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with extensive periodontal lesions, such DOI: 10.1111/j.1365-2591.2009.01561.x
as root perforations, pin-perforation, or 14. Rahbaran S, Gilthorpe MS, Harrison SD,
root resorption are high risk factors for Gulabivala K, Gulabivala K. Comparison of
clinical outcome of periapical surgery in end-
endodontic retreatment failure. odontic and oral surgery units of a teaching den-
tal hospital: a retrospective study. Oral Surgery,
The use of advanced technologies in end- Oral Medicine, Oral Pathology, Oral Radiolo-
odontic retreatment can result in a positive gy, and Endodontics. 2001;91(6).
outcome leading to the success rate of 15. Lovdahl PE. Endodontic retreatment. Dental
75% of the retreated cases. However, it Clinics of North America. 1992;36(2):473–490.
15
is necessary to understand that this success
largely depends on multiple factors in- Dr. Stanislav V. Zagorsky
cluding: the qualification of the treating worked as a dental tech-
Figure 4. Determining working length. clinician, as well as the availability of nician before qualifing
appropriate materials, tools and equipment. from the Moscow State
After two weeks, the patient was pain Medical and Dental
University with a degree
free, and the canals were sealed with References in dentistry. He then
gutta-percha via lateral condensation tech- 1. I.Makeeva , N. Zhokhova Errors and com- received his specialty
plications of endodontic treatment. Moscow:
niques (Figure 5). The coronal portion of MMA- 2007. 80 с. training in endodontics from Sechenov Uni-
the tooth was subsequently built-up with a 2. Salehrabi R, Rotstein I. Endodontic treat- versity and currently practices in Moscow.
light-cured composite material (Charisma ment outcomes in a large patient population Dr. Svetlana Tarasenko is
Classic-Kulzer). At the six-month recall, in the USA: an epidemiological study. Jour- a professor and Head of
a significant bone growth in the periapical nal of Endodontics, Dec. 2004; 30(12):846-85 the Department of Dental
DOI:10.1097/01.don.0000145031.04236.ca
zone was observed, and the patient re- 3. S. Cohen, Richard C. Burns Pathways of Surgery at Sechenov Uni-
mained asymptomatic (Figure 6). the pulp. 2005 DOI: 10.1111/j.1747-4477.1987. versity. She is the author
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including a chapter in
4. Friedman S. Considerations and concepts of the textbook Laser Peri-
case selection in the management of post-treat- odontal Surgery.
ment endodontic disease (treatment failure).
2002. DOI: 10.1034/j.1601-1546.2002.10105.x Dr. Arthur Volker
5. Bergenholtz G, Lekholm U, Milthon R, et graduated from the
al. Retreatment of endodontic fillings. Scand Columbia University
J Dent Res. 1979;87:217-224. DOI: 10.1111/ School of Dental and
j.1600-0722.1979.tb00675.x Oral Surgery. Dr. Volker
6. Sjogren U, Hagglund B, Sundqvist G, Wing
K. Factors affecting the long-term results of has published articles
endodontic treatment. J Endod. 1990;16:498- and lectures nationally
and internationally on
504. DOI: 10.1016/s0099-2399(07)80180-4
Figure 5. Periapcial radiograph 7. Farazneh M, Abitbol S, Friedman S. et al. such topics as cosmetic
immediately after obturation. Treatment outcome in endodontics: the Toronto dentistry, minimally invasive dentistry, and
study. Phases I and II: orthograde retreatment. J dental materials. He practices in Sunnyside,
New York.
Endod. 2004;30:627-633. DOI: 10.1097/01.
don.0000129958.12388.82
8. E. Borovsky. Therapeutic dentistry. Selected
sections .M .: “Dentistry”2005. - 224 с.
9. N. Abramova . Experience repeated end-
odontic treatment of teeth with a poor prognosis
for success Text / N. Abramova, E. Leonova //
Endodontics today. 2003. - № 1-2, Том 3. - С.
60-65.
10. Sundqvist. Microbiologic analysis of teeth
with failed endodontic treatment and the out-
come of conservative re-treatment. 1998. DOI:
10.1111/j.1747-4477.1998.tb00033.x
11. T. Aksenov, A. Bondarenko. Integrated re-
habilitation for patients with destructive forms
Figure 6. Periapical radiograph six of chronic apical periodontitis // Licensing
and accreditation in dentistry: Coll. scientif-
months post-op. ic. works-Moscow-Krasnodar: Kuban Soviet
2001.- С.49-51.
It should be noted that root fracture, grade 12. Hillsmann M. Epidemiologische Date Zur
three mobility, deep pathological pocketing Endodontic. Endodontia 2000; 1:51-62.
and visible fissures present in the root canal 13. Zitzmann NU, Krastl G, Hecker H, Walter
system are contraindications to endodontic C, Weiger R. Endodontics or implants? A re-
view of decisive criteria and guidelines for sin-
retreatment; in such situations, extraction is gle-tooth restorations and full-arch reconstruc-
recommended. Additionally, perforations tions. International Endodontic Journal. 2009.

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