Journal ArticleDOI
Homogeneity of root canal fillings performed by undergraduate students with warm vertical and cold lateral techniques.
TLDR
Inexperienced students obtained more homogeneous root canal fillings with the vertical compaction method; however, the probability of overextruding filling material with this method was high.Abstract:
Objectives The aim of this study was to determine radiographic and microscopic appearances of root canal fillings performed by undergraduate students using vertical and lateral compaction techniques. Study design Thirty dental students were instructed how to fill curved simulated canals with gutta-percha and sealer using lateral and vertical compaction. Digital radiographs were taken in buccolingual and mesio-distal projections; radiographs were evaluated for homogeneity and root canal wall contact. Plastic blocks with simulated canals were sectioned and cross sections were assessed under a light microscope for voids. Probabilities were expressed as odds ratios (OR) with 95% confidence intervals (CI). Results Radiographs showed that the chances of obtaining a homogeneous root canal filling by using a vertical compaction technique were 3 times higher in the coronal canal third (OR 3.2; CI: 1.9, 5.3), the same in the middle third, and 2 times higher in the apical third (CI: 1.1, 2.4) than when using lateral compaction. Microscopic evaluation of the same canals revealed that the chances of obtaining a homogeneous root canal filling by vertical compaction were 3 times higher in the coronal canal third (CI: 1.6, 5.8), almost 3 times higher in the middle canal third (CI: 1.6, 4.7), and about 10 times higher in the apical canal third (OR 9.8; CI: 2.2, 43.4) than by lateral compaction. The chances of transporting filling material beyond the apex were almost 5 times higher (OR 4.6; CI: 2.8, 7.6) when using vertical rather than lateral compaction. Conclusion Inexperienced students obtained more homogeneous root canal fillings with the vertical compaction method; however, the probability of overextruding filling material with this method was high.read more
Citations
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Journal ArticleDOI
Quality of root canal fillings performed by undergraduate dental students on single-rooted teeth
TL;DR: The quality of root canal fillings placed in single-rooted teeth by undergraduate dental students at the University Dental School and Hospital, Cork was acceptable (63% of root fillingsplaced in single rooted teeth were graded as 'adequate').
Journal ArticleDOI
Ten-year follow-up of root filled teeth: a radiographic study of a Danish population.
TL;DR: The root filling quality primarily affected the risk of persistent AP and to a smaller extent the risk in relation to extraction and persistence of AP, whereas the quality of the coronal restoration primarily affectedThe risk of extraction and to an lesser extent therisk of persistence.
Journal ArticleDOI
Technical quality assessment of root canal treatment performed by preclinical dental students at Taibah University, KSA.
TL;DR: There were varied levels of technical quality of root canal treatment performed by preclinical undergraduate dental students, and the outcome varied between unacceptable, slightly acceptable, acceptable, and perfectly acceptable.
Journal ArticleDOI
Micro-CT Evaluation of Voids in the Filling Material of Single-Rooted Teeth Obturated with Different Techniques
TL;DR: The aim of this study was to compare the volume of voids in a resin-based root canal filling (Resilon) with gutta percha using either cold lateral condensation or continuous wave of compaction filling techniques using computed X-ray micro-tomography (micro-CT).
Journal Article
Comparison of Obturation Quality in Modified Continuous Wave Compaction, Continuous Wave Compaction, Lateral Compaction and Warm Vertical Compaction Techniques
Mohsen Aminsobhani,Abdollah Ghorbanzadeh,Mohammad Reza Sharifian,Sara Namjou,Mohamad Javad Kharazifard +4 more
TL;DR: Within the limitations of this in vitro study, MCWC technique resulted in better adaptation of gutta-percha to canal walls than LC at all cross-sections with fewer voids and faster obturation time compared to other techniques.
References
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Journal ArticleDOI
A comparison of canal preparations in straight and curved root canals
TL;DR: Extracted human single-rooted permanent teeth were classified according to degree of root curvature and an examination of cross sections revealed that straight canals were much more readily prepared round than were curved canals.
Journal ArticleDOI
Periapical status of endodontically treated teeth in relation to the technical quality of the root filling and the coronal restoration
H. A. Ray,Martin Trope +1 more
TL;DR: The purpose of this study was to evaluate the relationship of the quality of the coronal restoration and of the root canal obturation on the radiographic periapical status of endodontically treated teeth.
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Outcome of primary root canal treatment: systematic review of the literature -- Part 2. Influence of clinical factors.
TL;DR: In this paper, the authors carried out meta-analyses to quantify the influence of the clinical factors on the efficacy of primary root canal treatment and to identify the best treatment protocol based on the current evidence.
Journal ArticleDOI
Treatment outcome in endodontics: the Toronto Study. Phase 1: initial treatment.
TL;DR: In this paper, the authors assessed the 4- to 6-yr outcome of initial endodontic treatment during Phase 1 of the Toronto Study and confirmed apical periodontitis as the main prognostic factor.