Comparison of Cone-Beam Computed Tomography and Intraoral Radiography in Detection of Recurrent Caries under Composite Restorations

Abstract

Secondary caries is the most common cause of dental restoration failures. This study aimed to compare the diagnostic accuracy of conventional and digital intraoral radiography and cone beam computed tomography (CBCT) for detection of recurrent caries around composite restorations. mesio-occluso-distal (MOD) cavities were prepared using bur on 45 extracted sound human molar teeth. The teeth were divided into 3 groups. In the control group, cavities were restored with composite resin after etching and bonding (n=15). In Group 2, 500-μm thick wax was placed over the buccal, lingual and gingival walls and the cavities were restored with composite resin. Group 3 specimens were subjected to pH cycling and artificial caries were created on the buccal, lingual and gingival walls. The cavities were restored with composite. Conventional and digital photo-stimulable phosphor (PSP; Optime) radiographs and two CBCTs images (NewTom 3G and Cranex 3D) were obtained from them. Presence or absence of caries in the cavity walls was assessed on these images. Data were analyzed using Kappa statistic. The diagnostic accuracy of CBCT was significantly higher than that of digital and conventional intraoral radiography (p<0.05). The accuracy was 0.83, 0.78, 0.55 and 0.49 for CBCT Cranex 3D, CBCT NewTom 3G, conventional and digital intraoral radiography, respectively. CBCT has a higher diagnostic accuracy than digital and conventional intraoral radiography for detection of secondary caries around composite restorations.

Clinical time and postoperative sensitivity after use of bulk-fill (syringe and capsule) vs. incremental filling composites: a randomized clinical trial

“…5 Despite all of these advances, composite resins still confront the problem of the stress produced by the polymerization shrinkage, which can cause, among other problems, cusp deflection, 6 postoperative sensitivity, 7 marginal discoloration, 6 and recurrent caries. 8 As a result, the most popular restorative technique used by dentists seeking to reduce or avoid such problems is the conventional incremental technique. However, in spite of its status as the most popular restorative technique, there are still problems associated with the incremental technique.…”

Influence of Different Bioactive Tooth Colored Restorative Materials in Caries Detection Using Cone Beam Computed Tomography

“…The primary diagnosis of recurrent caries around composite restorations is especially vital in light of the fact that these restorations lack self-sealing and antibacterial properties. Resin restorations of the posterior teeth must be radiopaque because detection of marginal defects overhangs and secondary caries around these restorations exceptionally relies upon the radiopacity of these restorations [12].…”

“…The intensity of artifacts increases by an increase in the radiopacity of composite resins. In the present study, the cavity walls were effortlessly evaluated because of the nonappearance of artifacts [4,6,12,13,14].…”

Efficacy of denoising and enhancement filters for detection of approximal and occlusal caries on digital intraoral radiographs

“…[ 2 10 ] Despite the advantages of digital system, the efficacy of some software enhancement features is still questionable because in some cases, software manipulation of digital radiographs may result in false-positive caries detection and lead to incorrect diagnosis and treatment. [ 11 12 ] Thus, this study aimed to assess the efficacy of denoising and enhancement filters for approximal caries detection on digital radiographs.…”