EXHIBIT 10.22(c)


               (AZ Trade Marks Licence Agreement)

DATE:    18TH JANUARY 2001

PARTIES:

1.       ASTRAZENECA AB a company  incorporated under the laws of
         Sweden  and  having  its  principal  office at SE-151 85
         Sodertalje, Sweden ("AZ")

2.       MAILLEFER   INSTRUMENTS   HOLDINGS    S.A.,   a  company
         incorporated  under the laws of  Switzerland  and having
         its  principal  office at  Chemin  du Verger 3,  CH-1338
         Ballaigues, Switzerland (the "Licensee")

BACKGROUND

(A)      AZ is the owner and  registered  proprietor of the Trade
         Marks,  each of which is registered  and used in respect
         of a  single  LAD  Product  Category.  A  list  of  such
         registrations,  by LAD Product Category and Country,  is
         set out in Schedule 2.

(B)      By an agreement (the "AZLAD  Products  Agreement")  made
         between the Parties on the same date as this  Agreement,
         AZ  granted  to the  Licensee  on the  terms and for the
         consideration  therein stated the permanent right to use
         AZ's technical  information  as therein  defined for the
         purpose of  manufacturing  LAD  Products and agreed with
         the  Licensee  to  enter  into  this  Agreement  for the
         purpose of  granting  to the  Licensee  the right to use
         the  Trade  Marks  in  respect  of LAD  Products  in the
         Territory on the terms herein stated.

OPERATIVE PROVISIONS

1.1      In this Agreement:

         (i)     the  term  "this   Agreement"  shall  mean  this
                 Agreement and the  Schedules and any  amendments
                 hereto;




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         (ii)    the terms "AZ" and  "Licensee" and references to
                 the   "Parties"   shall,   unless  the   context
                 otherwise  requires,  mean AZ and its Affiliates
                 or any one of  them  and  the  Licensee  and its
                 Affiliates  or any  one of  them  and  the  term
                 "Party" shall be construed accordingly.

1.2      In this  Agreement  the  following  terms shall have the
         following meanings:

         "Affiliate"  means any corporation,  partnership,  joint
         venture,  limited  liability  company or other  business
         entity now or hereafter  controlling,  controlled  by or
         under  common  control  with AZ or the  Licensee  as the
         case  may be and for  the  purposes  of this  definition
         "control"  means  the  possession,   whether  direct  or
         indirect,   of  the  power  to  direct  the   management
         policies  of a  business  entity,  whether  through  the
         ownership  of a majority  of the voting  rights in it or
         by contract.

         "Competent  Authority"  means in respect of each Country
         the  competent  regulatory  authority  for the  grant of
         Marketing Authorisations.

         "Country" means a country within the Territory.

         "Dental   Products"   means   injectable   dental  local
         anaesthetic  drug  products,  being  medicinal  products
         designed  for  and  placed  on  the  market  solely  and
         specifically  for use by dentists,  periodontists,  oral
         surgeons and other practitioners of dentistry.

         "Effective Date" means 1st March 2001.

         "GMP" means the  requirement set out in the World Health
         Organisation  code on "Good Practice for the Manufacture
         and Quality  Control of Drugs"  and/or other  applicable
         regulations  in the  Country of  manufacture  concerning
         the  manufacture,  formulation,  processing or packaging
         of pharmaceutical products.

         "LAD Product  Category" means a LAD Product category set
         out in Schedule 1.

         "LAD  Products"  means  cartridges   containing   Dental
         Products.




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         "Marketing   Authorisations"   means  the  registrations
         granted by the  Competent  Authority in each Country for
         the sale of LAD  Products  and,  where  applicable,  for
         approval of prices and cost reimbursements.

         "Relevant  LAD Product"  means a LAD Product  within the
         applicable LAD Product Category.

         "Specified Drug  Substances"  means drug substances used
         by AZ at 1st  January  2001  in the  formulation  of LAD
         Products.

         "Territory"  means the World,  excluding  India and any
         other  country  which  under  the  terms  of the  AZLAD
         Products Agreement shall be excluded from the Territory.

         "Trade  Marks"  means the trade marks listed in Schedule
         1.

         "Trade Mark Authority"  means in respect of each Country
         the  competent  authority  for the  grant of trade  mark
         registrations    and    registration   of   trade   mark
         assignments and licences.

