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SECOND AMENDMENT TO REGISTRATION RIGHTS AGREEMENT    
  


    THIS SECOND AMENDMENT TO REGISTRATION RIGHTS AGREEMENT (the "Amendment"), dated as of April 13, 2001, is
made and entered into among INTERDENT, INC. ("the Company"), the Requisite Holders and Union Bank of California, N.A., The Chase Manhattan Bank,
Bank of America, N.A., Citizens Bank of Massachusetts, First National Bank, Fleet Capital Corporation, Sovereign Bank and U.S. Bank National Association (collectively, the "Additional Holders"). 


    WHEREAS,
the Company has entered into a Registration Rights Agreement dated as of March 11, 1999 (the "Registration Rights
Agreement"), pursuant to which the Holders received registration rights with respect to certain securities of the Company owned by the Holders; and 


    WHEREAS,
the Additional Holders desire to become parties to the Registration Rights Agreement, as amended hereby. 


    NOW,
THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows: 


    1.  Capitalized
terms used but not otherwise defined herein shall have the meanings ascribed to such terms in the Registration Rights Agreement. 


    2.  Pursuant
to Section 19 thereof, the Registration Rights Agreement is hereby amended as follows: 



    (a) For
all purposes of the Registration Rights Agreement, each Additional Holder shall be considered a Holder and entitled to all rights and subject to all obligations
under the Registration Rights Agreement, as amended pursuant to this Amendment. 


    (b) Schedule I to the Registration Rights Agreement is hereby amended to add at the end thereof, the following
text: 



Union
Bank of California, N.A.

400 California St., 8th Floor

San Francisco, CA 94104

Attention: Nancy Perkins, Vice President

Telephone: (415) 765-2264

Telecopier: (415) 765-2170 


The
Chase Manhattan Bank

1166 Sixth Avenue, 16th Floor

New York, NY 10036

Attention: Eric Groberg, Vice President

Telephone: (212) 899-1297

Telecopier: (212) 899-2926 


Bank
of America, N.A.

South Coast Financial Center

675 Anton Blvd., 2nd Floor

Costa Mesa, CA 92626-7013

Attention: Ronald Parisi, Senior Vice President

Telephone: (714) 850-6590

Telecopier: (714) 850-6566 



Citizens
Financial Group, Inc.

53 State Street, 8th Floor

Boston, MA 02109





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Attention: Larry Jacobs, Vice President

Telephone: (617) 994-7144

Telecopier: (617) 742-9471 


First
National Bank

401 West "A" Street

San Diego, CA 92101

Attention: Daniel T. Grenci, Senior Vice President

Telephone: (619) 233-5588 ext. 1603

Telecopier: (619) 235-1266 


Fleet
Capital Corporation

15260 Ventura Blvd., Suite 400

Sherman Oaks, CA 91403-7899

Attention: Leslie Reuter, Senior Vice President

Telephone: (818) 382-4403

Telecopier: (818) 382-4291 


Sovereign
Bank

100 Pearl Street, 5th Floor

Hartford, CT 06103

Attention: Roland Lamothe

Telephone: (860) 757-3415

Telecopier: (860) 757-3450 


U.S.
Bank National Association

601 Second Avenue South

MPFP2516

Minneapolis, MN 55402-4302

Attention: Daniel Falstad, VP

Telephone: (612) 923-2176

Telecopier: (612) 923-2148 





    3.  All
other provisions of the Registration Rights Agreement shall remain in full force and effect. 


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    IN WITNESS WHEREOF, the parties have executed and delivered this Second Amendment to Registration Rights Agreement as of the day and year first above written. 



	 	 	INTERDENT INC.
	

 	
 	

 	

 
	 	 	By:	/s/ MICHAEL T. FIORE
 Michael T. Fiore
 Co-Chairman of the Board

and Chief Executive Officer
	

ADDITIONAL HOLDERS:	
 	

 	

 
	

 	
 	

UNION BANK OF CALIFORNIA, N.A.
	

 	
 	

 	

 
	 	 	By:	/s/ THOMAS FRATAR

	 	 	Name:	Thomas Fratar

	 	 	Title:	Vice President

	

 	
 	

THE CHASE MANHATTAN BANK
	

 	
 	

 	

 
	 	 	By:	/s/ ERIC GROBERG

	 	 	Name:	Eric Groberg

	 	 	Title:	Vice President

	

 	
 	

BANK OF AMERICA, N.A.
	

 	
 	

 	

 
	 	 	By:	/s/ RONALD J. PARISI

	 	 	Name:	Ronald J. Parisi

	 	 	Title:	Sr. Vice President

	

 	
 	

CITIZENS FINANCIAL GROUP, INC.
	

