We look forward to raising the
public's awareness of dental implants as a standard of care for tooth
replacement and the many benefits that implant treatment offers over
other conventional methods," said Russ Olsen, President of Straumann
USA, Inc.
In addition to patient education, Body1 provides interactive,
knowledge-based tools for online medical education programs (the
eForums suite).

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It also provides accredited physicians with
complementary web sites through http://www. Aetna and
Columbia will create content to increase consumers' understanding of
dental prevention and treatment options so they can make more informed
decisions about their dental care.aetna. SDOS encourages and supports all
forms of academic research efforts that have direct impact on
improving oral health by fostering faculty and student participation
in research and training students in current research methodologies.

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This sponsored educational
program highlights Straumann's recent advances in oral health on
behalf of patients and referring dentists.

dentist doctors

com. This
new agreement strengthens our relationship and should benefit
consumers, employers and dentists . (Figures as of December 31,
2004)

Columbia University School of Dental and Oral Surgery

Since its inception in 1852 and its incorporation into Columbia
University in 1917, the School of Dental and Oral Surgery (SDOS) has
vigorously pursued its commitment to education, patient care and
research.

dentistry doctors

Body1 and Straumann Launch Online Consumer Resource to Expand Awareness of Dental Options; Dental1.org Debuts for Consumers Seeking to ''Up Their Dental I.Q.''

Aetna

As one of the nation's leading providers of health care, dental,
pharmacy, group life, disability and long-term care benefits, Aetna
puts information and helpful resources to work for its approximately
13. Recognizing the value to the public and the dental
specialties, SDOS established the first formal specialty education
program in orthodontics in the 1920s. SDOS
provides general dentistry, oral surgery, pediatric dentistry,
orthodontics, and other clinic services to many members of the
community through its Faculty Practice, Postgraduate and Specialty
Practice, and Undergraduate Clinic.

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org will present timely news features, reference material
including procedures, self diagnosis, and searchable conditions . Body1's
programs all accelerate the adoption of innovations that enhance human
health. They continue to provide training
and services to dental professionals worldwide with their Newport
Beach, CA training facility and the much-anticipated opening of the
new state-of-the-art training facility in Andover, MA. The Straumann
US office, currently located in Waltham, MA, is planning to venture to
Andover this spring to begin US manufacturing and prepare for further
expansion.

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Business Editors/Health/Medical Writers

HARTFORD, Conn.

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"We are delighted to work with such an important leader in
oral technologies for patient care such as Straumann," said Chris
Messina, CEO of Body1 , Inc.org.

About Straumann:

Headquartered in Basel, Switzerland, Straumann (SWX: STMN) is a
global leader in implant dentistry and dental tissue regeneration.

Aetna Dental Announces Agreement with Columbia University School of Dental and Oral Surgery

anatomy gums

"Aetna Dental previously worked with Columbia on research
about ways dentists can help patients stop smoking."
"We are looking forward to continuing our collaboration with Aetna
Dental and to providing consumers with reliable and credible dental
content through Aetna InteliHealth," said David A."

Content Development

To help Aetna provide updated information to members and the
public through Aetna InteliHealth's consumer dental health information
website www. On a weekly basis, Aetna and Columbia will select
several questions and post the answers on the website. SDOS went on to establish
programs in periodontics , endodontics, oral/maxillofacial surgery,
prosthodontics, pediatric dentistry and advanced programs .

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Business Editors/Health Editors

CAMBRIDGE, Mass."

About Body1, Inc

Body1 , Inc.Knee1. Our expanded relationship with Columbia will
help us conduct new research on the relationship between dental care
and certain health conditions," said Pat Farrell, head of Aetna
Dental.

Health-related news: several times per month, faculty members
will provide clinical review and input for written news
stories.

