min 30 seconds.</div> <bR> <div> 3. Seat the restoration with gradual pressure. A gentle rocking or vibratory motion may be helpful to insure optimal seating.</div> <bR> <div> 4. Remove gross excess from marginal areas. Use an instrument such as a blunted explorer, periodontal probe or a clean, dry brush tip. Restoration should not be moved or torqued during removal of gross excess cement. Special attention should be paid to interproximal, areas using floss to remove excess cement. (A 10 second light  "pre-cure" of excess cement at the margins will cause cement to "gel", allowing easier cleanup.) Apply moderate and consistent pressure to the restoration throughout the self-cure set time of approximately 6 minutes from the beginning of mixing.</div> <bR> <div> 5.Once stabilized, light cure all marginal areas of the restoration for 20 seconds from each direction - buccal, lingual and occlusal.</div> <bR> <div> 6. Following the self-cure set, check and adjust occlusion as necessary. To insure marginal seal, apply bonding agent around margins, floss, and light cure. Proceed to    Finishing and Polishing section.</div> <bR> <div> <B>Endodontic Posts</B></div> <div> Before proceeding refer above for Treatment of the Restoration and Tooth Conditioning/Dentin Pretreatment</div> <bR> <div> 1. Place 2-3 drops of One Part Denti/Enamel Primer/Adhesive directly into a clean well or use flocked syringe for direct application.</div> <bR> <div> 2. Apply One Part Dentin/Enamel Primer/Adhesive to post preparation with a brush or flocked syringe, being sure to apply generous amounts to the preparation orifice. A paper point pre-wetted with the adhesive may aid in bringing the adhesive mixture down to the deepest portion of the preparation. Maintain contact of adhesive with tooth structure for at least 20 seconds.</div> <bR> <div> 3.  Air dry treated post preparation with air syringe. Use of clean, dry paper points may aid in thorough removal of acetone in post space. Surface should have a uniform glossy appearance. If not, repeat application and air dry. Be sure there is no pooling. Light cure for 20 seconds.</div> <bR> <div> 4.  Apply a single coat of  One Part Dentin/Enamel Primer/Adhesive to the post with the same brush or flocked syringe followed by gentle air drying for 5 seconds. Light cure for 20 seconds.</div> <bR> <div> <B>Cementation Technique</B></div> <div> 1.  Dispense the desired shade of Resin Cement base paste from the syringe onto a clean mixing pad. A light base shade e.g., Light Universal will allow maximum light transmission. Dispense an equal amount of catalyst paste. Mix the cement for 10-20 seconds.</div> <bR> <div> As with any dual cure resin cement system, the working time is  shortened.</div> <bR> <div> 2. Spread mixed Resin Cement components on surface of post and/or into the post preparation with a syringe tip, Lentulo Spiral or metal file.</div> <bR> <div> 3.  Seat post immediately. Clean up excess with appropriate instruments. A 10 second light exposure "pre-cure" of excess cement at the margins will cause cement to "gel", allowing easy cleanup.</div> <bR> <div> 4.  Stabilize post until cement sets. Apply moderate and consistent pressure to the restoration throughout the self-cure set time of approximately 6 minutes from the beginning of mixing. Light cure the cemented post for 20 seconds.</div> <bR> <div> Proceed with core build-up and/or preparation.</div> <bR> <div> <B>FinIshing and Polishing</B></div> <div> Removal of resin flash is best accomplished with a finishing system including points, cups and discs. Polish final restoration using Polishing Paste and a wet polishing system</div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="id76.htm" TARGET="_top" TITLE="Directions Page 3"><U>Next Page</U></A></div> <div> <A HREF="id73.htm" TARGET="_top" TITLE="Directions "><U>Previous Page</U></A></div> <div> <A HREF="products.htm" TARGET="_top" TITLE="Dentist Products "><U>Back to Dentist Products</U></A></div> </td> </tr></table></body>