- Email: [email protected]
EDITOR
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THE JOURNAL OF THE AMERICAN DENTAL ASSOCIATION
IA
AL
D -
EDITOR
EDITORIAL BOARD
Lawrence H. Meskin, D.D.S., M.S.D., M.P.H., Ph.D.
Daniel M. Castagna, D.D.S.
Professor, School of Dentistry, University of Colorado Health Sciences Center, Denver
ASSOCIATE EDITORS Biomaterials/Restorative Dentistry Karl F. Leinfelder, D.M.D.
Professor emeritus, Department of Biomaterials, University of Alabama School of Dentistry, Birmingham; consultant, Chapel Hill, N.C.
Clinical Pharmacology Paul A. Moore, D.M.D., Ph.D., M.P.H.
Professor, Pharmacology, Department of Dental Public Health, University of Pittsburgh, School of Dental Medicine, Pittsburgh
Cosmetic and Esthetic Dentistry Jeff Morley, D.D.S.
Private practitioner, San Francisco
Dentistry and Medicine Michael Glick, D.M.D.
Director, Programs for Medically Complex Patients, University of Pennsylvania School of Dental Medicine, Philadelphia
Informatics and Technology Titus K.L. Schleyer, D.M.D., Ph.D.
Associate professor and chair, Department of Dental Informatics, Temple University School of Dentistry, Philadelphia
Practice Management Leslie W. Seldin, D.D.S. Private practitioner, New York
Assistant clinical professor, University of the Pacific, School of Dentistry, San Francisco
Gordon Christensen, D.D.S., M.S.D., Ph.D.
Co-founder and senior consultant, Clinical Research Associates. Oral Health Institute, Provo, Utah
Anthony DiAngelis, D.M.D., M.P.H.
Chief of Dentistry, Hennepin County Medical Center, Minneapolis; professor, University of Minnesota School of Dentistry, Minneapolis
MaIjorie Jeffcoat, D.M.D.
Chairperson, Department of Periodontics, University of Alabama School of Dentistry, Birmingham
Dushanka Kleinman, D.D.S., M.Sc.D.
Deputy director, National Institute of Dental and Craniofacial Research, Bethesda, Md.
Irwin Mandel, D.D.S.
Professor emeritus, Columbia University School of Dental and Oral Surgery, New York
John Molinari, Ph.D.
Chairperson, Department of Biomedical Sciences, University of Detroit Mercy School of Dentistry, Detroit
Linda Niessen, D.M.D., M.P.H., M.P.P.
Vice president, Clinical Education, DENTSPLY International, York, Pa.; clinical professor, Baylor College of Dentistry, Dallas
Michael T. Rainwater, D.M.D.
Private practitioner, Riverdale, Ga.
Cherilyn G. Sheets, D.D.S.
Private practitioner, Newport Beach, Calif.; founder and director, Newport Coast Oral Facial Institute, Newport Beach, Calif.; founder and president, The Children's Dental Center, Inglewood, Calif.
SUBSCRIPTION INFORMATION
Nonmember subscription inquiries and requests for back issues should be addressed to Subscription Department, ADA Publishing Co., Inc. Association members should address all inquiries to Department of Membership, American Dental Association. The Journal ofthe American Dental Association, JADA (ISSN 0002-8177), is published monthly by ADA Publishing Co., Inc., 211 E. Chicago Ave., Chicago, llI. 60611, phone 1-312-440-2785, fax 1-312-440-3538. Printed in USA. Periodical postage paid at Chicago and at additional mailing offices. Subscription for members $25 (dues allocation). Nonmember subscription rates: United States, U.S. possessions and Mexiro-individual, $95; institution, $115 per year. Foreign-individual, $120; institution, $145 per year. Canada-individual, $105; institution, $130 per year. Single copy rates: United States, $11; outside U.S., $18. Ainnail delivery to U.S. territories, Canada and Mexico, $25 a year, foreign, $100 a year. Copyright © 1999 American Dental Association. All rigbts reserved. Postmaster: send address changes to The Journal of the American Dental Association (JADA), 211 E. Chicago Ave., Chicago, Ill. 60611 one month before the effective date of change. For all Japanese subscription orders, please contact Maruzen Co. Ltd. 3-10, Nihonbashi 2·Chome, Chuo-ku, 'Ibkyo 103 Japan. Available on CD-ROM (1990-1998 issues). ADA ONLINE Internet address: "hUp://wwwoadaoorg". BPA Member Business Publications Audit. ADA Headquarters: The central telephone number is 1-312-440-2500. The ADA's toll-free phone number can be found on the back of your membership card. Member subscriptions: 1-312-440-2614 Classified Advertising: 1-312-440-2742 Nonmember subscriptions: 1-312-440-2867 Advertising Sales: 1-312-440-2740 Editorial: 1-312-440-2785 Cover illustration by Peter Solarz.
