The detection of periapical pathosis using periapical radiography and cone beam computed tomography - Part 1: pre-operative status

The determination of the success of endodontic treatment has been often discussed based on outcome obtained by periapical radiography. The aim of this study was to verify the influence of intracanal post on apical periodontitis detected by cone-beam computed tomography (CBCT). A consecutive sample of 1020 images (periapical radiographs and CBCT scans) taken from 619 patients (245 men; mean age, 50.1 years) between February 2008 and September 2009 were used in this study. Presence and intracanal post length (short, medium and long) were associated with apical periodontitis (AP). Chi-square test was used for statistical analyses. Significance level was set at p<0.01. The kappa value was used to assess examiner variability. From a total of 591 intracanal posts, AP was observed in 15.06%, 18.78% and 7.95% using periapical radiographs, into the different lengths, short, medium and long, respectively (p=0.466). Considering the same posts length it was verified AP in 24.20%, 26.40% and 11.84% observed by CBCT scans, respectively (p=0.154). From a total of 1,020 teeth used in this study, AP was detected in 397 (38.92%) by periapical radiography and in 614 (60.19%) by CBCT scans (p<0.001). The distribution of intracanal posts in different dental groups showed higher prevalence in maxillary anterior teeth (54.79%). Intracanal posts lengths did not influenced AP. AP was detected more frequently when CBCT method was used.

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Accuracy of Cone-Beam Computed Tomography and Periapical Radiography in Detecting Small Periapical Lesions

Journal of Endodontics ◽

10.1016/j.joen.2012.03.001 ◽

2012 ◽

Vol 38 (7) ◽

pp. 965-970 ◽

Cited By ~ 49

Author(s):

Patrick Tsai ◽

Mahmoud Torabinejad ◽

Dwight Rice ◽

Bruno Azevedo

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Periapical Lesions ◽

Periapical Radiography

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Unilateral Fusion of Maxillary Lateral Incisor: Diagnosis Using Cone Beam Computed Tomography

Case Reports in Dentistry ◽

10.1155/2014/934218 ◽

2014 ◽

Vol 2014 ◽

pp. 1-5

Author(s):

Iury Oliveira Castro ◽

Carlos Estrela ◽

Vinícius Rezende Souza ◽

Lawrence Gonzaga Lopes ◽

João Batista de Souza

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Tooth Development ◽

Lateral Incisor ◽

Cone Beam ◽

Supernumerary Tooth ◽

Maxillary Lateral Incisor ◽

Interdental Papilla ◽

The Right ◽

Periapical Radiography

Objective. The objective of this paper is to report a dental fusion case focusing on clinical and radiographic features for the diagnosis.Method. To report a case of right maxillary lateral incisor fusion and a supernumerary tooth, the anatomy of the root canal and dental united portion were assessed by cone beam computed tomography (CBCT).Results. The clinical examination showed dental juxtaposition with the absence of interdental papilla and esthetic impairment in the right maxillary lateral incisor region. The periapical radiography did not provide enough information for the differential diagnosis due to the inherent limitations of this technique. CBCT confirmed the presence of tooth fusion.Conclusion. CBCT examination supports the diagnosis and provides both the identification of changes in tooth development and the visualization of their extent and limits.

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