2.       The Licensee  acknowledges that the Trade Marks are used
         by AZ in  connection  with its  business of  developing,
         manufacturing  and selling  medical  products as well as
         in  connection  with LAD Products and that any breach by
         the Licensee of its obligations  under this Agreement in
         relation to the use of the Trade  Marks by the  Licensee
         may cause AZ  substantial  loss or damage in relation to
         its medical  business.  Likewise,  AZ acknowledges  that
         its  use of the  Trade  Marks  in its  medical  business
         shall be in such manner as shall not  disparage  the use
         of the  Trade  Marks by the  Licensee  or  infringe  the
         rights in the Trade Marks  granted by it to the Licensee
         hereunder  and that any  breach of such  obligation  may
         cause  the  Licensee  substantial  loss or damage in its
         dental business.

3.1      With effect from the  Effective  Date,  AZ grants to the
         Licensee  a  permanent,  exclusive  (even  as to AZ) and
         royalty-free  licence in accordance  with and subject to
         the  provisions of this Agreement to use in each Country
         in connection with Relevant



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         LAD Products each Trade Mark  registered in such Country
         and used by AZ in such  Country in  respect of  Relevant
         LAD Products at the date of this  Agreement as listed in
         Schedule  2. To the extent  that AZ is able to do so, AZ
         also grants to the  Licensee  the same rights to use the
         unregistered   trade  marks  listed  in  Schedule  3  in
         respect  of  Relevant  LAD  Products  in  the  Countries
         listed  in  Schedule  3.  The  Licensee   shall  not  be
         entitled  to use  any  Trade  Mark  in  connection  with
         products  other than  Relevant LAD Products nor (subject
         to clause 3.2) to use any Trade Mark in connection  with
         Relevant  LAD  Products  in  Countries  other  than  the
         Countries  listed  in  respect  of  such  Trade  Mark in
         Schedule 2 or 3.

3.2      If the  Licensee  wishes  AZ to grant to it the right to
         use any Trade Mark in respect of Relevant  LAD  Products
         in Countries  other than the  Countries  listed for such
         Trade Mark in  Schedule 2 or 3, it shall apply to AZ for
         consent  to such  extension  of its Trade  Mark  licence
         rights  and  AZ  shall  not  unreasonably  withhold  its
         consent thereto,  provided that any costs incurred by AZ
         in   connection   therewith   shall   be  borne  by  the
         Licensee.  The  Licensee  acknowledges  that  it will be
         reasonable  for  AZ to  withhold  its  consent  if it is
         determined  by AZ that the  Licensee's  use of the Trade
         Mark in a Country will be  detrimental  to the interests
         of AZ's medical business.

4.       AZ retains all rights to use the Trade Marks  subject to
         the rights hereby granted to the Licensee.

5.       The  Licensee  shall use each Trade Mark only upon or in
         connection  with  Relevant LAD  Products  that have been
         manufactured,  formulated, processed, packed, marked and
         labelled by or on behalf of the  Licensee in  accordance
         with   standards,   quality   control,   specifications,
         information,  formulae  and  instructions  laid  down or
         approved  by AZ from time to time.  AZ  confirms  to the
         Licensee  that such  requirement  shall be  satisfied in
         respect   of  any   Relevant   LAD   Product  if  it  is
         manufactured  in  accordance  with  applicable  GMP  and
         complies with the Marketing  Authorisation  for such LAD
         Product in force at the Effective  Date or as amended or
         replaced  from  time  to  time in  accordance  with  the
         requirements  of the  Competent  Authority  or with  the
         written  approval of AZ which shall not be  unreasonably
         withheld.

6.       The  Licensee  shall not seek to register  itself as the
         owner of any Trade Mark in any  Country or outside  the
         Territory without the written consent of AZ.



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7.       The Licensee  shall,  on being given  reasonable  notice
         and without  interference  with normal operations of the
         Licensee,    permit    AZ    and/or    its    authorised
         representatives,  at  their  cost,  to  inspect  the LAD
         Products  offered  for sale  under  the  Trade  Marks in
         accordance  with this Agreement and the methods by which
         they are manufactured,  formulated,  processed,  packed,
         marked and  labelled at the  premises of the Licensee or
         elsewhere,  and the Licensee shall do all such things as
         may  reasonably  be  necessary  in order to  satisfy  AZ
         and/or  its  authorised  representatives  that  the  LAD
         Products  conform to the  requirements  stated in clause
         5.  AZ  and/or  its  authorised  representatives  may be
         required  by the  Licensee  to  enter  into  appropriate
         obligations  with the Licensee to treat all  information
         obtained in the course of such inspection in confidence.

