diff --git a/slave variables documentation - Pregmod.txt b/slave variables documentation - Pregmod.txt
index 077a7444f787f8b51b8f48b3331a05f7327b454a..f714f85bc48bf50093ea454ffe8f8833a6415b55 100644
--- a/slave variables documentation - Pregmod.txt	
+++ b/slave variables documentation - Pregmod.txt	
@@ -2030,6 +2030,7 @@ teeth type
 accepts string
 "normal"
 "crooked"
+"gapped"
 "straightening braces"
 "cosmetic braces"
 "removable"