diff --git a/src/cli.rs b/src/cli.rs
index 0b2ea81..c2ba11f 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1,3 +1,4 @@
+use crate::display::format_dentition;
 use crate::lib::NotationKind;
 use crate::lib::Tooth;
 use clap::{Parser, Subcommand, ValueEnum};
@@ -20,6 +21,12 @@ enum Action {
         #[clap(value_parser)]
         value: String,
     },
+    Display {
+        #[clap(value_enum, short = 'n', long)]
+        notation: NotationKindArg,
+        #[clap(takes_value = false, short = 'p', long)]
+        primary: bool,
+    },
 }
 #[derive(Parser, Debug)]
 struct Args {
@@ -34,17 +41,23 @@ fn convert_kind(kind_arg: &NotationKindArg) -> NotationKind {
         NotationKindArg::Alphanumeric => NotationKind::Alphanumeric,
     }
 }
+
 pub fn run_cli() {
     let args = Args::parse();
 
     match &args.action {
         Action::Convert { from, to, value } => {
-            let tooth_result = Tooth::convert(&convert_kind(from), &convert_kind(&to), value);
+            let tooth_result = Tooth::from(value, &convert_kind(from));
+
             let output_string = match tooth_result {
+                Ok(tooth) => tooth.to(&convert_kind(to)),
                 Err(err) => err,
-                Ok(ok) => ok,
             };
+
             println!("{}", output_string);
         }
+        Action::Display { notation, primary } => {
+            println!("{}", format_dentition(!primary, &convert_kind(notation)))
+        }
     };
 }
diff --git a/src/lib.rs b/src/lib.rs
index 330fce4..801d45b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -230,18 +230,27 @@ impl Tooth {
         quadrant.to_owned() + &number
     }
 
-    pub fn convert(from: &NotationKind, to: &NotationKind, value: &str) -> Result<String, String> {
-        let tooth_result = match from {
+    pub fn from(value: &str, from: &NotationKind) -> Result<Self, String> {
+        match from {
             NotationKind::Iso => Tooth::from_iso(value),
             NotationKind::Uns => Tooth::from_uns(value),
             NotationKind::Alphanumeric => Tooth::from_alphanumeric(value),
-        };
+        }
+    }
+    pub fn to(&self, to: &NotationKind) -> String {
+        match to {
+            NotationKind::Iso => self.to_iso(),
+            NotationKind::Uns => self.to_uns(),
+            NotationKind::Alphanumeric => self.to_alphanumeric(),
+        }
+    }
+
+    #[deprecated(since = "1.0.0", note = "Use 'to' and 'from' directly")]
+    pub fn convert(from: &NotationKind, to: &NotationKind, value: &str) -> Result<String, String> {
+        let tooth_result = Tooth::from(value, from);
+
         match tooth_result {
-            Ok(tooth) => match to {
-                NotationKind::Iso => Ok(tooth.to_iso()),
-                NotationKind::Uns => Ok(tooth.to_uns()),
-                NotationKind::Alphanumeric => Ok(tooth.to_alphanumeric()),
-            },
+            Ok(tooth) => Ok(tooth.to(to)),
             Err(err) => Err(err),
         }
     }