Research and Analysis

Columbia University School of Dental and Oral Surgery also will
provide analysis and research conclusions on quality management
programs and current dental practice standards and convene dental
expert panels to help Aetna Dental develop "best practices" to
validate the mouth-body integration. In addition, Columbia will
collaborate with Aetna on research opportunities and continue to
create continuing education courses for dentists participating in
Aetna's dental networks.

patients dentistry

"Body1 has an outstanding reputation for providing the public
education on health and medicine and we are excited about our
collaboration through this project. educates targeted populations on behalf of medical
product manufacturers through its network of knowledge communities, or
"KnowCos" such as www. In 2003, the Group generated sales of CHF 344
million and a net income of CHF 80 million.com.

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Visitors will participate in focused threaded discussion and live
chats with oral health care specialists. In the past, Straumann's implants and instruments have been
manufactured in Switzerland alone, whilst its dental tissue
regeneration products are produced in Sweden.intelihealth.

doctors periodontal

----Body1, Inc and
Straumann USA, Inc announced the launch of http://www. "We believe that they have all the
ingredients for advancing the state of art in oral health care - the
vision, the people, and the products. Albert, DDS,
associate professor of clinical dentistry at Columbia University
School of Dental and Oral Surgery.com, Columbia will develop new content
and expand existing content with the goal of demonstrating the
connection between dental health and overall wellness.
Columbia faculty members will lend their clinical expertise to the
following consumer dental features on Aetna InteliHealth's dental
health information website:

Ask the Dentist feature: visitors to the website will have the
opportunity to submit questions regarding dental health and
medicine.7 million medical members, 11.5 million group insurance members to help them
make better informed decisions about their health care and protect
their finances against health-related risks.

doctors dentristry

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Doctors1.dental.4 million
pharmacy members and 13 .

locator dentistry

Dental1.

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The Body1 Network is one of the most visited online health
networks with over 4 million visits per year and is accredited by the
Health on the Net (HON) Foundation. In
collaboration with the International Team for Implantology (ITI),
leading clinics, research institutes and universities , Straumann
researches, develops, produces and distributes implants, instruments
and tissue regeneration products for use in tooth replacement
solutions or to prevent tooth loss.
Columbia will provide oral health content for Aetna InteliHealth's
consumer dental health information website, available at
www.dental.com. "This agreement allows Columbia's
dental professors and students to gain experience developing
information for consumers and providers and conducting research and
analysis with Aetna .

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Dental1.org provides patients with comprehensive resources
to expand their awareness of industry -leading oral health technology
such as implants. Part of the Body1 network of health awareness sites ,
Dental1. They helped
develop continuing education courses for dentists on that topic.

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9 million dental members, 8.

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With affiliates in 14
countries and distributors in 35, Straumann employs more than 1000
people worldwide.

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Dental1 is a "knowledge community" (or "KnowCo") site for
patients seeking information on oral health and the latest
technological improvements in dental treatment .intelihealth.

Dental health information: visitors to Aetna InteliHealth will
have access to dental health content reviewed by the faculty
at Columbia. Aetna provides easy
access to cost-effective health care through a nationwide network of
more than 655,000 health care professionals, including over 390,000
primary care and specialist doctors and 3,937 hospitals .

continually gums

org
(Dental1).----

Columbia to Provide Content Development, Research and Analysis and
Continuing Education Courses

Aetna (NYSE:AET) today announced an expanded partnership with the
Columbia University School of Dental and Oral Surgery that will
strengthen the oral health information on the Aetna InteliHealth
consumer information website and improve the effectiveness of Aetna's
programs to enhance oral health.
"We see tremendous value in validating the correlation between
oral and overall health.

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The launch of
http://www.
This alliance creates an independent, Internet-based channel that
Straumann is supporting in order to provide educational information
about new medical technologies for tissue regeneration and implants as
an option for replacing missing teeth.

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For more
information, please visit www.

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In addition, Columbia will work with
Aetna's dental business to analyze aggregated medical and dental
claims data of Aetna members to validate the impact of dental care on
overall health outcomes.