Retrieval outcome of separated endodontic instruments by Saudi endodontic board residents: A Clinical retrospective study
Al‑Nazhan, Saad . 2018
Aim: This study aims to evaluate the retrieval outcome of the separated endodontic instrument by endodontic
board residents.
Materials and Methods: Records of 450 endodontic cases with separated endodontic instruments treated
by endodontic Saudi board residents were randomly selected. The evaluation was based on the tooth type,
type of fractured instrument, incidence and anatomical location in the root canal and if the instrument was
retrieved, bypassed, or left. Data were statistically analyzed using IBM‑SPSS.22.
Results: A total of 84 (19%) separated instruments were identified. Thirty‑four cases (7.55%) with separated
instruments out of the total evaluated cases were done by residents. The incidence between hand stainless
steel and nickel‑titanium instruments was statistically significant (P < 0.05). The separated instruments
were found more in the mandibular molars, i.e., 44 (52.4%). They were observed more in the buccal canal
of the maxillary premolars and mesiobuccal canals of mandibular and maxillary molars. Fifty‑seven (67.9%)
of the separated fragments were located in the apical third of the root. Thirty‑six (34.3%) were retrieved,
20 (19.0%) were bypassed, and 34 (32.4%) were left while 15 (14.3%) were managed by surgery. The ultrasonic
device was more active in removing the separated instruments.
Conclusions: Regardless of little experience of the endodontic residents, they were successfully managed
to remove or bypass most of the separated instruments. Ultrasonic device was very helpful in removing
the separated instrument.
Aim: This study aims to evaluate the retrieval outcome of the separated endodontic instrument by endodontic
board residents.
Materials and Methods: Records of 450 endodontic cases with…
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