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Journal of Peking University (Health Sciences) ›› 2022, Vol. 54 ›› Issue (1): 113-118. doi: 10.19723/j.issn.1671-167X.2022.01.018

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Evaluation of bioceramic putty repairmen iRoot and mineral trioxide aggregate in mature permanent teeth pulpotomy

QIAN Kun,PAN Jie,ZHU Wen-hao,ZHAO Xiao-yi,LIU Chang,YONG Wei()   

  1. Department of General Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology & NHC Research Center of Engineering and Technology for Computerized Dentistry & NMPA Key Laboratory for Dental Materials, Beijing 100081, China
  • Received:2021-09-13 Online:2022-02-18 Published:2022-02-21
  • Contact: Wei YONG E-mail:yongwei1004@sina.com
  • Supported by:
    New Clinical Technology Program of Peking University Hospital and Stomatology(PKUSSNCT-17A14)

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Abstract:

Objective: To evaluate the clinical characteristics and effectiveness of pulpotomy in mature permanent teeth with bioceramic putty repairmen iRoot and mineral trioxide aggregate (MTA). Methods: Pulpotomy was performed on mature permanent premolars and molars with carious exposures at the Department of General Dentistry of Peking University School and Hospital of Stomatology,from November 2017 to September 2019. The patients were randomly divided into 2 groups, Group iRoot (n=22) and Group MTA (n=21). In Group iRoot, bioceramic putty repairmen iRoot was used as pulp capping agent, while in Group MTA, mineral trioxide aggregate was used as pulp capping agent. All the patients had signed informed consent forms. The clinical efficacy was evaluated by clinical examinations (temperature and electrical activity test) and imaging examinations 3, 6, and 12 months after surgery. Blinding was used for the patients and evaluators, but due to the obvious differences in the properties of the two pulp capping agents, the blinding method was not used for the treatment provider (the attending physician). Results: There was no significant difference in gender, average age, dentition and tooth position distribution between the two groups (P>0.05). In the study, 7 cases were lost to follow-up 12 months after operation (4 cases in Group iRoot, and 3 cases in Group MTA). One case in each of the two groups had transient sensitivity at the end of the 3-month follow-up, and the pulp vitality was normal at the end of the 6-month follow-up. One case in Group iRoot showed sensitivity at the end of the 12-month follow-up. The success rates of the two groups at the end of 12-month follow-up were 100%, and the cure rates were 94.4% (Group iRoot) and 100% (Group MTA), respectively, and the difference was not statistically significant (P>0.05). No cases in Group iRoot had obvious crown discoloration, while 3 cases in Group MTA had. Conclusion: The clinical characteristics and effectiveness of pulpotomy in mature permanent teeth with bioceramic putty repairmen iRoot were similar with MTA. Bioceramic putty repairmen iRoot is an acceptable material when used in pulpotomy of mature permanent teeth. Because it is not easy to cause tooth discoloration after treatment and is convenient to operate, bioceramic putty repairmen iRoot has a better clinical application prospect.

Key words: Pulpotomy, Mature permanent teeth, Bioceramic putty repairmen, Mineral trioxide aggregate

CLC Number: 

  • R781.3

Table 1

Descriptive data"

Items Group iRoot (n=22) Group MTA (n= 21) t/χ2 P value
Gender, n
Male 6 7 0.187 0.665
Female 16 14
Average age/years, M(Min, Max) 30.7 (16, 59) 30.4 (21, 55) 0.093 0.926
Jaw, n
Upper 16 12 1.149 0.284
Lower 6 9
Tooth position, n
Premolar 9 6 0.72 0.396
Molar 13 15

Figure 1

Radiographic findings of a maxillary right first molar after pulpotomy with bioceramic putty repairmen iRoot A, pre-operative radiograph; B, 3-month follow-up radiograph; C, 6-month follow-up radiograph; D, 12-month follow-up radiograph."

Figure 2

Radiographic findings of a maxillary left first molar after pulpotomy with mineral trioxide aggregate A, pre-operative radiograph; B, 3-month follow-up radiograph; C, 6-month follow-up radiograph; D, 24-month follow-up radiograph."

Figure 3

Six-month follow-up clinical photos of mandibular left first molars after pulpotomy A, pulpotomy with mineral trioxide aggregate; B, pulpotomy with bioceramic putty repairmen iRoot."

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