8.       The  Licensee  shall,  on  request,  promptly  supply AZ
         and/or its authorised  representatives with a reasonable
         number of random  samples of LAD Products  manufactured,
         formulated  or processed  for sale under the Trade Marks
         in  accordance  with  this  Agreement  in order  that AZ
         and/or  its  authorised   representatives   may  satisfy
         themselves   that  the  LAD  Products   conform  to  the
         requirements stated in clause 5.

9.       The Licensee shall  promptly  comply with all directions
         given  by  AZ  and/or  its  authorised   representatives
         (provided  such  directions do not violate  requirements
         of  local  laws  and are  entirely  consistent  with the
         practices and requirements  described in this Agreement)
         concerning  the use of the Trade  Marks on LAD  Products
         and/or on all notepaper,  invoices,  transfers,  labels,
         packages, package inserts,  advertising matter and other
         media of all kinds  issued or employed  by the  Licensee
         upon or in connection  with LAD Products.  If requested,
         the Licensee  shall  submit to AZ and/or its  authorised
         representatives  for  inspection  samples of items which
         incorporate  any of the Trade Marks.  Wherever  possible
         the  Licensee  shall insert on such items a statement to
         the  effect  that the  Products  are  "manufactured  and
         formulated under licence from AZ".



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10.      The  Licensee  shall ensure that each Trade Mark is used
         by it in the  Permitted  Format and not  otherwise.  For
         the  purpose of this  clause  "Permitted  Format"  means
         with the  addition  of a prefix or suffix  demonstrating
         that the Trade  Mark is being  used in respect of dental
         products,  such prefix or suffix being approved by AZ in
         writing  in  its  first  use,  such  approval  not to be
         unreasonably  withheld.  AZ's  approval  shall be deemed
         to be granted if:

         (i)     the  prefix or suffix  shall be  displayed  in a
                 manner  which is more  prominent  than the Trade
                 Mark, or

         (ii)    the prefix or suffix  shall be  displayed in all
                 respects  in the same  manner as the Trade  Mark
                 so as to  present  the Trade Mark and its prefix
                 or suffix as an  entity  in common  format,  and
                 (in either case)

         (iii)   the Licensee  receives no comment from AZ within
                 ten business  days of first  submission  of such
                 proposed  format  by  the  Licensee  to  AZ  for
                 approval.

11.      The use of the Trade  Marks  shall not be subject to the
         payment of any royalties by the Licensee to AZ.

12.      The  Licensee  accepts  full   responsibility   for  the
         actions  of  any  agent  or  distributor  which  it  may
         appoint  for the sale of LAD  Products  under  the Trade
         Marks and  recognises  that such agents or  distributors
         shall acquire no  proprietary  rights in the Trade Marks
         as  the  result  of  their  use of the  Trade  Marks  in
         connection with the sale of LAD Products.

13.      The Licensee  hereby  acknowledges  that the Trade Marks
         and the goodwill  therein remain the sole property of AZ
         and all use thereof by the  Licensee  shall enure to the
         benefit of AZ. The Licensee  shall  neither  acquire nor
         be  allowed to claim any  ownership  rights in the Trade
         Marks.



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14.      The  Licensee  shall  refrain  from any act which  would
         prejudice the  distinctiveness  or validity of the Trade
         Marks or which would  adversely  affect the rights of AZ
         in and to the Trade  Marks  and  undertakes  neither  to
         take any action  against the Trade Marks nor directly or
         indirectly   to  assist  any  third   party  to  do  so.
         Further,  the  Licensee  undertakes  that  it  will  not
         adopt,  register  or  use  at  any  time  a  trade  mark
         identical  with  or  confusingly  similar  to any of the
         Trade Marks.  The  provisions of this clause shall apply
         mutatis  mutandis  to AZ  with  respect  to  the  rights
         granted to the  Licensee  and the use of the Trade Marks
         by the Licensee hereunder.

15.1     Upon the  request of either  Party,  the  Parties  shall
         enter into a separate licence  agreement for any Country
         relating  to  the  grant  by AZ to the  Licensee  of the
         right to use the Trade Marks in respect of LAD  Products
         in such Country,  for  registration  or other  purposes.
         Such licence  agreement  shall be in the form set out in
         Schedule  4 or in  such  other  form  as may  be  agreed
         between the Parties based so far as  practicable  on the
         form  set  out  in  Schedule  4.  In  the  event  of any
         conflict  between the  provisions of this  Agreement and
         such separate licence agreement,  the provisions of this
         Agreement  shall  prevail.  In the event of  termination
         of this  Agreement in its  entirety,  all such  separate
         licence agreements shall automatically  terminate at the
         same time.

