Technical Information

Technical Document Type of File / Add-in Required File Size
Simplified Space Maintainer Instructions (html) 16K
Space Maintainer Instructional Brochure (PDF) / (Adobe Reader) 184K
Instructional Video for DSL (high bandwidth) WMV / (Windows Media Player) 18.4 MB
Instructional Video for dial-up (low bandwidth) WMV / (Windows Media Player) 2.75 MB
Wire/Tube Sizing Chart (html) 19K
Space Maintainer Comparison Chart (html) 20K
Space Maintainer Re-order Form (PDF) / (Adobe Reader) 63K

Technical Q & A

Question: Is everything I need to perform chairside space maintenance included in the Introductory Kit? Answer: Everything is included except for the bonding agent. You can use whatever bonding agent you normally use for adhering bands and crowns. We do not recommend one bonding agent over another.
Question: The tubes are too long on some of my applications. I tried cutting them with a wire cutter but the hole in the tube closes. How do you cut the tubes without the holes closing? Answer: To cut the tubes, many doctors use a diamond disc on a handpiece (be VERY careful not to cut yourself) or use a diamond bur or other cutting device that does not involve squeezing.
Question: Do I need the crimping plier, or can I get by with a pair of dull wire cutters? Answer: We do not recommend wire cutters for a number of reasons. The Tube Crimping plier is designed and machined specifically for the diameter of the tubes it is crimping. It is not possible to over-crimp the tube - thus the appliance is stable. Wire cutters can over-crimp the tubes causing cracks in the tube which will weaken the appliance, or under crimp the tube which can allow the wire to move inside the tube, doing little or no good for space maintenance.
Question: You're website states that the intro kits comes with 1 of each size Space Maintainer Bands (total of 52).....what do the sizes range from in millimeters? Answer: The sizes range from 25 to 41, with half sizes starting at 33, for both the upper and lower arch. The band size relates to the length of the band in millimeters (if it was cut and laid out as a strip).
Question: Why are some wires narrow and some wires wide? Do I need both? Answer: Yes, you will need both. The tubes that are pre-welded to the bands and crowns are either narrow or wide depending on the size of the band or crown it is welded to; the larger sizes have a wide tube, the smaller sizes have a narrow tube. The larger sizes need more stability and thus require the wide tube and wire. Click here for a complete wiring chart.
Question: When I cut the wires, the ends have a bur which do not allow me to easily slide the wire into the tube. What am I doing wrong? Answer: If you are not using a high quality and sharp wire cutter, the cutter will leave burs. You must use a cutting device which cuts cleanly. I would suggest the DENOVO Wire Shear, part number 802-020. This device shears instead of chops and leaves a bur-free cut every time.
Question: I have an old space maintainer kit that I've been using for years. I want to order a new kit, but I don't need another crimping plier. Can I just order a kit without the plier? Answer: Yes. Search for part numbers 387-160 or 387-360. These kits do not include the tube crimping and plier and are less expensive.
 
Question: How do you know which size band to use? I waste a lot of bands when I guess the incorrect size. Any suggestions?
 
Answer: When you trial fit your band, don't seat the band fully; carefully check the band using light pressure - if the band doesn't slide on easily, use the next band size up. You can then sterilize and re-use the band instead of throwing it away.
There are also devices on the market that will measure the diameter of the tooth that you can use - or you utilize a piece of dental floss to measure the outside diameter. Our band sizes are inside diameter sizes in millimeters.
Question: What is the chemical composition of your stainless steel material. Does it contain any nickel? Answer: All stainless steel contains nickel. The percent composition by mass of our stainless steel is: Iron (69.22%, Chromium (18.12%), Nickel (9.58%), Manganese (1.59%), Silicon (0.52%), Molybdenum (0.39%), Copper (0.35%), Cobalt (0.18%), and Carbon (0.05%). Trace amounts of  Phosphorous, Titanium, Sulphur, and Aluminum - Oxygen is present at 36 PPM.
Question: What do you recommend for patients with nickel sensitivity? Answer: Since the space maintainer appliance will be in place for for a period up to 3-4 years, we do not recommend this device for patients with nickel sensitivity. We are not aware of any appliances available that are not made of stainless steel.
Question: There are times when I don't have a band small enough for a tooth I'm fitting. What do I do? Answer: We have recently introduced two smaller sizes, 23 & 24, which should solve your problem. In extreme cases, you can crown the tooth and then place the band over the crown.

 

 
Click here for a Space Maintainer Re-order Form
 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

       
 
       
 

DENOVO Dental Inc. - 5130 Commerce Dr.

Baldwin Park, CA 91706

 

(800) 854-7949 or (626) 939-5000

FAX: (800) 847-8599