Endoguide for removing fractured retainers.
Patient was referred by prosthodontist for removal of fractured fiber posts inside canals 12 and 22.
It was decided to make an endoguide for removal and to use a 1.0mm implant drill.
After installing the guide, the retainers were worn down and the patient was referred back to the prosthodontist for new retainers.
Case carried out by students Fernanda Santiago and Nátima Alencar, from class 10 of the endodontics specialization course at HPG Brasília.
Endoguide In: Ribeiro et al. Guided endodontics as an alternative in the removal of fiberglass posts: an experience report. lINTRODUCTION
Guided Endodontics, or Endoguide, has emerged on the endodontic treatment scene as a technological advance for treating calcified canals, but also as a solution for removing fiberglass posts from canals that need treatment. Their effectiveness directs and favors dental treatment, providing maximum agility for the dental professional and comfort for the patient (REIS, 2015). The use of prefabricated fiberglass posts as intraradicular retainers has gained popularity in recent years due to their numerous advantages.
However, in some situations it may be necessary to remove these posts, such as in cases of inadequate conformation, undesirable length from a biomechanical point of view, the presence of periapical lesions or unsatisfactory endodontic treatment. Removing retainers requires attention and care, as any inattention to technique can compromise the remaining tooth structure, increasing the risk of fractures or root perforations (SILVA, et al., 2013).
In this context, Guided Endodontics offers safety for the removal procedure of fiberglass posts. The use of this technology reduces the risks previously associated with treatment, such as perforations and root deviations, especially in teeth with reanatomized crowns. In addition, Guided Endodontics provides a precise and targeted approach, resulting in better clinical outcomes and greater preservation of tooth structure (KOSTUNOV, 2020).
Endodontic treatment at various times causes a major change in the tooth structure, which is compromised by various factors, such as extensive caries, coronal fractures, endodontic treatment with excessive opening of the canal and preparation with accentuated wear, which weakens the remaining tooth structure. According to Silva et al. (2021), the use of fiberglass posts as intraradicular retainers has gained popularity in recent years due to their numerous advantages. However, in situations where there is inadequate conformation, undesired length or the presence of periapical lesions and/or unsatisfactory endodontic treatment, the removal of these posts may be necessary, requiring care to avoid further damage to the tooth structure.
Currently, fiberglass posts are widely used as intraradicular retainers due to their modulus of elasticity similar to dentin. Leal et al. (2018) report that these posts are used in 72% of oral rehabilitation cases, providing benefits such as reduced dental fractures, improved aesthetics, less chance of fracture, technical practicality, absence of corrosion, adhesive cementation and cost-effectiveness.
Endoguide for removing retainers