15.2     The  Licensee   shall  at  its  own  expense   apply  as
         necessary  to the Trade Mark  Authority  in each Country
         for the  Licensee  to be  recorded  as a licensee of the
         registered  Trade Marks for use in  connection  with the
         relevant LAD Product  Category,  and AZ shall assist the
         Licensee,  at the Licensee's request and expense in such
         activity,   including   the   execution  and  filing  of
         documents.  All fees and taxes  payable  in  respect  of
         the  registration  of the  Licensee  as  licensee of the
         Trade Marks and the  maintenance of the  registration of
         the  Licensee  as  licensee  of the Trade Marks shall be
         borne by the Licensee.

16.1     The Licensee and AZ shall promptly  notify each other of
         any  acts of  infringement,  suspected  infringement  or
         unfair  competition  involving  the Trade Marks,  and of
         any allegation  that any of the Trade Marks is or may be
         invalid or  unenforceable,  and of any  applications  or
         registrations  of  confusingly  similar  marks which may
         come to its attention.

16.2     AZ shall be  entitled  to defend  and/or  prosecute  all
         proceedings  involving  third  parties  relating  to the
         infringement  or  validity  of the  Trade  Marks and the
         Licensee  shall at the  request and expense of AZ do all
         such  things  as may be  reasonably  requested  by AZ to
         assist it in  taking or  resisting  any  proceedings  in
         relation to any such infringement or claim.

16.3     If AZ shall for 90 days  after the date of  notification
         referred  to in clause  16.1 fail to assume the  conduct
         of any  proceedings  referred  to in clause 16.2 or fail
         to conduct such  proceedings in a reasonable  commercial
         manner,  the Licensee shall be authorised,  as permitted
         by law,  to assume the  conduct  thereof and AZ shall at
         the  request  and  expense of the  Licensee  do all such
         things as may be  reasonably  requested  by the Licensee
         to assist it in taking or resisting such proceedings.

17.1     This  Agreement  shall not be terminable by AZ otherwise
         than in accordance  with the express  provisions of this
         Agreement.

17.2     This  Agreement  may be  terminated by the Licensee with
         respect  to any or all Trade  Marks by giving  notice in
         writing to AZ at any time.

17.3


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This  Agreement  may be  terminated by AZ by giving not less than
         12 months'  notice in writing to the  Licensee if during
         the  period  of 10  years  from the  Effective  Date the
         Licensee  or any  other  company  in the  same  group of
         companies   as  the   Licensee   shall  be   engaged  or
         interested  in the  manufacture  or sale  of  injectable
         local   anaesthetic   products   based  on  any  of  the
         Specified Drug  Substances,  other than Dental Products,
         provided  that such notice  shall be  withdrawn by AZ if
         during the  currency of the notice the  Licensee or such
         other  company  in the same  group of  companies  as the
         Licensee  shall  permanently  cease  to  be  engaged  or
         interested  in the  manufacture  or sale  of  injectable
         local   anaesthetic   products   based  on  any  of  the
         Specified Drug  Substances,  other than Dental Projects,
         and the  Licensee  shall  notify AZ in  writing  of such
         cessation.

17.4     This  Agreement may be terminated by AZ by giving notice
         in writing to the Licensee if the Licensee  shall commit
         any  serious  and  wilful  breach of any of the terms of
         this Agreement and shall fail to remedy such breach,  if
         capable of remedy,  within 60 days of  receiving  notice
         in writing from AZ specifying  such breach and requiring
         it to be  remedied.  It is  agreed  that  the use of any
         Trade  Mark  in  respect  of  any  product   other  than
         Relevant LAD Products shall  constitute a serious breach
         of this Agreement.

17.5     Without  prejudice  to the  provisions  of clause  17.4,
         this  Agreement  may be terminated by AZ in respect of a
         specific  Country  by giving  notice in  writing  to the
         Licensee if the  Licensee  shall  commit any serious and
         wilful  breach of any of the terms of this  Agreement so
         far as they  relate to such  Country  and shall  fail to
         remedy  such  breach,  if capable  of remedy,  within 60
         days of receiving  notice in writing from AZ  specifying
         such  breach  and  requiring  it to be  remedied.  It is
         agreed  that the use of any Trade  Mark in a Country  in
         respect of Relevant  LAD  Products  shall  constitute  a
         serious  breach of this  Agreement  if AZ shall not have
         granted to the Licensee  hereunder the right to use such
         Trade Mark in such Country.

