Effect of rotary systems and root canal preparation and dentin crack formation

Abdulkader Abdulelah Abulhamayel; Hamdi Abdullah Altukhays; Hatim Abdullah Alamri; Abdulrahman Ahmad Salem; Jummar Ammar Farrash; Adulelah Zaid Alshammari; Rawan Ibrahim Alhazmy; Asmaa Ahmed Alghamdi; Osama Sulaiman Alrasheed; Mona Dabshi Alanazi; May Mansour Alotaibi

doi:10.18203/2394-6040.ijcmph20214299

Authors

Abdulkader Abdulelah Abulhamayel Department of Endodontics, Khulais General Hospital, Khulais, Saudi Arabia
Hamdi Abdullah Altukhays Department of Endodontics, Ad Dawadmi General Hospital, Dawadimi, Saudi Arabia
Hatim Abdullah Alamri Department of Dental, King Fahad Armed Forcer Hospital, Jeddah, Saudi Arabia
Abdulrahman Ahmad Salem General Dentist, Ministry of Health, Mecca, Saudi Arabia
Jummar Ammar Farrash General Dentist, Ministry of Health, Alwajh, Saudi Arabia
Adulelah Zaid Alshammari College of Dentistry, Al-Jouf University, Sakaka, Saudi Arabia
Rawan Ibrahim Alhazmy College of Dentistry, Umm Al-Qura University, Mecca, Saudi Arabia
Asmaa Ahmed Alghamdi College of Dentistry, Umm Al-Qura University, Mecca, Saudi Arabia
Osama Sulaiman Alrasheed College of Dentistry, Al-Jouf University, Sakaka, Saudi Arabia
Mona Dabshi Alanazi Dental Department, Alsalam Hospital, Riyadh, Saudi Arabia
May Mansour Alotaibi Dental Medical Complex in West of Riyadh, Ministry of Health, Riyadh, Saudi Arabia

DOI:

https://doi.org/10.18203/2394-6040.ijcmph20214299

Keywords:

Endodontics, Treatment, Root canal preparation, Dentin cracks, Rotary system

Abstract

Evidence indicates that root canal preparation is a critical step upon which the prognosis of the endodontic treatment depends. Vertical root fractures can furtherly develop as propagations from the previously formed dentin cracks. Therefore, root canal preparation should be carefully approached with the minimal crack formation and careful dentin removal. Different modalities have been proposed in the literature and rotary systems are most commonly used nowadays. Although the reported efficacy of these modalities is high, evidence shows that they are usually associated with a considerable risk of crack formation. In the present literature review, we have discussed the effects of rotary instrumentation and root canal preparation on dentinal crack formation based on evidence from the different studies in the literature. Our evidence showed that all of the investigated approaches to prepare root canals adequately can result in crack formation. The different rotary instrumentations also showed variable frequencies of developing dentinal cracks, and evidence from some comparative investigations shows that ProTaper modalities are associated with the least frequencies of the events. However, to make a solid conclusion for clinical practice, further research is still needed to validate our current evidence.

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