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Standards Committee kicks off 2013 with new projects

February 04, 2013

The ADA Standards Committee on Dental Products has announced five new standards projects that establish requirements for safe and effective dental products and technologies through a consensus-based process.

Additionally, the Working Groups on Investments and Portable Dental Units also need volunteers to participate in their ongoing projects.

The working groups that develop ADA standards are a diverse group of expert volunteers representing dental practitioners, industry, government and academia. Professionals who would like to contribute their expertise anywhere from the initial planning phase through reviewing final drafts may volunteer.

The ADA has played a key role in the development of dental standards since 1928 and is an American National Standards Institute-accredited standards developer.

Here are the new projects:

• Proposed ANSI/ADA Standard No. 27 on Polymer-based Restorative Materials

This project, a modified adoption of ISO 4049:2009 Dentistry-Polymer-based Restorative Materials, will replace the current ADA Standard No. 27:1993 on Resin-Based Filling Materials. ISO 4049:2009 specifies requirements for dental polymer-based restorative materials supplied in a form suitable for mechanical mixing, hand-mixing, or intra-oral and extra-oral external energy activation, and intended for use primarily for the direct or indirect restoration of cavities in the teeth and for luting.

The polymer-based luting materials covered by ISO 4049:2009 are intended for use in the cementation or fixation of restorations and appliances such as inlays, onlays, veneers, crowns and bridges.

• Proposed ANSI/ADA Standard No. 47 Dental Units

A modified adoption of ISO 7494-1:2011 Dentistry—Dental Unit—Part 1: General Requirements and Test Methods and ISO 7494-2:2003 Dentistry—Dental Units—Part 2: Water and Air Supply, this will revise and replace the current ANSI/ADA Standard No. 47:2006 Dental Units. This standard will update the existing edition with consideration of changes recently published in the latest edition of ISO 7494-1 and other changes identified by the working group.

The scope of Standard No. 47 will include general requirements for dental units as well as specific requirements for the materials, design and construction of the water and air supply within dental units; it will also include provisions for the prevention of retraction of oral fluids into the water supply of the dental unit.

The standard will not address prevention, inhibition or removal of microbial contamination in dental unit waterlines, as an ISO standard on this topic is presently under development.

• Proposed ANSI/ADA Standard No. 119 Manual Toothbrushes

This project, a modified adoption of ISO 20126:2012 Dentistry—Manual Toothbrushes—General Requirements and Test Methods and ISO 22254:2005 Dentistry—Manual Toothbrushes—Resistance of Tufted Portion to Deflection, will revise and replace the current ANSI/ADA Standard No. 119:2008 Manual Toothbrushes. ANSI/ADA Standard No. 119:2008 is an identical adoption of ISO 20126:2005 and ISO 22254:2005. This revision will align the ANSI/ADA standard with the recently published ISO 20126:2012. The standard will describe requirements and test methods for the physical properties of manual toothbrushes in order to promote the safety of these products for their intended use. It will also specify a test method for determining the resistance of the tufted portion of manual toothbrushes to deflection.

• Proposed ANSI/ADA Standard No. 136 Products for External Tooth Bleaching

This will be an adoption of ISO 28399:2011 of the same name and specifies requirements and test methods for external tooth bleaching products. These products are intended for use in the oral cavity, either by professional application (in-office tooth bleaching products) or consumer application (professional or nonprofessional home use of tooth bleaching products) or both. It also specifies requirements for their packaging, labeling and instructions for use.

• Proposed Addendum to Standard No. 139:2012 Dental Base Polymers

This will detail a thermostability test specific to auto-polymerizing (self-initiating cure) type resins and will replace ANSI/ADA Standard No. 17 on Denture Base Temporary Relining Resins:1983 (R2006). Volunteers who would like to join the working groups that review standards should contact Kathy Medic, manager, dental material standards, via the ADA toll-free number, Ext. 2533, or by email at