 	
 	

 	

 
	 	 	By:	/s/ LAWRENCE E. JACOBS

	 	 	Name:	Lawrence E. Jacobs

	 	 	Title:	Vice President

	

 	
 	

FIRST NATIONAL BANK
	

 	
 	

 	

 
	 	 	By:	/s/ DANIEL T. GRENCY

	 	 	Name:	Daniel T. Grency

	 	 	Title:	CEO

	

 	
 	

FLEET CAPITAL CORPORATION
	

 	
 	

 	

 
	 	 	By:	/s/ LESLIE REUTER

	 	 	Name:	Leslie Reuter

	 	 	Title:	Sr. Vice President

	

 	
 	

SOVEREIGN BANK
	

 	
 	

 	

 
	 	 	By:	/s/ ROLAND D. LAMOTHE

	 	 	Name:	Roland D. Lamothe

	 	 	Title:	Vice President




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U.S. BANK NATIONAL ASSOCIATION
	

 	
 	

 	

 
	 	 	By:	/s/ DANIEL J. FALSTAD

	 	 	Name:	Daniel J. Falstad

	 	 	Title:	Vice President

	

REQUISITE HOLDERS:	
 	

 	

 
	 	 	J.P MORGAN PARTNERS (23A SBIC), LLC
	

 	
 	

By:	

J.P. Morgan Partners (23A SBIC), Inc.

its Managing Member
	

 	
 	

 	

 
	 	 	By:	/s/ J.P. MORGAN PARTNERS

	 	 	Name:	  

	 	 	Title:	  

	

 	
 	

SPROUT CAPITAL VII, L.P.
	

 	
 	

By:	

DLJ Capital Corp.,

its Managing General Partner
	

 	
 	

 	

 
	 	 	By:	/s/ ROBERT FINZI
 Robert Finzi

Attorney in Fact
	

SPROUT GROWTH II, L.P.	
 	

 	

 
	

 	
 	

By:	

DLJ Capital Corp.,

its Managing Genberal Partner
	

 	
 	

 	

 
	 	 	By:	/s/ ROBERT FINZI
 Robert Finzi

Attorney in Fact
	

 	
 	

THE SPROUT CEO FUND, L.P.
	

 	
 	

By:	

DLJ Capital Corp.,

its General Partner
	

 	
 	

 	

 
	 	 	By:	/s/ ROBERT FINZI
 Robert Finzi

Attorney in Fact
	

 	
 	

DLJ CAPITAL CORP.
	

 	
 	

 	

 
	 	 	By:	/s/ ROBERT FINZI
 Robert Finzi

Attorney in Fact
	

 	
 	

DLJ FIRST ESC L.L.C.
	

 	
 	

 	

 
	 	 	By:	/s/ ROBERT FINZI
 Robert Finzi

Attorney in Fact



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LEVINE LEICHTMAN CAPITAL PARTNERS II, L.P.
	

 	
 	

By:	

Levine Leichtman Capital Partners, Inc.
	

 	
 	

 	

 
	 	 	By:	/s/ LEVINE LEICHTMAN CAPITAL PARTNERS, INC.

	 	 	Name:	  

	 	 	Title:	  

	

 	
 	

SRM '93 Children's Trust
	

 	
 	

 	

 
	 	 	By:	/s/ MICHAEL T. FIORE

	 	 	Name:	  

	 	 	Title:	  

	

 	
 	

 	

 
	 	 	/s/ MICHAEL T. FIORE
 Michael T. Fiore
	

 	
 	

 	

 
	 	 	/s/ DR. STEVEN R. MATZKIN
 Dr. Steven R. Matzkin
	

 	
 	

 	

 
	 	 	/s/ L. THEODORE VAN EERDEN
 L. Theodore Van Eerden
	

 	
 	

 	

 
	 	 	/s/ NORMAN R. HUFFAKER
 Norman R. Huffaker
	

 	
 	

 	

 
	 	 	/s/ RANDY HENRY
 Randy Henry
	

 	
 	

 	

 
	 	 	/s/ GRANT M. SADLER
 Grant M. Sadler
	

 	
 	

 	

 
	 	 	/s/ DAVID P. NICHOLS
 David P. Nichols
	

 	
 	

 	

 
	 	 	/s/ MITCHELL B. OLAN
 Mitchell B. Olan
	

 	
 	

 	

 
	 	 	/s/ ROBERT FINZI
 Robert Finzi
	

 	
 	

 	

 
	 	 	/s/ ERIC GREEN
 Eric Green
	

 	
 	

 	

 
	 	 	/s/ PAUL H. KECKLEY
 Paul H. Keckley
	

 	
 	

 	

 
	 	 	/s/ H. WAYNE POSEY
 H. Wayne Posey
	

 	
 	

 	

 
	 	 	/s/ ROBERT F. RAUCCI
 Robert F. Raucci
	

 	
 	

 	

 
	 	 	/s/ CURTIS LEE SMITH, JR.
 Curtis Lee Smith, Jr.




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SECOND AMENDMENT TO REGISTRATION RIGHTS AGREEMENT