OBJECTIVE: Our aim was to compare the Accu-I-Tomo (3DX), the Digora Optime image plate system and F-speed film in detecting chemically created apical lesions. METHODS: Lesions were created by applying perchloric acid apical to extracted teeth in jaw specimens for 1, 1.5 or 2 h. After being repositioned, teeth were radiographed with Accu-I-Tomo limited cone beam CT (LCBCT), Digora Optime storage phosphor plates (SPP) and F-speed films. Six observers scored the presence of lesions using a five-grade scale. The accuracy of each observer and modality was assessed through receiver operating characteristic (ROC) analysis and A(z) values were compared using two-way ANOVA. Pairwise comparisons of imaging systems were carried out using the Mann-Whitney U-test. Differences in A(z) values were compared using Friedman and Dunn's tests. Kappa (kappa) was used to measure interobserver agreement. RESULTS: The A(z) values were larger for LCBCT than for SPP and film for all acid durations. For 1 h of acid duration a significant difference was found between LCBCT and film (P = 0.02) and between LCBCT and SPP (P = 0.0043), For 1.5 h a significant difference (P = 0.006) was found between LCBCT and SPP only. For 2 h acid duration, there was no significant difference between LCBCT and film or SPP (P>0.05). Between SPP and film no significant difference was found for any acid duration (P>0.05). kappa ranged between fair and moderate for LCBCT and between slight and fair for SPP and film. CONCLUSION: LCBCT images provided better than or similar detectability as film and SPP images of chemically created periapical lesions.
OBJECTIVE: Our aim was to compare the Accu-I-Tomo (3DX), the Digora Optime image plate system and F-speed film in detecting chemically created apical lesions. METHODS: Lesions were created by applying perchloric acid apical to extracted teeth in jaw specimens for 1, 1.5 or 2 h. After being repositioned, teeth were radiographed with Accu-I-Tomo limited cone beam CT (LCBCT), Digora Optime storage phosphor plates (SPP) and F-speed films. Six observers scored the presence of lesions using a five-grade scale. The accuracy of each observer and modality was assessed through receiver operating characteristic (ROC) analysis and A(z) values were compared using two-way ANOVA. Pairwise comparisons of imaging systems were carried out using the Mann-Whitney U-test. Differences in A(z) values were compared using Friedman and Dunn's tests. Kappa (kappa) was used to measure interobserver agreement. RESULTS: The A(z) values were larger for LCBCT than for SPP and film for all acid durations. For 1 h of acid duration a significant difference was found between LCBCT and film (P = 0.02) and between LCBCT and SPP (P = 0.0043), For 1.5 h a significant difference (P = 0.006) was found between LCBCT and SPP only. For 2 h acid duration, there was no significant difference between LCBCT and film or SPP (P>0.05). Between SPP and film no significant difference was found for any acid duration (P>0.05). kappa ranged between fair and moderate for LCBCT and between slight and fair for SPP and film. CONCLUSION: LCBCT images provided better than or similar detectability as film and SPP images of chemically created periapical lesions.
Authors: Daniel Berretta Moreira Alves; Fabrício Mesquita Tuji; Fábio Abreu Alves; André Caroli Rocha; Alan Roger Dos Santos-Silva; Pablo Agustin Vargas; Márcio Ajudarte Lopes Journal: Dentomaxillofac Radiol Date: 2018-06-05 Impact factor: 2.419
Authors: H Christell; S Birch; M Hedesiu; K Horner; D Ivanauskaité; O Nackaerts; M Rohlin; C Lindh Journal: Dentomaxillofac Radiol Date: 2012-04-12 Impact factor: 2.419
Authors: Amparo Ramis-Alario; Beatriz Tarazona-Alvarez; Juan Cervera-Ballester; David Soto-Peñaloza; Miguel Peñarrocha-Diago; David Peñarrocha-Oltra; María Peñarrocha-Diago Journal: J Clin Exp Dent Date: 2019-08-01
Authors: Thomas Gerhard Wolf; Fernando Castañeda-López; Lisa Gleißner; Ralf Schulze; Robert Kuchen; Benjamín Briseño-Marroquín Journal: Sci Rep Date: 2022-08-18 Impact factor: 4.996