Rotary endodontics in primary teeth – A review

Abstract

Endodontic treatment in primary teeth can be challenging and time consuming, especially during canal preparation, which is considered one of the most important steps in root canal therapy. The conventional instrumentation technique for primary teeth remains the "gold-standard" over hand instrumentation, which makes procedures much more time consuming and adversely affects both clinicians and patients. Recently nickel-titanium (Ni-Ti) rotary files have been developed for use in pediatric endodontics. Using rotary instruments for primary tooth pulpectomies is cost effective and results in fills that are consistently uniform and predictable. This article reviews the use of nickel-titanium rotary files as root canal instrumentation in primary teeth. The pulpectomy technique is described here according to different authors and the advantages and disadvantages of using rotary files are discussed.

Usage of Rotary Instruments in Root Canal Therapy of Deciduous Teeth - Review

“…5,20 Preparation Time The duration of preparation in pediatric patients is of great importance in terms of the cooperation of the child and the quality of treatment. 3,40 The duration of preparation in root canal treatments depends on the technique used, physician's experience and the type and number of instruments used. 25 Many studies were conducted to compare the preparation times of conventional stainless steel files and Ni-Ti rotary instruments and these stated that shorter preparation could be performed with rotary instruments.…”

“…The earlyloss of deciduous teeth in children may result in various harmful habits, an impaired eruption of permanent dentition, lack of space and crowdings. [1][2][3][4] Pulpectomy, which is recommended for pulpitis or necrosis of deciduous tooth, is a more conservative treatment method compared to tooth extraction. As for permanent teeth, the purpose of root canal treatment for deciduous teeth is to provide the disinfection of root canals by eliminating microorganisms, to prevent the reinfection of the tooth with a sealed filling and restoration, and to maintain the functionality of the tooth by preserving the health of periapical tissues.…”

“…Ni-Ti rotary instrument systems, which were developed for solving the limitations of stainless steel files and used since the 1980s, provide more successful and better conical shaping, better quality debridement and filling in a short time owing to their high flexibility. 2,3,5,7,8 The studies comparing traditional stainless steel files with Ni-Ti rotary instruments for root canal treatment are mostly focused on permanent teeth. The number of studies evaluating the use of rotary instruments for deciduous teeth is limited.…”

Reciprocating instrumentation in a maxillary primary central incisor: A protocol tested in a 3D printed prototype

“…In fact, the design and flexibility of NiTi alloy instruments allow preservation the original anatomy of curved canals and reduce errors during instrumentation, which may be especially useful in primary teeth, which present anatomic challenges due to physiological or pathological resorption. Moreover, due to its funnel‐shaped canal preparation, a more predictable uniform paste filling can be obtained after NiTi instrumentation in primary teeth . Some concern has been raised, however, if the use of rotary systems might generate more anxiety in children, as they are noisier and generate more vibration, leading to less cooperation …”

“…Moreover, due to its funnel-shaped canal preparation, a more predictable uniform paste filling can be obtained after NiTi instrumentation in primary teeth. 19 Some concern has been raised, however, if the use of rotary systems might generate more anxiety in children, as they are noisier and generate more vibration, leading to less cooperation. 4 The concept of a single-file reciprocating system was recently introduced in endodontics, 11 and its applicability in contemporary endodontic treatment in primary teeth has now been debated.…”