Intracanal reinforcement in anterior teeth to prevent fractures

Abstract

<p>The fracture of anterior teeth after root canal treatment is a real and multifactorial possibility. This is due to the weakening of the root due to lost of the remaining tooth added to oblique-existing occlusal forces. This fracture in addition to causing a masticatory dysfunction, will also influence the aesthetics of the patient. In prevention, one of the treatments used and widely accepted, is the use of intraradicular. These can be made of metal, carbon fiber, fiberglass and ceramics. The pins of metal and carbon fiber are very efficient but don't favor the aesthetic, as the pins fiberglass and ceramics are very resistant and favor aesthetics. Reinforcing with these biomaterials is beneficial and leads to a favorable prognosis. This study shows a case which the building could have prevented the intracanal fracture of an devitalized upper anterior tooth and makes a brief discussion about the available options for this type of rehabilitation. The use of reinforced glass fiber as reinforcement of the structure of devitalized teeth is indicated for the prevention of dental fractures. Cast ceramic cores are indicated for the insufficient coronary remaining to support the filling material.<strong></strong></p>

Novel hollow fiber sandwich composite post system: mechanical characteristics

“…Clearfil Core ® (Kuraray, New York, NY, USA) is a radiopaque, bi-component, self-curing chemical composite, with a density of 2.2 gcm 3 and a modulus of elasticity of 12.3 GPa. The catalyst paste is composed of bisphenol A diglycidylmethacrylate (Bis-GMA), triethyleneglycol dimethacrylate (TEGDMA), silanated glass filler, colloidal silica and catalysts; whereas the universal paste consists of bisphenol A diglycidylmethacrylate (Bis-GMA), triethyleneglycol di-subject to uniform confinement, and the maximum confining pressure provided by FRP is related to the volume and strength of the FRP and the diameter of the confined composite core ( Figure 2).…”

“…Where there is insufficient coronal tooth structure, intracanal posts are indicated to promote retention of the restorative material and reinforce the residual structure to ensure force distribution along the root. 3 The amount of tooth structure remaining is important in determining the resistance to fracture. 4 Selection of the appropriate type of post is paramount in reducing the incidence of root fractures and preserving the root in case of failure.…”