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01.01.2015 | Original Article

Two- and tridimensional analysis of periapical repair after endodontic surgery

verfasst von: Mário Tanomaru-FIlho, Érica G. Jorge, Juliane M. Guerreiro-Tanomaru, José Mauricio S. Reis, Rubens Spin-Neto, Marcelo Gonçalves

Erschienen in: Clinical Oral Investigations | Ausgabe 1/2015

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Abstract

Objective

The aim of this study was to evaluate repair after endodontic surgery using two- and tridimensional imaging methods.

Materials and methods

Periapical radiographs and cone beam computed tomography (CBCT) were performed before the surgeries and after 48 h (baseline), 4 months, and 8 months. The area (square millimeters) of periapical lesions in CBCT and in radiographs was compared regarding the percentage of repair. In the CBCT, multiple areas were converted to volume. Repeated-measures analyses and paired t tests (α = 0.05) were used to compare the methods. Correlation coefficients were calculated between the periods of evaluation within the CBCT volumetric analysis. Bland-Altman plots were used to compare the methods, based on the 95 % limits of agreement for the difference of the means.

Results

Baseline showed a larger lesion volume (192.54 mm³) than 4-month (79.79 mm³) and 8-month (47.51 mm³) periods. No differences were found in the percentage of repair in the first 4 months and after 8 months. The volumetric analysis showed a higher percentage of repair when the first and last 4 months were compared. No differences were found in the percentage of repair by area in the CBCTs. Repair of 73 % was obtained after 8 months. Similar results were observed by the Bland-Altman agreement analyses.

Conclusions

The percentage of repair varied after 8 months, when lower values were obtained by volumetric evaluation.

Clinical relevance

Considering the outcome at follow-up periods over 4 months, tridimensional evaluation by CBCT is more capable of determining the absence of periapical bone repair than conventional two-dimensional radiographs. Therefore, the use of CBCT would be suggested only for more complex cases with slower evolution of repair or for the association of factors that make prognosis difficult after surgery.

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Titel: Two- and tridimensional analysis of periapical repair after endodontic surgery
verfasst von: Mário Tanomaru-FIlho
Érica G. Jorge
Juliane M. Guerreiro-Tanomaru
José Mauricio S. Reis
Rubens Spin-Neto
Marcelo Gonçalves
Publikationsdatum: 01.01.2015
Verlag: Springer Berlin Heidelberg
Erschienen in: Clinical Oral Investigations / Ausgabe 1/2015
Print ISSN: 1432-6981
Elektronische ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-014-1225-2

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Two- and tridimensional analysis of periapical repair after endodontic surgery

Abstract

Objective

Materials and methods

Results

Conclusions

Clinical relevance

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Springer Medizin

Abstract

Objective

Materials and methods

Results

Conclusions

Clinical relevance

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