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Retreatment Procedures (retreatment + procedure)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

The prognosis and expected outcome of apical surgery

ENDODONTIC TOPICS, Issue 1 2005
SHIMON FRIEDMAN
Clinicians should possess current knowledge about the prognosis and expected outcome of endodontic treatment, including apical surgery. This knowledge cannot be acquired by indiscriminate review of the many available studies because they vary in the level of evidence they provide. Therefore, seven studies that best comply with methodology criteria defining the levels of evidence were selected and used as the basis of this review. In spite of their methodological consistency, the outcomes reported in these studies still differ considerably, mainly because of differences in inclusion criteria. According to these studies, 37,91% of teeth can be expected to be healed, while up to 33% can still be healing several years after surgery. Importantly, 80,94% of teeth can remain in symptom-free function, even if they are not healed. Several pre-operative factors may influence the outcome of treatment; the outcome may be better in teeth with small lesions and excessively short or long root canal fillings, and it may be poorer in teeth treated surgically for the second time. With regard to intra-operative factors, the choice of the root-end filling material and the quality of the root-end filling may influence the outcome, while the retrograde retreatment procedure clearly offers a better outcome than the standard root-end filling. In summary, the expected outcome of apical surgery is good and therefore, before considering tooth extraction and replacement, apical surgery should be attempted when it is feasible. [source]

The efficacy of gutta-percha removal using ProFiles

INTERNATIONAL ENDODONTIC JOURNAL, Issue 4 2001
J. J. Ferreira
Abstract Aim The purpose of this study was to compare the efficacy in vitro of gutta-percha removal from obturated root canals using ProFiles. Methodology Forty-eight human root canals with curvatures ranging between 25 and 45° were instrumented by a standardized method to an apical ISO size 30 and 0.04 taper. They were obturated with vertically condensed gutta-percha. Retreatment was performed with the following techniques: K-Flexofiles with chloroform; Hedstrom files with chloroform; ProFiles 0.04 taper with chloroform; ProFiles 0.04 taper alone. The time for each method was measured. A microfocal macroradiographic technique was used to evaluate the amount of debris remaining within the root canals after the retreatment procedure. Roots were divided into apical, middle and coronal parts and scored on a scale of 0 (no debris) to 3 (>50% of walls covered with debris) by trained observers on two separate occasions. Results The scores for debris remaining within root canals for K-Flexofiles with chloroform and ProFiles with chloroform were the lowest and not significantly different at all three levels of the roots examined (P > 0.05), and Hedstrom files with chloroform and ProFiles with chloroform were not significantly different in the apical part. In general, coronal parts were cleaner than apical parts. The difference in scores at the three levels between ProFiles with chloroform and ProFiles alone were each significant (P < 0.01). Instrumentation using ProFiles with chloroform (mean 6.42 min) was significantly faster than using hand files (mean 11.67 min) (P < 0.01). Conclusion The results indicated that ProFiles or hand files with chloroform produced similarly clean canals, but that ProFiles were faster. [source]

Postoperative discomfort associated with surgical and nonsurgical endodontic retreatment

DENTAL TRAUMATOLOGY, Issue 2 2000
T. Kvist
Abstract , Endodontic retreatment decision-making must include an appraisal of the costs of the different strategies proposed. In addition to direct costs, postoperative discomfort may have other consequences in terms of time off work, unscheduled visits and suffering. To establish a foundation for the appraisal of such indirect and intangible costs the present study was set up in which patients' assessments of pain and swelling after surgical and nonsurgical retreatment procedures were recorded. Ninety-two patients with 95 root-filled incisors and canine teeth exhibiting apical periodontitis were included in the study. The mode of retreatment was randomly assigned. Each day during the first post-treatment week patients assessed their degree of swelling and pain on horizontal 100-mm visual analog scales (VAS). The scales ranged from "no swelling" to "very severe swelling" and "no pain" to "intolerable pain", respectively. Consumption of self-prescribed analgesics and time off work were also recorded. Significantly more patients reported discomfort after surgical retreatment than after nonsurgical procedures. High pain scores were most frequent on the operative day while swelling reached its maximum on the first postoperative day followed by progressive decrease both in frequency and magnitude. Postoperative symptoms associated with nonsurgical retreatment were less frequent but reached high VAS values in single cases. Analgesics were significantly more often consumed after periapical surgery. Patients reported absence from work mainly due to swelling and discoloration of the skin. This was found to occur only after surgical retreatment. Conclusively, surgical retreatment resulted in more discomfort and tended to bring about greater indirect costs than nonsurgical retreatment. [source]

Treatment choices for negative outcomes with non-surgical root canal treatment: non-surgical retreatment vs. surgical retreatment vs. implants

ENDODONTIC TOPICS, Issue 1 2005
STEVEN A. COHN
The revision of negative treatment outcomes is a significant part of current endodontic practice. Both non-surgical and surgical retreatment procedures share the problem of a significant negative outcome in the presence of apical periodontitis. More positive results may be achieved in certain teeth with a combination of both procedures rather than either alone. However, there are pressures to replace these ,failed' endodontically treated teeth with implants. When comparable criteria are applied to outcomes, the survival rates of endodontic treatment and implant placement are the same. Time, cost, and more flexible clinical management indicate that endodontic retreatment procedures should always be performed first unless the tooth is judged to be untreatable. Endodontists should be trained in implantology to assist patients and referring colleagues in making informed treatment decisions. [source]

Cemental tear: a case report

INTERNATIONAL ENDODONTIC JOURNAL, Issue 1 2006
M. L. Stewart
Abstract Aim, To report a case of a cemental tear. Summary, A case is reported of a patient with a history of trauma, root canal treatment and retreatment procedures to eliminate recurring sinus tracts. An exploratory surgery, extraction, and biopsy resulted in a diagnosis of cemental tear. Key learning points, ,,The detachment of a fragment of cementum is described as a cemental tear. ,,Cemental tears have been reported in the periodontal literature associated with localized, rapid periodontal breakdown. Common causative factors are aging and traumatic occlusion but the exact aetiology is unknown. ,,Trauma may be considered as a potential aetiologic factor for cemental tears in addition to occlusal traumatism and aging. [source]