apoxThis procedure encourages the root to continue development as the pulp is healed. This will allow for the exposed tissue to heal against the MTA, keeping the pulpal tissues vital and encouraging further maturation and growth of the tooth. This process will enable the tip of the root (apex) to continue to close as the child gets older. In turn, the walls of the root canal will thicken, and the tooth will become stronger. If the pulp heals, no additional treatment will be necessary. The more mature the root becomes, the better the chance for the survival of the tooth.