For dental pulp treatment of immature permanent teeth, direct pulp capping or partial/cervical pulpotomy (apexogenesis)
procedures can be used if the dental pulp is vital. MTA (Mineral Trioxide Aggregate) is regarded as the first choice dressing
material for these procedures because its higher success rate. It can be also used successfully for devitalized dental pulp which has
been treated by calcium hydroxide. This apexification procedure with MTA has a few advantage such as short treatment period
and increase of resistance against root fracture. Recently, regenerative endodontic treatment was introduced for devitalized
immature pulp. It can maintain pulp vitality and lead to continuing root development although the dental pulp was devitalized.