Lab Tribune U.S. Edition, November 2010, Vol. 1, No. 2

Product Review LAB TRIBUNE | July 20104E be polymerized in all conventional units with a light spectrum of 320 nm to 500 nm. Metalight units (pri- motec, Westport, Conn.) are par- ticularly suitable as they have a cooling function that enables the material to be polymerized more gently (Fig. 10). The average polym- erization time is between 1.5 and 5 minutes, depending on the light- curing unit. During polymerization, primopat- tern maintains its properties and dimensional stability. The material does not have any clinically relevant shrinkage and does not distort, even when it is polymerized in strobo- scope units. It is very satisfying how perfectly the patterns fit following polymer- ization, without having to separate and reconnect them or insert relief cuts. Accuracy of fit and stability of the patterns are therefore very basic requirements for the success of laboratory work, particularly with implant bridges (Fig. 11) and bars. In both cases, the implant abut- ments and copings over the abut- ments are modeled very effective- ly with primopattern gel and the pontics and bars with primopattern paste (Fig. 12). Joachim Mosch completed his dental technology and commercial training in Frankfurt am Main, Germany. He was employed for 18 years in the European headquarters of an Ameri- can dental company, the last 10 years of which was in a general manage- ment position. In 2000, he founded his own com- panies: primotec and primodent. As the innovative engine of the com- panies, together with his team, he develops new products, technologies and procedures that help increase the quality and efficiency of dental and laboratory work compared with con- ventional methods. Mosch has pub- lished numerous articles on dental technology topics in the best-known dental journals. He is an international lecturer who presents a variety of innovative topics. Joachim Mosch, CDT 25 Sylvan Road South, Suite N Westport, CT 06880 (866) 643-3129 E-mail: mosch@primogroup.de www.primogroup.de About the authorLT f LT page 3E Fig. 10: Metalight light-curing units have a special cooling system and are particularly suitable for gentle polymerization. Fig. 11: Practical combination of pri- mopattern gel and paste. The abut- ments have been fabricated using gel and the pontics with paste. Fig. 12: As primopattern burns out without residue, the pattern can be cast, scanned, copy milled or pressed. ‘It is very satisfying how perfectly the patterns fit following polymerization, without having to separate and reconnect them or insert relief cuts.’ AD The light-cured patterns should be trimmed and finished with cross- cut carbide burs or rubber polishers. As primopattern burns out clean- ly and completely without residue, it can even be decided at this working stage whether the pattern should be sprued and cast, scanned, copy milled or pressed. Taking everything into con- sideration, primopattern LC is an advanced modeling material that meets all the requirements of mod- ern dental technology and is com- pletely universal. LT