diff --git a/db/nursingHome.db b/db/nursingHome.db
index 262eb5d..73842f5 100644
Binary files a/db/nursingHome.db and b/db/nursingHome.db differ
diff --git a/src/main/java/de/hitec/nhplus/treatment/AllTreatmentController.java b/src/main/java/de/hitec/nhplus/treatment/AllTreatmentController.java
index 3384c3f..df8b368 100644
--- a/src/main/java/de/hitec/nhplus/treatment/AllTreatmentController.java
+++ b/src/main/java/de/hitec/nhplus/treatment/AllTreatmentController.java
@@ -61,7 +61,7 @@ public class AllTreatmentController {
     public ComboBox<String> comboBoxNurseSelection;
 
     @FXML
-    private Button buttonDelete;
+    private Button buttonLock;
 
     private final ObservableList<Treatment> treatments = FXCollections.observableArrayList();
     private TreatmentDao dao;
@@ -100,12 +100,12 @@ public class AllTreatmentController {
         this.columnDescription.setCellValueFactory(new PropertyValueFactory<>("description"));
         this.tableView.setItems(this.treatments);
 
-        this.buttonDelete.setDisable(true);
+        this.buttonLock.setDisable(true);
         this.tableView
                 .getSelectionModel()
                 .selectedItemProperty()
                 .addListener((observableValue, oldTreatment, newTreatment) ->
-                        AllTreatmentController.this.buttonDelete.setDisable(newTreatment == null)
+                        AllTreatmentController.this.buttonLock.setDisable(newTreatment == null)
                 );
 
         this.createComboBoxData();
@@ -316,4 +316,21 @@ public class AllTreatmentController {
         });
 
     }
+
+    @FXML
+    public void handleLock(){
+        Treatment selectedItem = this.tableView.getSelectionModel().getSelectedItem();
+        if (selectedItem == null){
+            return;
+        }
+
+        try {
+            selectedItem.setLocked(true);
+            this.dao.update(selectedItem);
+        }catch (SQLException exception){
+            exception.printStackTrace();
+        }
+        readAllAndShowInTableView();
+    }
+
 }
diff --git a/src/main/java/de/hitec/nhplus/treatment/LockedTreatmentController.java b/src/main/java/de/hitec/nhplus/treatment/LockedTreatmentController.java
index c27a624..c993dcb 100644
--- a/src/main/java/de/hitec/nhplus/treatment/LockedTreatmentController.java
+++ b/src/main/java/de/hitec/nhplus/treatment/LockedTreatmentController.java
@@ -87,9 +87,21 @@ public class LockedTreatmentController {
     @FXML
     private void unlockTreatment()
     {
+        Treatment selectedItem = this.tableView.getSelectionModel().getSelectedItem();
+        if (selectedItem == null) {
+            return;
+        }
 
+        try {
+            selectedItem.setLocked(false);
+            this.treatmentDao.update(selectedItem);
+        } catch (SQLException exception) {
+            exception.printStackTrace();
+        }
+        readAllAndShowInTableView();
     }
 
+
 }
 
 
diff --git a/src/main/java/de/hitec/nhplus/treatment/database/TreatmentDao.java b/src/main/java/de/hitec/nhplus/treatment/database/TreatmentDao.java
index ce82860..c5fb88c 100644
--- a/src/main/java/de/hitec/nhplus/treatment/database/TreatmentDao.java
+++ b/src/main/java/de/hitec/nhplus/treatment/database/TreatmentDao.java
@@ -71,7 +71,7 @@ public class TreatmentDao extends DaoImp<Treatment> {
 
     @Override
     protected PreparedStatement getReadAllStatement() throws SQLException {
-        final String SQL = "SELECT * FROM treatment";
+        final String SQL = "SELECT * FROM treatment where isLocked = false";
         return this.connection.prepareStatement(SQL);
     }
 
diff --git a/src/main/resources/de/hitec/nhplus/treatment/AllTreatmentView.fxml b/src/main/resources/de/hitec/nhplus/treatment/AllTreatmentView.fxml
index 99d5301..4ccbfec 100644
--- a/src/main/resources/de/hitec/nhplus/treatment/AllTreatmentView.fxml
+++ b/src/main/resources/de/hitec/nhplus/treatment/AllTreatmentView.fxml
@@ -88,11 +88,11 @@
             </center>
             <right>
                 <Button
-                        fx:id="buttonDelete"
+                        fx:id="buttonLock"
                         mnemonicParsing="false"
-                        onAction="#handleDelete"
+                        onAction="#handleLock"
                         prefWidth="200.0"
-                        text="Löschen"
+                        text="Sperren"
                         GridPane.columnIndex="2"
                 />
             </right>