Journal ArticleDOI
Retreatment of endodontic fillings.
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TLDR
Results showed that root-fillings with technical shortcomings could, following retreatment, be markedly improved as regards effectiveness of seal and distance to the apex, and renewed endodontic treatment whenever possible is the method of choice when treating defective endodons complicated with pathologic processes periapically.Abstract:
— Effects of endodontic retreatment on quality of seal and periapical healing were assessed among 660 previously root-filled roots. The roots were divided into either of two groups according to presence or absence of pathologic alterations in the periapical area. The retreatments, which were carried out by dental students, involved a thorough chemomechanical debridement of the root-canal system aiming to control infection. Following a 2-year observation period 556 roots were reexamined clinically and radiographically. The results showed that root-fillings with technical shortcomings could, following retreatment, be markedly improved as regards effectiveness of seal and distance to the apex. A large number of lumina discernible apical to root-filling could also be treated and filled. Seventy-eight percent of the cases with pathologic lesion present periapically prior to retreatment either completely healed or displayed an obvious size-reduction of the process Retreatments carried out because of technical inadequacies alone were successful in 94% of the cases. It was concluded that renewed endodontic treatment whenever possible is the method of choice when treating defective endodontic fillings complicated with pathologic processes periapically. Apical surgery may be attempted if no signs of healing are apparent following observation.read more
Citations
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Journal ArticleDOI
Microbiologic analysis of teeth with failed endodontic treatment and the outcome of conservative re-treatment
TL;DR: The microbial flora in canals after failed endodontic therapy differed markedly from the flora in untreated teeth, and infection at the time of root filling and size of the periapical lesion had a negative influence on the prognosis.
Journal ArticleDOI
Mechanical preparation of root canals: shaping goals, techniques and means
TL;DR: The main problems with the methodology of research relating to root canal preparation are discussed while the remaining section critically reviews current endodontic instruments and shaping techniques.
Journal ArticleDOI
Modern Endodontic Surgery Concepts and Practice: A Review
Syngcuk Kim,Samuel I. Kratchman +1 more
TL;DR: This review attempted to provide the most current concepts, techniques, instruments and materials with the aim of demonstrating how far endodontic microsurgery has come.
Journal ArticleDOI
Outcome of secondary root canal treatment: a systematic review of the literature
TL;DR: The presence of pre-operative periapical lesion, apical extent of root filling and quality of coronal restoration proved significant prognostic factors with concurrence between all three strands of evidence whilst the effects of 1 degrees RCT history and 2 degrees R CT protocol have been poorly investigated.
Journal ArticleDOI
Rotary NiTi instrument fracture and its consequences.
Peter Parashos,Harold H. Messer +1 more
TL;DR: Clinical recommendations concerning prevention and management of fracture of endodontic instruments are derived from an assessment of the literature presented.
References
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Journal ArticleDOI
Factors affecting successful repair after Root Canal Therapy
Journal ArticleDOI
A study of failures after endodontic surgery by radiographic, histologic and stereomicroscopic methods.
Jorgen Rud,J.O. Andreasen +1 more
TL;DR: It was found that most failures could be related to an insufficient debridement and canal obturation, and the root filling materials used were found to be non-irritant to the periapical tissues.
Journal ArticleDOI
Influence of apical overinstrumentation and overfilling on re-treated root canals.
TL;DR: A clinical radiographic follow-up investigation was conducted to determine the effect of overinstrumentation and overfilling on re-treated root canals, and a significantly lower frequency of completely regenerated periapical lesions was observed than if these two complications did not occur.
Journal ArticleDOI
Correlation of the positive culture to the prognosis of endodontically treated teeth: a clinical study
Bernard J. Zeldow,John I. Ingle +1 more
Journal ArticleDOI
Radiographic assessment of an endodontic treatment method.
TL;DR: The results indicated that the root-filling materials used are suitable but that the Root-Filling technique is difficult to master and needs to be reformed.
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