Creative Podcaster

Obturation

Fate of the Tissue in Lateral Canals and Apical Ramifications in Response to Pathologic Conditions and Treatment Procedures

•Lateral and apical ramifications are formed after a localized fragmentation of epithelial root sheath develops, and a small gap is left in place. Also when blood vessels running from the dental sac through the dental papilla persistently. •Can be seen throughout the root but most commonly seen in the apical third in posterior teeth •73.1% …

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Effect of Resin-based and Bioceramic Root Canal Sealers on Postoperative Pain

Summary:  •Purpose: to compare the effect of resin-based and bioceramic root canal sealers on the occurrence and intensity of postoperative pain in patients with asymptomatic apical periodontitis (AAP). •N= 114 teeth. •Materials/Methods: •Patients requiring root canal retreatment of at least 2 single-rooted teeth diagnosed with AAP with periapical lesions were included (2 to 4 according …

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Long-term Clinical Outcome of Teeth Obturated with Resilon

Summary:  Purpose:  To compare the long-term clinical outcomes of teeth obturated with Resilon/Real-Seal (RS) and teeth obturated with GP/AH Plus. n=  100 teeth, RS:50; GP:50 Materials/Methods: Teeth with initial RCT from 2007-2012 with no PARL were included Recall for RS was 5.8 years and GP was 6.6 years. Success was achieve by the lack of …

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Apically Extruded Sealers: Fate and Influence on Treatment Outcome

Summary:  •Purpose: to evaluate cases of unintentional overfillings after using different sealers and to see the fate of the extruded material and its influence on endodontic treatment outcome.  N= 105 Materials/Methods: •Teeth treated by a single operator and exhibiting overfillings in the postobturation radiograph (n = 105), with follow-up examinations ranging from 1 year to …

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Leakage Along Apical Root Fillings in Curved Root Canals. Part I: Effects of Apical Transportation on Seal of Root Fillings

Summary:  Purpose: To evaluate transportation and its effect of leakage N= 47 curved, single roots mandibular premolars, and 27 single, and straight mandibular premolars Materials/Methods: •Access, WL measured 1 mm from apex, RG was taken with #15 file •Canals were divided into 5 groups: –G1: hand filing/straight (step-back) 17 teeth, G2: hand filing/curved (step-back) –G3: …

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Radiographic evaluation of periapical healing of permanent teeth with periapical lesions after extrusion of AH Plus sealer.  

•Purpose: To clinically and radiographically examine the effects of extrusion of AH Plus sealer on the healing of permanent teeth with apical periodontitis. •Materials/Methods: -N=87 root canals radiographically detected with apical periodontitis. (age range: 9-15 years). -RCT: WL=RG apex-1mm, #35-#40 instrumentation, (2.5%) NaOCl, obturation with GP and AH plus sealer (lateral condensation) -Posttreatment RGs indicated: …

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Radiographic evaluation of extruded obturation materials

Summary:  Purpose: to evaluated the sealer/gutta percha extruded overtime radiographically , N=92 extruded obturation materials Materials/Methods: •Cases were instrumented with K hand files. Irrigated with 5.25% NaOCl. 15% filled with lateral compaction, 85%with vertical compaction, procosol sealer used in (23%), and Roth Elite 801 (77%) of the cases. •Preoperative radiograph was evaluated for presence or …

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Direct Effect of Endodontic Sealers on Trigeminal Neuronal Activity

Summary:  Purpose: to evaluate the effect of commonly used endodontic sealers on peripheral nociceptors Materials/Methods: •Rat trigeminal sensory neurons were exposed in vitro to vehicle, zinc oxide-eugenol (ZOE)–based sealer, AH Plus, EndoSequence BC sealer, or RealSeal SE. •Neuronal activation was measured by quantification of neuropeptide (CGRP) release. •In addition, cultured neurons were also subjected to the set form …

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Apical limit of root canal instrumentation and obturation, part 2. A histological study

Summary:  Purpose: to describe histologically and clinically the effect of different obturation levels on prognosis. N= 41 human teeth . Materials/Methods: •10 teeth were instrumented, Ca(OH)2 placed  and observed over 7-48 days . •In the rest of the teeth (around half were necrotic, others were vital). Complete endodontic treatment was done using 1% NaoCl irrigation. …

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Biologic aspects of endodontics: V—periapical tissue reactions to root canal instrumentation beyond the apex and root canal fillings short of and beyond the apex

Purpose:  to evaluate the effect of over-instrumentation followed by underextended and overextended root canal filling on the periapical tissues on a histological level Methodology: N = 19 maxillary anterior human teeth, 15 roots of posterior monkey teeth •All teeth responded normally to vitalometry test. Pulp extirpation done, pulp tissue prepared for histological examination •Teeth were …

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