Management of Apical Periodontitis: Healing of Post-treatment Periapical Lesions Present 1 Year after Endodontic Treatment. 2015

Ming-Ming Zhang, and Yu-Hong Liang, and Xue-Jun Gao, and Lan Jiang, and Luc van der Sluis, and Min-Kai Wu
Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China.

BACKGROUND Post-treatment periapical lesions present 1 year after treatment may heal during the second year or later. The aim of this study was to assess second-year volumetric changes in post-treatment periapical radiolucencies detected 1 year after treatment. METHODS Post-treatment periapical radiolucencies were detected on cone-beam computed tomographic (CBCT) scans obtained from 93 single-rooted teeth 1 year after endodontic treatment. The outcome of these teeth was evaluated 2 years after treatment. Two examiners independently measured the volume of the radiolucencies on CBCT images twice. A Wilcoxon signed rank test was used to assess the 1- and 2-year post-treatment volumes. RESULTS The intraclass correlation coefficients for the CBCT volumetric measurements were 0.971 and 0.998 for the 2 examiners, and the interexaminer correlation coefficient was 0.998. Of the 93 teeth with post-treatment radiolucencies at 1 year, 61were examined at the second-year evaluation. The overall size of the radiolucencies significantly decreased during the second year (P = .01); the volume decreased in 38 teeth (63%), remained unchanged in 20 (33%), and increased in 2 (3%). CONCLUSIONS The volume of post-treatment periapical radiolucencies detected 1 year after treatment was significantly reduced after the second year in 63% of teeth.

UI MeSH Term Description Entries
D010485 Periapical Periodontitis Inflammation of the PERIAPICAL TISSUE. It includes general, unspecified, or acute nonsuppurative inflammation. Chronic nonsuppurative inflammation is PERIAPICAL GRANULOMA. Suppurative inflammation is PERIAPICAL ABSCESS. Periodontitis, Acute Nonsuppurative,Periodontitis, Apical,Acute Nonsuppurative Periodontitides,Acute Nonsuppurative Periodontitis,Apical Periodontitides,Apical Periodontitis,Nonsuppurative Periodontitides, Acute,Nonsuppurative Periodontitis, Acute,Periapical Periodontitides,Periodontitides, Acute Nonsuppurative,Periodontitides, Apical,Periodontitides, Periapical,Periodontitis, Periapical
D010486 Periapical Tissue Tissue surrounding the apex of a tooth, including the apical portion of the periodontal membrane and alveolar bone. Periodontium, Apical,Apical Periodontium,Apical Periodontiums,Periapical Tissues,Periodontiums, Apical,Tissue, Periapical,Tissues, Periapical
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012390 Root Canal Therapy A treatment modality in endodontics concerned with the therapy of diseases of the dental pulp. For preparatory procedures, ROOT CANAL PREPARATION is available. Therapy, Root Canal,Canal Therapies, Root,Canal Therapy, Root,Root Canal Therapies,Therapies, Root Canal
D014945 Wound Healing Restoration of integrity to traumatized tissue. Healing, Wound,Healings, Wound,Wound Healings
D016896 Treatment Outcome Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series. Rehabilitation Outcome,Treatment Effectiveness,Clinical Effectiveness,Clinical Efficacy,Patient-Relevant Outcome,Treatment Efficacy,Effectiveness, Clinical,Effectiveness, Treatment,Efficacy, Clinical,Efficacy, Treatment,Outcome, Patient-Relevant,Outcome, Rehabilitation,Outcome, Treatment,Outcomes, Patient-Relevant,Patient Relevant Outcome,Patient-Relevant Outcomes
D054893 Cone-Beam Computed Tomography Computed tomography modalities which use a cone or pyramid-shaped beam of radiation. CAT Scan, Cone-Beam,Cone-Beam CT,Tomography, Cone-Beam Computed,Tomography, Volume Computed,CT Scan, Cone-Beam,Cone-Beam Computer-Assisted Tomography,Cone-Beam Computerized Tomography,Volume CT,Volume Computed Tomography,Volumetric CT,Volumetric Computed Tomography,CAT Scan, Cone Beam,CAT Scans, Cone-Beam,CT Scan, Cone Beam,CT Scans, Cone-Beam,CT, Cone-Beam,CT, Volume,CT, Volumetric,Computed Tomography, Cone-Beam,Computed Tomography, Volume,Computed Tomography, Volumetric,Computer-Assisted Tomography, Cone-Beam,Computerized Tomography, Cone-Beam,Cone Beam CT,Cone Beam Computed Tomography,Cone Beam Computer Assisted Tomography,Cone Beam Computerized Tomography,Cone-Beam CAT Scan,Cone-Beam CAT Scans,Cone-Beam CT Scan,Cone-Beam CT Scans,Scan, Cone-Beam CAT,Scan, Cone-Beam CT,Scans, Cone-Beam CAT,Scans, Cone-Beam CT,Tomography, Cone Beam Computed,Tomography, Cone-Beam Computer-Assisted,Tomography, Cone-Beam Computerized,Tomography, Volumetric Computed
D021621 Imaging, Three-Dimensional The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object. Computer-Assisted Three-Dimensional Imaging,Imaging, Three-Dimensional, Computer Assisted,3-D Image,3-D Imaging,Computer-Generated 3D Imaging,Three-Dimensional Image,Three-Dimensional Imaging, Computer Generated,3 D Image,3 D Imaging,3-D Images,3-D Imagings,3D Imaging, Computer-Generated,3D Imagings, Computer-Generated,Computer Assisted Three Dimensional Imaging,Computer Generated 3D Imaging,Computer-Assisted Three-Dimensional Imagings,Computer-Generated 3D Imagings,Image, 3-D,Image, