3 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Ab Ac Ad Ae Ai Al Au
Ale All Alu Alv

Alveolar crestal defects

Alveolar crestal defects are classified according to ridge height and width:

  • Class I – normal apicocoronal ridge height with loss of buccolingual tissue
  • Class II – normal buccolingual ridge width with loss of apicocoronal tissue
  • Class III – loss of width and height due to a combination of defects