A S S O C I A T IO N
REPO RTS
Supplement to the list of certified dental materials, instruments, and equipment
Permite S Large Excess Capsules, Zinc,
Southern Dental Industries, Inc Permite S Large Normal Capsules, Zinc, Southern Dental Industries, Inc Rex-Caps, Capsules, Non-Zinc, Pentron Corp
C ou n cil on D ental M aterials, In stru m en ts, an d Equipm ent CERTIFIED DENTURE BASE POLYMERS ANSI/ADA Specification No. 12 TYPE I, HEAT-CURING ^ ince publication of the most recent list of certified dental materials, instruments, and equipment in the November 1981 issue of The Journal (JADA 103(5):815-823), the following changes have been made in the list.
Additions The following products conform to the specifications of the Association as indi
cated and are being added to the list as new certifications.
CERTIFIED ALLOYS FOR DENTAL AMALGAM ANSI/ADA Specification No. 1 Jentaloy I, Powder and Pellets, Zinc Jensen Industries Jentaloy II, Powder and Pellets, Zinc, Jen sen Industries Oro-Caps, Capsules, Non-Zinc, Pentron Corp
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Dentistry on stamps Hannelore T. Loevy, CD, PhD Aletha Kowitz, MA
890 ■ JADA, Vol. 104, June 1982
Raydent, Class I, Coe Laboratories
CERTIFIED DENTAL EXCAVATING BURS ANSI/ADA Specification No. 23 TYPE II, CARBIDE CLASS 2, STRAIGHT HANDPIECE American Midwest, American Midwest
V J ince antiquity, different instruments have been designed to aid in the performance of dental and medical surgery. The scapullus (scalpel) was already known to the Romans. With the perfecting of craftsmanship, the design of instruments has changed to include or nate designs and elaborate handles of materials such as wood, ivory, bone, and mother-of-pearl. More recently, steel has been used be cause of the influence of Lister and his theories of sterilization. Throughout the centuries, surgeons evolved instruments that would be manufactured according to their specifications. Their pupils be came accustomed to a particular design of an instrument, had it copied, and the instrument often became known by the name of the master. By the end of the 18th century, with the development of specialty instrument makers, many of these instruments became more easily accessible. The many dental instruments manufactured can be broadly grouped into pelicans, elevators, screws, keys, and forceps. East Germany recently issued six stamps on old medical instru ments from the Karl-Sudhoff Institute in Leipzig. The stamps were designed by K. Hennig and printed in multicolor photogravure by the German Securities Printing Office in Leipzig. The instruments are printed in brown on a cream background. The 20-pfennig stamp shows a dental forceps, a pelican, and two elevators, all manufac tured in the 17th century. Pelicans were already described in 1363 and were so named because of their resemblance to bird’s beaks. The pelican shown on the stamp is double-ended with the claws fixed to the shaft by a joint. Several designs of this type of double-ended pelican were manufactured in Europe in the 17th and 18th cen turies, each manufacturer changing somewhat the shape of the shaft, the type of joint, or the type of serrations. Two types of elevators are shown on the stamp. One is known as a geisfuss (goat’s foot), the other as a double geisfuss. They were also called “pied-debiche,” and have been manufactured with variations since the mid dle of the 15th century. The forceps illustrated has a screw adjust ment and was manufactured in several countries of Europe in the latter part of the 17th century. The screw was intended to regulate the pressure of the beaks.