Comparative Study of Reciproc and Manual systems with Solvent in Root Canal Retreatment using Scan Electron Microscope

The solidification method is a significant and resultful method for the disposal of dredged sediment. Solidified agents can be employed to improve the unconfined compressive strength (UCS) of sediment solidification. In this work, considering of economy and practicability, three kinds of optimized compound additives are selected and investigated on the effects of UCS of sediment solidification. 7d., 14d.and 28d. solidification stadium were taken to test the UCS of samples. Results showed that the activator had the best effect on increasing the UCS. The comparative tests also indicated that adding any kind of additive into the cement-based materials could improve the UCS of sediment solidification, the highest value of UCS was 11.02MPa (SCAHR). By means of scan electron microscope (SEM) technology, the microstructure images of the raw sample and solidified sample were obtained, which help to understand the development of UCS of the solidified sediments.

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Comparative study of Vertucci and Ahmed classifications to evaluate the main root canal configuration of mandibular incisors in a Brazilian population

Australian Endodontic Journal ◽

10.1111/aej.12576 ◽

2021 ◽

Author(s):

Natália Villa ◽

Theodoro Weissheimer ◽

Fabiana Vieira Vier‐Pelisser ◽

Murilo Priori Alcalde ◽

Rodrigo Ricci Vivan ◽

...

Keyword(s):

Comparative Study ◽

Root Canal ◽

Brazilian Population ◽

Main Root ◽

Mandibular Incisors

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Radicular Perforation Repair with Mineral Trioxide Aggregate: A Case Report with 10-Year Follow-up

The Open Dentistry Journal ◽

10.2174/1874210601610010733 ◽

2016 ◽

Vol 10 (1) ◽

pp. 733-738 ◽

Cited By ~ 3

Author(s):

Leopoldo Cosme-Silva ◽

Breno Carnevalli ◽

Vivien Thiemy Sakai ◽

Naiana Viana Viola ◽

Leon Franco de Carvalho ◽

...

Keyword(s):

Case Report ◽

Root Canal ◽

Mineral Trioxide Aggregate ◽

Radiographic Examination ◽

Root Canal Filling ◽

Second Molar ◽

Iatrogenic Perforation ◽

Iatrogenic Complications ◽

Root Canal Retreatment

Background: Iatrogenic complications such as accidental perforation of the root or the floor of the pulp chamber may occur. Case Report: Patient was referred for root canal retreatment of the mandibular left second molar with periapical lesion evidenced through radiographic examination. During post removal, iatrogenic perforation occurred at the mesial face of the distal root. After clinical localization of the perforation and bleeding control, MTA was applied. In a second appointment, the root canal filling was removed and the chemical-surgical retreatment of the canals was performed, followed by the obturation with gutta-percha and sealer. Patient returned after three days reporting no pain. After 6 months, 3, 7 and 10 years of follow-up. Conclusion: Absence of pain, normal periodontal probing and lack of radiolucent area at the region of perforation and the periapices were detected, which evidenced the successful repair of the tooth.

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Extrusion of Root Canal Sealer in Periapical Tissues - Report of Two Cases with Different Treatment Management and Literature Review

Balkan Journal of Dental Medicine ◽

10.1515/bjdm-2017-0002 ◽

2017 ◽

Vol 21 (1) ◽

pp. 12-18 ◽

Cited By ~ 2

Author(s):

Athina Dalopoulou ◽

Nikolaos Economides ◽

Vasilis Evangelidis

Keyword(s):

Root Canal ◽

Clinical Symptoms ◽

Complete Healing ◽

Radiographic Examination ◽

Periapical Lesion ◽

Root Canal Sealer ◽

Treatment Management ◽

Retrograde Filling ◽

Root Canal Retreatment ◽

The Right

Summary Background: Extrusion of root canal sealers may cause damage to the surrounding anatomic structures. Clinical symptoms like pain, swelling and paresthesia or anesthesia may be present. The purpose of this presentation is to describe two cases of root canal sealer penetration into periapical tissues. A different treatment management was followed in each case. Case reports: A 55 year-old man underwent root canal retreatment of the right mandibular first molar tooth due to a periapical lesion. Postoperative periapical radiographs revealed the presence of root canal sealer (AH26) beyond the apex in the distal root in proximity to the mandibular canal. The patient reported pain for the next 7 days. Radiographic examination after 1 year showed complete healing of the periapical area and a small absorption of the root canal sealer. A 42 year-old woman was referred complained of swelling and pain in the area of the right maxillary first incisor. Radiographic examination showed extrusion of root canal sealer in the periapical area associated with a periapical lesion. Surgical intervention was decided upon, which included removal of the sealer, apicoectomy of the tooth and retrograde filling with MTA. After 1 year, complete healing of the area was observed. Conclusion: In conclusion, cases of root canal sealer extrusion, surgical treatment should be decided on only in association with clinical symptoms or with radiographic evidence of increasing periapical lesion.

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