EXHIBIT 21.1



Subsidiaries of PracticeWorks, Inc.



PracticeWorks, Inc. (the Company) currently has the
following wholly-owned first tier subsidiaries:



| | 1. |  | SoftDent, LLC, a Delaware limited liability company.
| | -- |  | ----------------------------------------------------

| | 2. |  | CADI Acquisition Corporation, a Colorado corporation.
| | -- |  | -----------------------------------------------------

| | 3. |  | PracticeWorks Systems, LLC, a Georgia limited liability company.
| | -- |  | ----------------------------------------------------------------

| | 4. |  | Swenam Holdings B.V., a Netherlands corporation (Swenam).
| | -- |  | -----------------------------------------------------------

| | 5. |  | PracticeWorks Australia Pty. Limited (f/k/a InfoCure Australia Pty. Limited), an Australian corporation (PracticeWorks Australia).
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| | 6. |  | Practiceworks Canada Ltd., a Canadian corporation.
| | -- |  | --------------------------------------------------

| | 7. |  | PracticeWorks Capital, Inc., a Delaware corporation.
| | -- |  | ----------------------------------------------------



The Company has the following indirect wholly-owned second tier subsidiaries:



| | 1. |  | PracticeWorks Limited (f/k/a Miniseries Limited), a United Kingdom limited company, a first tier subsidiary of Swenam and an indirect, wholly-owned subsidiary of the
Company.
| | -- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 2. |  | PracticeWorks Sweden AB (f/k/a Scandic Dental Computer Systems AB), a Swedish company, a first tier subsidiary of Swenam and an indirect, wholly-owned subsidiary of
the Company.
| | -- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 3. |  | PracticeWorks Orthodontics Pty. Limited (f/k/a InfoCure Orthodontics Pty.), an Australian corporation, a first tier subsidiary of PracticeWorks Australia and an
indirect, wholly-owned subsidiary of the Company.
| | -- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 4. |  | PracticeWorks France, a French corporation, a first tier subsidiary of Swenam and an indirect, wholly-owned subsidiary of the Company.
| | -- |  | --------------------------------------------------------------------------------------------------------------------------------------



The Company has the following indirect wholly-owned third tier subsidiaries:



| | 1. |  | Dentrak Limited, a United Kingdom limited company, a first tier subsidiary of PracticeWorks Limited, a second tier subsidiary of Swenam and an indirect, wholly-owned
subsidiary of the Company.
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| | 2. |  | Team Management Systems Limited, a United Kingdom limited company, a first tier subsidiary of PracticeWorks Limited, a second tier subsidiary of Swenam and an
indirect, wholly-owned subsidiary of the Company.
| | -- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 3. |  | SDS Computer Holdings Limited, a United Kingdom corporation, a first tier subsidiary of PracticeWorks Limited, a second tier subsidiary of Swenam and an indirect,
wholly-owned subsidiary of the Company.
| | -- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 4. |  | Trex Medical France, a French corporation, a first tier subsidiary of PracticeWorks France, a second tier subsidiary of Swenam and an indirect, wholly-owned
subsidiary of the Company.
| | -- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



---



The Company has the following
indirect wholly-owned fourth tier subsidiaries:



| | 1. |  | The Dental Health Education Centre Limited, a United Kingdom limited company, a first tier subsidiary of Team Management Systems Limited, a second tier of
PracticeWorks Limited, and an indirect wholly-owned subsidiary of the Company.
| | -- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 2. |  | Dental Network Information Services Limited, a United Kingdom limited company, a first tier subsidiary of Team Management Systems Limited, a second tier of
PracticeWorks Limited, and an indirect wholly-owned subsidiary of the Company.
| | -- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 3. |  | S.D.S. Computer Systems Limited, a United Kingdom limited company, a first tier subsidiary of SDS Computer Holdings Limited, a second tier of PracticeWorks Limited,
and an indirect wholly-owned subsidiary of the Company.
| | -- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 4. |  | Trophy Radiologie, a French company, a first tier subsidiary of Trex Medical France, a second tier of PracticeWorks France and an indirect wholly-owned subsidiary of
the Company.
| | -- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The Company has the following
indirect wholly-owned fifth tier subsidiaries, all of which are wholly-owned by Trophy Radiologie, a wholly-owned, fourth tier subsidiary of the Company:



| | 1. |  | Trophy Radiologie Italia Srl, an Italian company.
| | -- |  | -------------------------------------------------

| | 2. |  | Trophy Radiology Japan, Inc., a Japanese company.
| | -- |  | -------------------------------------------------

| | 3. |  | Trophy Radiologie GmbH, a German company.
| | -- |  | -----------------------------------------

| | 4. |  | Trophy Radiologie UK Limited, a United Kingdom limited company.
| | -- |  | ---------------------------------------------------------------

| | 5. |  | Trophy Dental, Inc., a Virginia corporation.
| | -- |  | --------------------------------------------

| | 6. |  | Trophy Benelux SA, a Belgian company.
| | -- |  | -------------------------------------

| | 7. |  | Trophy Radiologia Espana Sl, a Spanish company.
| | -- |  | -----------------------------------------------