JADA, Vol. 130, December 1999 1685
-
THE JOURNAL OF THE AMERICAN DENTAL ASSOCIATION
IA
AL
D -
EDITOR
EDITORIAL BOARD
Lawrence H. Meskin, D.D.S., M.S.D., M.P.H., Ph.D.
Daniel M. Castagna, D.D.S.
Professor, School of Dentistry, University of Colorado Health Sciences Center, Denver
ASSOCIATE EDITORS Biomaterials/Restorative Dentistry Karl F. Leinfelder, D.M.D.
Professor emeritus, Department of Biomaterials, University of Alabama School of Dentistry, Birmingham; consultant, Chapel Hill, N.C.
Clinical Pharmacology Paul A. Moore, D.M.D., Ph.D., M.P.H.
Professor, Pharmacology, Department of Dental Public Health, University of Pittsburgh, School of Dental Medicine, Pittsburgh
Cosmetic and Esthetic Dentistry Jeff Morley, D.D.S.
Private practitioner, San Francisco
Dentistry and Medicine Michael Glick, D.M.D.
Director, Programs for Medically Complex Patients, University of Pennsylvania School of Dental Medicine, Philadelphia
Informatics and Technology Titus K.L. Schleyer, D.M.D., Ph.D.
Associate professor and chair, Department of Dental Informatics, Temple University School of Dentistry, Philadelphia
Practice Management Leslie W. Seldin, D.D.S. Private practitioner, New York
Assistant clinical professor, University of the Pacific, School of Dentistry, San Francisco
Gordon Christensen, D.D.S., M.S.D., Ph.D.
Co-founder and senior consultant, Clinical Research Associates. Oral Health Institute, Provo, Utah
Anthony DiAngelis, D.M.D., M.P.H.
Chief of Dentistry, Hennepin County Medical Center, Minneapolis; professor, University of Minnesota School of Dentistry, Minneapolis
MaIjorie Jeffcoat, D.M.D.
Chairperson, Department of Periodontics, University of Alabama School of Dentistry, Birmingham
Dushanka Kleinman, D.D.S., M.Sc.D.
Deputy director, National Institute of Dental and Craniofacial Research, Bethesda, Md.
Irwin Mandel, D.D.S.
Professor emeritus, Columbia University School of Dental and Oral Surgery, New York
John Molinari, Ph.D.
Chairperson, Department of Biomedical Sciences, University of Detroit Mercy School of Dentistry, Detroit
Linda Niessen, D.M.D., M.P.H., M.P.P.
Vice president, Clinical Education, DENTSPLY International, York, Pa.; clinical professor, Baylor College of Dentistry, Dallas
Michael T. Rainwater, D.M.D.
Private practitioner, Riverdale, Ga.
Cherilyn G. Sheets, D.D.S.
Private practitioner, Newport Beach, Calif.; founder and director, Newport Coast Oral Facial Institute, Newport Beach, Calif.; founder and president, The Children's Dental Center, Inglewood, Calif.
SUBSCRIPTION INFORMATION
Nonmember subscription inquiries and requests for back issues should be addressed to Subscription Department, ADA Publishing Co., Inc. Association members should address all inquiries to Department of Membership, American Dental Association. The Journal ofthe American Dental Association, JADA (ISSN 0002-8177), is published monthly by ADA Publishing Co., Inc., 211 E. Chicago Ave., Chicago, llI. 60611, phone 1-312-440-2785, fax 1-312-440-3538. Printed in USA. Periodical postage paid at Chicago and at additional mailing offices. Subscription for members $25 (dues allocation). Nonmember subscription rates: United States, U.S. possessions and Mexiro-individual, $95; institution, $115 per year. Foreign-individual, $120; institution, $145 per year. Canada-individual, $105; institution, $130 per year. Single copy rates: United States, $11; outside U.S., $18. Ainnail delivery to U.S. territories, Canada and Mexico, $25 a year, foreign, $100 a year. Copyright © 1999 American Dental Association. All rigbts reserved. Postmaster: send address changes to The Journal of the American Dental Association (JADA), 211 E. Chicago Ave., Chicago, Ill. 60611 one month before the effective date of change. For all Japanese subscription orders, please contact Maruzen Co. Ltd. 3-10, Nihonbashi 2·Chome, Chuo-ku, 'Ibkyo 103 Japan. Available on CD-ROM (1990-1998 issues). ADA ONLINE Internet address: "hUp://wwwoadaoorg". BPA Member Business Publications Audit. ADA Headquarters: The central telephone number is 1-312-440-2500. The ADA's toll-free phone number can be found on the back of your membership card. Member subscriptions: 1-312-440-2614 Classified Advertising: 1-312-440-2742 Nonmember subscriptions: 1-312-440-2867 Advertising Sales: 1-312-440-2740 Editorial: 1-312-440-2785 Cover illustration by Peter Solarz.
JADA, Vol. 130, December 1999 1685