关键词: 年轻恒牙, 牙髓治疗, 活髓保存

Abstract:

 The purpose of vital pulp therapy for immature permanent tooth is to protect activity and function of the crown or root residual pulp tissue， and promote the root physiological development. It has been recommended that vital pulp therapy should be performed only to preserve the healthy pulp tissue in teeth with normal pulp or teeth with reversible pulpitis or teeth without periapical lesions. But up to now， there is no reliable means that can precisely reflect the pulp condition. Currently， several studies have reported successful outcome of vital pulp therapy in vital teeth with cariously exposed pulp，or with signs and symptoms of irreversible pulpitis or with periapical lesions. In clinics， we should make full use of the fact that pulp tissue in immature permanent teeth has strong ability of tissue repair and regeneration. So a more conservative pulp therapy should be taken for young permanent teeth in order to obtain a better prognosis.

Key words: immature permanent teeth, pulp therapy, vital pulp therapy