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Results for “ROOT CANAL THERAPY”

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At least 55 records · Page 3Linked to original sources
PubMed1996

Evaluation of coronal microleakage after endodontic treatment.

A new method is suggested for placing a coronal seal in the orifice of the root canal right after root canal therapy. Root canal therapy was done on 94 extracted human maxillary centrals. Three mm of the coronal gutta-percha was replaced by either Cavit, TERM, or amalgam with cavity varnish. After thermocycling and 2 wk of immersion in dye, the amount of dye penetration was measured. The results showed that amalgam with two coats of cavity varnish sealed significantly better than Cavit and TERM. However, Cavit and TERM were still significantly better than a positive control group.

Calcium Sulfate↗
PubMed2002

Postoperative pain after 1- and 2-visit root canal therapy.

OBJECTIVES: The factors that influence postoperative pain after root canal treatment are not completely understood. The purpose of this prospective clinical study was to evaluate postoperative pain after root canal therapy performed in 1 appointment versus 2 appointments. STUDY DESIGN: Seventy-two patients requiring root canal therapy on permanent molars were included in this study. Patients were randomly assigned to either the 1-appointment or the 2-appointment group. Both vital and nonvital teeth were included. The standardized protocol for all teeth involved local anesthesia, isolation and access, engine-driven rotary nickel-titanium canal instrumentation to a minimum size #5 (.028 mm).04 taper Profile with step-back flaring, and irrigation with 2.5% NaOCl. Teeth in group 1 (n = 39) were obturated at the first appointment by using laterally condensed gutta-percha and Roth 811 sealer. Teeth in group 2 (n = 33) were closed with a sterile dry cotton pellet and Cavit restoration and were obturated at a second appointment 7 to 14 days later. A modified Visual Analogue Scale was used to measure preoperative pain and pain at 6, 12, 24, and 48 hours after the first appointment. Statistical analysis was performed to compare groups at each interval by using an independent-samples t test with Bonferroni adjustment. RESULTS: There was no statistically significant difference between groups at preoperative intervals or at any of the 4 postoperative intervals (P <.01). CONCLUSIONS: There was no difference in postoperative pain between patients treated in 1 appointment and patients treated in 2 appointments. The majority of patients in both groups reported no pain or only minimal pain within 24 to 48 hours of treatment.

Appointments and Schedules↗
PubMed1991

A comparison of anxiety levels associated with root canal therapy and oral surgery treatment.

Questionnaires regarding experience, hearsay, and perceptions of anxiety toward eight dental treatments were distributed to a general patient population. Data revealed that among 349 respondents 35% heard that root canal therapy was the most unpleasant dental treatment, whereas 29% listed oral surgery treatment as having the worst reputation. However, 53% of those experiencing oral surgery treatment stated that an oral surgery treatment was the most unpleasant treatment whereas only 17% experiencing root canal therapy stated the same for root canal therapy. On the basis of anxiety scores, root canal therapy and oral surgery treatment were categorized in the high-anxiety category, crowns, dentures, and fillings in the moderate-anxiety category, and cleaning, sick call, and examination in the low-anxiety category. The anxiety levels of root canal therapy and oral surgery treatment were then analyzed as they related to different experience groups (combinations of root canal therapy and oral surgery and experience), hearsay experience, and most unpleasant experience with root canal therapy and oral surgery. Patients having experience with root canal therapy or oral surgery treatment had lower anxiety levels toward these respective treatments than did those who had no such experience. Patients who have heard negative stories (hearsay) of root canal therapy and oral surgery showed higher levels of anxiety toward these respective treatments than did those who have not heard such stories. But former endodontic patients who had heard negative stories about root canal therapy actually recorded lower anxiety levels toward root canal therapy than those patients with no negative hearsay experience.(ABSTRACT TRUNCATED AT 250 WORDS)

Dental Anxiety↗
PubMed2006

[Root canal therapy of resinified teeth with surgical operating microscope and ultrasonic instruments].

PURPOSE: To evaluate the role of surgical operating microscope and ultrasonic instruments in endodontic treatment of patients who underwent previous resinifying therapy. METHODS: 63 premolars and molars that had been treated with resinifying therapy before were selected for root canal therapy. The coronal portion of resinified root canals were negotiated with ultrasonic instruments under surgical operating microscope, and the apical portion was managed with small size hand files and 15% EDTA. The root canals of all cases were shaped by Nickel-Titanium rotary instruments Hero 642, and obturated with lateral condensation technique. The negotiation of root canal system, instrument fracture, alterations of canal morphology, and operation time were recorded. The efficiency of preparation and obturation was analyzed by radiographs before and after treatment. RESULTS: The root canals of 54 teeth were negotiated, enlarged and obturated, with a success rate of 85.7%. No complications were found, such as vertical fracture, ledge, perforation and instrument separation. Good result of treatment was achieved in the 54 cases. CONCLUSIONS: The use of surgical operating microscope and ultrasonic instruments is proved to be effective in negotiation of coronal portion of the resinified root canals. Nevertheless, the use of ultrasonic instruments in apical or curved portion of root canals is not encouraged.

Aged↗