Endodontic infection: some biologic and treatment factors associated with outcome

Chugal, Nadia; Clive, Jonathan; Spångberg, Larz S.W.

doi:10.1016/s1079-2104(02)91703-8

Cited by 203 publications

(171 citation statements)

References 17 publications

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“…A high rate of failure when treating molars has been reported previously on materials treated by different providers; however, the high rate of failure in the group of mandibular molars may be associated with the complex anatomy, making the mesial root difficult to debride [5,[14][15][16][17]. Furthermore, in this study, 42.7% of the teeth were from male subjects, but there was no difference in the final outcome between the male and female groups.…”

Section: Resultscontrasting

confidence: 48%

“…The presence of apical periodontitis is a serious complication, impeding the chances for successful endodontic treatment [13,17,21]. The periapical area is characterized with a rich blood supply, lymphatic drainage and undifferentiated cells; therefore, this apical region of teeth is rich in various stem cells, such as periodontal ligament stem cells, dental pulp stem cells, bone marrow mesenchymal stem cells and the more recently identified stem cells from the apical papilla [21,22].…”

Section: Resultsmentioning

confidence: 99%

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Retrospective study of the healing processes of endodontically treated teeth characterized by osteolytic defects of the periapical area: four-year follow-up

Gusiyska

Gateva

Kabaktchieva

et al. 2016

Biotechnology & Biotechnological Equipment

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One of the main objectives of primary endodontic treatment is the prevention of periapical tissue changes which, in the majority of clinical cases in general practice, does not take place because of the availability of a wide range of precise endodontic instruments. The healing process of the periapical area in teeth with inflammatory bone destruction is still a challenge in contemporary endodontic practice. The aim of this retrospective study was to assess the postoperative healing process of teeth with osteolytic defects in the periapical area. Eightynine endodontically treated teeth (n D 89) were included in the study. The teeth with necrotic pulp and without detectable periapical lesions were successfully treated in 92.9% of the cases. All of the incisors, canines and premolars showed significantly higher probabilities of success (97.8%) than molars (90.9%; P D 0.036). In all monitored teeth, the maxillary first molars with periapical index (PAI) 1 (80.2%), mandibular premolars with PAI3 (75%) and mandibular molars with PAI5 (75%) had the lowest rates of treatment success. In this study, the success rate of teeth with pulp necrosis complicated with a periapical lesion was 89.75% (P > 0.05). The analysis of the results from this study confirmed that the exact orthograde retreatment of the cases with osteolytic defects of the periapical area led to satisfactory healing and regeneration in the periapical area.

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Section: Resultscontrasting

confidence: 48%

Section: Resultsmentioning

confidence: 99%

Retrospective study of the healing processes of endodontically treated teeth characterized by osteolytic defects of the periapical area: four-year follow-up

Gusiyska

Gateva

Kabaktchieva

et al. 2016

Biotechnology & Biotechnological Equipment

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“…Studies also showed that 1 mm loss in working length is enough to increase the inci-dence of treatment failures in teeth with apical periodontitis (12,35). It has been concluded that a periapical tissue response will not develop unless microbial irritants can have a pathway to the periapical tissues.…”

Section: Discussionmentioning

confidence: 99%

Periapical Healing of Endodontically Treated Teeth Filled Only in the Apical Third: A Randomized Controlled Trial

Tajonar¹,

Sánchez-Mendieta²,

Martínez-Martínez

et al. 2017

Eur Endod J

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Objective: To provide evidence from a clinical viewpoint that the bacteria persisting within the root canal system do not have a significant impact on the treatment outcome as long as an adequate apical sealing is performed. Methods: A total of 42 patients with pulp necrosis and a periapical index (PAI) score of 5. Root canal treatment was performed in which the root canal filling was limited to the apical third of the root. In the control group, the root canal filling was performed up to the canal orifice. Data were analyzed using the Mann-Whitney test and the χ2 or the Fisher exact test (when appropriate).Results: All cases presented clinical success, absence of pain, swelling, sinus tract, tenderness to palpation or percussion and presented normal tooth mobility. Fifteen months were enough for all cases of both groups to be classified with a PAI score of ≤2. There was no statistical difference between the cases that ended the study with a PAI-1 or PAI-2 score. Conclusion:Within the limitations of this study, no significant differences in healing rates after complete obturation or only apical third obturation were observed. An adequate apical sealing can improve periapi-cal healing, thus intracanal remnant bacteria apparently have no significant impact, at least for the first 15 months of follow-up.

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“…8,21 Successful obturation requires the use of materials and techniques capable of densely filling the entire root canal system and providing a fluid-tight seal from the apical segment of the canal to the cavosurface margin in order to prevent reinfection. 22 Smear layer is one of the major factor that may affect the apical microleakage and thus compromise the long-term success of the treatment.…”

Section: Discussionmentioning

confidence: 99%

Effect of Smear Layer on the Apical Seal of Endodontically Treated Teeth: An ex vivo Study

Nischith

Srikumar²,

Razvi³

et al. 2012

The Journal of Contemporary Dental Practice

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Aim:The purpose of this study was to evaluate the effect of smear layer on apical seal of endodontically treated teeth. Materials and methods:Sixty freshly extracted human maxillary central incisor teeth were selected and were randomly divided into two experimental groups. Group A of 25 teeth and group B of 25 teeth and a control group of 10 teeth. Cleaning and shaping of the root canals were performed using endodontic K-files up to no. 50 size file in step-back technique. During the process, in root canals of group A, 17% EDTA (ethylenediaminetetraacetic acid) followed by 3% NaOCl (sodium hypochlorite) was used as root canal irrigant.In group B, MTAD (mixture tetracycline citric acid and detergent) was used as a root canal irrigant.In control group, saline was used as root canal irrigant. The root surfaces were then coated with nail polish of both experimental groups and control group. The samples were then immersed in India ink dye for 1 week at 37°C. Results:The statistical analysis of the results showed that the apical leakage was significantly more in teeth, where smear layer was not removed. Conclusion:The removal of smear layer improves the longterm apical seal and success of endodontically treated teeth.Clinical significance: The development and maintenance of apical seal is desirable and considered to be a major prerequisite to improve the outcome of root canal treatment.

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Endodontic infection: some biologic and treatment factors associated with outcome

Cited by 203 publications

References 17 publications

Retrospective study of the healing processes of endodontically treated teeth characterized by osteolytic defects of the periapical area: four-year follow-up

Retrospective study of the healing processes of endodontically treated teeth characterized by osteolytic defects of the periapical area: four-year follow-up

Periapical Healing of Endodontically Treated Teeth Filled Only in the Apical Third: A Randomized Controlled Trial

Effect of Smear Layer on the Apical Seal of Endodontically Treated Teeth: An ex vivo Study

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