18.1     Subject  to  clauses  16 and  18.2  and  subject  to the
         continuing  use of the Trade Marks by the  Licensee,  AZ
         undertakes to maintain the Trade Marks in force.

18.2


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If AZ no  longer  wishes  to  maintain  any  Trade  Mark  in  any
         Country,  it shall offer to transfer  such Trade Mark to
         the  Licensee.  If such offer  shall be  accepted by the
         Licensee,  AZ shall assign and transfer  such Trade Mark
         to the  Licensee and the Licensee  shall  register  such
         transfer  with the Trade Mark  Authority in such Country
         at  its  own  expense.   If  such  offer  shall  not  be
         accepted by the  Licensee,  AZ shall cease to be obliged
         to maintain such Trade Mark in such Country.

19.      The  Licensee   shall  not  be  entitled  to  assign  or
         sub-license any of its rights or obligations  under this
         Agreement  except to an  Affiliate  or with the  written
         consent of AZ which shall not be unreasonably withheld.

20.      Upon  termination of this Agreement,  the Licensee shall
         forthwith  discontinue all use of the Trade Marks (other
         than Trade Marks  transferred to the Licensee) and shall
         cease  to  make  any  reference  to  AZ in  its  printed
         matter,  labels or packages,  subject to the disposal of
         existing  stocks in such manner as may be agreed between
         the  Parties at the date of  termination.  The  Licensee
         shall not thereafter  make any use of the Trade Marks or
         any  colourable  imitation  thereof and hereby agrees to
         join  with  AZ  in  applying  for  cancellation  of  its
         recordal   as  a   licensee   of  the  Trade   Marks  on
         termination   of  this  Agreement  and  to  execute  any
         documents   that  may  be   required   to  effect   such
         cancellation.   The  provisions  of  this  clause  shall
         apply mutatis  mutandis in the event of  termination  of
         this  Agreement  insofar as it relates to any Country or
         Trade Mark.

21.      This  Agreement  shall be governed by and  construed and
         interpreted in accordance with the laws of England.

22.      All  disputes  which  may  arise  under,  out of,  or in
         connection  with, or in relation to this Agreement shall
         be  settled   under  the  Rules  of   Conciliation   and
         Arbitration of the International  Chamber of Commerce by
         three  arbitrators  appointed  in  accordance  with such
         Rules.  The  arbitral   proceedings  shall  be  held  in
         English and shall take place in London.

23.


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Notices  to be served by  either  Party on the other  shall be in
         writing  and shall be deemed  for the  purposes  of this
         Agreement  to be properly  given if sent by telefax with
         confirmed  receipt  thereof,  by  courier  service  with
         evidence  of  delivery or by  registered  mail,  postage
         prepaid,  to the other Party at its address as set forth
         below.  Either  Party may change  such  address  for the
         purposes of this  Agreement  by notice in writing to the
         other  Party.  A  notice  served  by  telefax  shall  be
         deemed to be served 24 hours after telefax  transmission
         and a notice served by  registered  mail shall be deemed
         to be served 4 days after posting by registered mail.

                 If to AZ:
                 AstraZeneca AB
                 For attn of President
                 SE-151 85 Sodertalje
                 Sweden
                 Facsimile:  +46 8 553 29010

                 with copies to:
                 AstraZeneca AB
                 Global Intellectual Property - Trade Marks
                 Alderley Park
                 Macclesfield
                 Cheshire
                 SK10 4TG

                 and to:
                 AstraZeneca PLC
                 For attn of Company Secretary
                 15 Stanhope Gate
                 London  W1Y 6LN
                 Facsimile:  (020) 7304 5151

                 If to the Purchaser:
                 Maillefer Instruments Holdings S.A.
                 For attn of General Manager
                 Chemin du Verger 3
                 CH-1338 Ballaigues
                 Switzerland
                 Facsimile:  +41 21 843 9293

                 with copy to:
                 DENTSPLY International Inc
                 570 West College Avenue
                 York PA 17404
                 Attention:  Secretary
                 Facsimile:  (717) 849 4753



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IN  WITNESS   WHEREOF  the   parties   hereto  have  caused  this
Agreement  to be executed  by their  respective  duly  authorised
representatives the day and year first above written.

For   and   on    behalf                   For and on behalf of
ofASTRAZENECA AB(publ)                     MAILLEFER INSTRUMENTS
                                           HOLDINGS S.A.
- -------------------------                  ------------------------



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