Influence of the sealer and a plug in coronal leakage after post space preparation

Holland, R; Murata, Sueli Satomi; Silva, Monica Nunes da; Dezan, Elói; Souza, Valdir de; Bernabé, Pedro Felício Estrada

doi:10.1590/s1678-77572004000300012

Cited by 3 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While such solvents may be used in endodontic re-treatment cases, they are usually avoided for post space preparation due to concerns that the remaining GP in the apical third of the root may shrink because of evaporation of solvent, which would compromise the seal of the remaining root filling [ 2 , 22 ]. Insoluble materials have been used in the past as a coronal plug to protect the apical root filling from bacterial contamination after post space preparation [ 23 , 24 ]. The use of a coronal plug followed by solvents in the post space may improve cleanliness and should be explored further.…”

Section: Discussionmentioning

confidence: 99%

Residual Endodontic Filling Material after Post Space Preparation: A Confocal Microscopic Study

Teoh

Walsh

2017

Materials

View full text Add to dashboard Cite

This laboratory study assessed removability of endodontic alkaline cements and resin sealers using coronal cross-sectional slices of roots with single canals. Materials were labelled with 0.1% (w/w) sodium fluorescein prior to mixing so that confocal microscopy could be used to quantify material remaining on the walls of post spaces, to assess cleanliness. Roots of extracted teeth were prepared using rotary NiTi instruments then obturated using lateral condensation with gutta percha and epoxy resin sealers (AH-Plus™ or Zirmix™), or were filled by injecting mineral trioxide aggregate (MTA) cement (GC Nex™ MTA or MTAmix™) or a hard-setting calcium hydroxide cement (Supercal™). Brown (#3) ParaPost™ drills were used at 600 rpm with a torque setting of 3 N cm−1 for 2 min to remove 5 mm of the root filling. Roots were embedded and coronal slices examined by confocal microscopy, with the perimeter of the drill channel divided into clean, unclean and non-accessible regions. The choice of material affects cleanliness, with MTA being the most difficult and calcium hydroxide cement the easiest to remove. With epoxy resin-based sealers, almost half of the accessible canal walls remained coated with remnants of sealer after post space preparation.

show abstract

Section: Discussionmentioning

confidence: 99%

Residual Endodontic Filling Material after Post Space Preparation: A Confocal Microscopic Study

Teoh

Walsh

2017

Materials

View full text Add to dashboard Cite

show abstract

“…The main objective of root canal obturation is to achieve a tight seal of the root canal system which in turn enhance the healing process of periapical and apical regions after endodontic therapy [19].…”

Section: Root Canal Sealermentioning

confidence: 99%

Calcium Hydroxide in Endodontics: An Overview

Ba-Hattab¹,

Al-Jamie²,

Aldreib³

et al. 2016

OJST

View full text Add to dashboard Cite

Background: Calcium hydroxide has been used in dentistry since several decades. It has been used in a number of applications in the field of endodontics such as root resorption, intracanal medicament, and root canal sealers. Although this material exhibits several advantages, it also has some limitations. Objectives: To review the role of calcium hydroxide in the field of endodontics, focusing on its mechanism of action, antimicrobial effects, different applications, cytotoxicity or biocompatibility, and its removal from the root canals. Materials and Methods: An electronic search was done using different databases. Out of 2,664 articles, only 33 articles have been selected to be included in this review because they are directly related to the topic and matched the inclusion criteria of this review: "Language: English" and "Year: 2000-2016". Results: The antimicrobial effect of calcium hydroxide is controversial. Although some studies supported the effectiveness of calcium hydroxide against some bacteria others reported its limitation against fungal infection. Calcium hydroxide can be used effectively as intracanal medicament, root canal sealer, in weeping canals, for perforation management and root resorption. Conclusions: Despite the limitation of antimicrobial activity of calcium hydroxide, it is used effectively in a number of treatment modalities in endodontics. Due to its biological and therapeutical properties, calcium hydroxide is the material of choice for all pulp therapy. However, when using calcium hydroxide as a dressing material in root canal treatment caution should be taken to prevent the overextension of the paste beyond the tooth apex and avoid the harmful side effects.

show abstract

“…For this reason, according to Barbosa et al (5), coronal leakage could reach the periapical tissues in totally filled canals, which would be more evident in the followings situations: 1.after post space preparation, due to the smaller extension of the remaining material; 2.due to poor adaptation of the filling material to the root canal walls during post space preparation; 3.due to contamination of the canal portion from which the obturation was removed during impression procedures and post placement. Thus, some authors have investigated the protection offered by the different types of root canal sealer, as well as by the placement of a protection plug over the remaining filling material after post space preparation, made from different materials, such as Coltosol (6) and Lumicon (5).…”

Section: Introductionmentioning

confidence: 99%

Periapical tissue healing after post space preparation with or without use of a protection plug and root canal exposure to the oral environment: study in dogs

et al. 2007

Self Cite

View full text Add to dashboard Cite

The purpose of this study was to evaluate the influence of coronal leakage on the healing of dogs' periapical tissues after root canal filling, post space preparation and protection or not with a temporary sealer plug. Forty root canals of dogs' teeth were instrumented and filled by the lateral condensation technique with gutta-percha points and Endomethasone or CRCS sealers. After post space preparation, the remaining filling material was protected or not with a plug of temporary Coltosol sealer and exposed to the oral environment for 90 days. Thereafter, the animals were sacrificed and the specimens were removed and prepared for histomorphological and histobacteriological analysis. The findings revealed 35% of microbial leakage in the groups without plugs and 15% of leakage in the groups with plugs. Statistical analysis showed that the use of a Coltosol plug improved significantly the histomorphological results regardless of the type of root canal sealer (p=0.05) and that CRCS and Endomethasone sealers showed similar results (p>0.05).

show abstract

Influence of the sealer and a plug in coronal leakage after post space preparation

Cited by 3 publications

References 14 publications

Residual Endodontic Filling Material after Post Space Preparation: A Confocal Microscopic Study

Residual Endodontic Filling Material after Post Space Preparation: A Confocal Microscopic Study

Calcium Hydroxide in Endodontics: An Overview

Periapical tissue healing after post space preparation with or without use of a protection plug and root canal exposure to the oral environment: study in dogs

Contact Info

Product

Resources

About