Abstract: Objective To observe the clinical effect of vital pulp therapy in permanent molars with cariously exposed pulp that can not complete root canal therapy. Methods Thirty patients with carious exposed pulp permanent molars who could not compete root canal therapy were treated by partial pulpotomy (12 cases) or pulpotomy (18 cases). The bioceramic material iRoot BP Plus was used to preserve the pulp. The patients were followed up regularly after operation, and the treatment effect was observed by clinical and imaging examination. Results After 12-36 month follow-up, 26 cases showed a good clinical effect, no pain and the root and periapical were normal. Two cases had cold stimulation sensitivity after operation and developed to acute pulpitis. Two cases had buccal sinus. The pulp vitality test showed that the pulp was dead and the teeth were extracted. Conclusion The vital pulp therapy in permanent molar with cariously exposed pulp has good clinical effect. The operation of vital pulp therapy is easier and the treatment time was shorter than that of root canal therapy.

Key words: molar, dental pulp exposure, pulpotomy, permanent molar, cariously exposed pulp, vital pulp therapy, iRoot BP Plus