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Simplify pulpectomy in primary molars with a single-file reciprocating system: a randomized controlled clinical trial

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Abstract

Objectives

To compare the clinical use of a single-file NiTi reciprocal system (sNiTi) to that of stainless steel hand file (SSH) instrumentation in primary tooth pulpectomy.

Materials and methods

A prospective randomized clinical trial was conducted in 34 healthy children aged 3–7 years. Thirty-seven mandibular primary molars were randomly assigned to two groups: sNiTi and SSH. Instrumentation time, obturation time, quality of obturation, and 6- and 12-month clinical and radiographic outcomes were compared between the two groups.

Results

The median instrumentation time using sNiTi (3.23 min) was significantly shorter than that for SSH (7.38 min). Obturation times were not different. The quality of obturation was significantly different only in the mesial root canals; overfilling was seen more in the sNiTi group, while underfilling occurred more in the SSH group. At 6 and 12 months, both groups showed comparable clinical and radiographic success regardless of the type of instrumentation.

Conclusions

sNiTi shortens instrumentation time with comparable obturation time, overall quality of obturation, and clinical and radiographic outcomes with SSH.

Clinical relevance

Pulpectomy is indicated to prevent premature loss of primary teeth with irreversible inflamed or infected pulp. However, it is complicated and time-consuming. sNiTi reciprocating system is an alternative to hand filing technique, avoiding multiple steps and simplifying pulpectomy procedures.

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Acknowledgments

The authors would like to acknowledge all staff in Phakpayoon Hospital, Phattalung Province, Southern Thailand and Asst. Prof. Dr. Chulaluk Komoltri, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand, for valuable statistic consultation.

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Authors and Affiliations

  1. Department of Pediatric Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand

    Kaewta Boonchoo, Pattarawadee Leelataweewud & Varangkanar Jirarattanasopha

  2. Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand

    Kallaya Yanpiset

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  1. Kaewta Boonchoo
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  2. Pattarawadee Leelataweewud
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  3. Kallaya Yanpiset
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Correspondence to Pattarawadee Leelataweewud.

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The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the Institutional Review Board, Faculty of Dentistry and the Faculty of Pharmacy, Mahidol University COA.No.MU-DT/PY-IRB 2016/056.1210, Bangkok, Thailand, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Boonchoo, K., Leelataweewud, P., Yanpiset, K. et al. Simplify pulpectomy in primary molars with a single-file reciprocating system: a randomized controlled clinical trial. Clin Oral Invest 24, 2683–2689 (2020). https://doi.org/10.1007/s00784-019-03130-5

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  • DOI: https://doi.org/10.1007/s00784-019-03130-5

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