Dentistry

Root Canal Transportation's Impact on Canal Orifice Dentin by Minimally Invasive Endodontic Access

Thyssen Margolis^* Department of Dentistry, University of Melbourne, Melbourne, Australia
^*Correspondence: Thyssen Margolis, Department of Dentistry, University of Melbourne, Melbourne, Australia, Email:

Received: 01-Aug-2022, Manuscript No. DCR-22-18370; Editor assigned: 05-Aug-2022, Pre QC No. DCR-22-18370 (PQ); Reviewed: 22-Aug-2022, QC No. DCR-22-18370; Revised: 29-Aug-2022, Manuscript No. DCR-22-18370 (R); Published: 06-Sep-2022, DOI: 10.35248/2161-1122.22.12.598

About the Study

According to the form and quantity of remaining tooth substance, endodontically treated teeth have a higher risk of fracture (79% of vertical root canal cracked teeth were endodontically treated teeth). Stress generated during root canal shaping is thought to be the cause of the link between a tooth that has had endodontic treatment and root canal fractures. Vertical root fracture is brought on by dentin fissures that develop during root canal shaping, persistent root canal disinfectant usage, and too much vertical filling pressure during root canal obturation.

Recent years have seen a rise in the popularity of Minimally Invasive Endodontics (MI Endo), which involves root canal contouring by sparingly removing dentin while leaving the dentin around the canal opening intact. Straight-line access is one of the most crucial steps in the fundamental process of canal shaping and is required before shaping and obturation. Accurate root canal shape is facilitated by the removal of diseased dentin at the canal orifice using a straight line of access and relief of the degree of root canal curvature. Straight-line access, however, is linked to increased orifice dentin shape, decreased dentin stiffness, and decreased fracture resistance. It is more crucial to preserve the crown occlusal surface dentin than the orifice dentin of the upper third of the root canal. The structural upkeep of the crown dentin is related to the contouring of the access cavity by MI Endo; nevertheless, it is debatable if MI access to the cervical dentin will increase the root's resistance to fracture. Overall, MI Endo root canal shaping of the orifice dentin retains a stronger fracture resistance than straight-line access root canal shaping.

Because cavity access and root canal enlargement increase the risk of root canal fracture, endodontic therapies for teeth have been advocated. In particular, studies have linked the distribution of occlusal stress to root canal fracture. MI Endo is advised for MI access of a cavity and root canal preparation utilizing Ni-Ti files in order to lower the risk of root canal fracture. When preparing a root canal, a K file is crucial. At this stage, it is possible to measure the root canal's length, apical foramen diameter, curvature, and calcification. Additionally, the most crucial stage in root canal preparation in curved root canals is the elimination of the orifice dentin ridge since doing so makes it easier to put files into the apical foramen. Particularly, straight-line access and the usage of glide routes have been recognized as crucial methods for the secure application of Ni-Ti files.

Due to excessive orifice dentin cutting, straight-line access, a fundamental principle of root canal preparation, decreases fracture resistance and results in root fracture. High levels of stress are concentrated in the cervical region of teeth that have undergone endodontic treatment, and extensive orifice dentin cutting is thought to make teeth more prone to fractures. According to these study data, limiting flare formation through straight-line access may lower the incidence of cervical fracture. Additionally, when normal load is applied to the occlusal surface, the root canal without straight-line access results in stress dispersion in the orifice dentin. While the straight-access root canal focuses stress and has little fracture resistance. The findings of this investigation demonstrated that MI Endo-treated teeth were less prone to cervical fracture. Previous research has demonstrated that in teeth that have undergone endodontic treatment, the preservation of orifice dentin is correlated with the maintenance of long-term occlusal function.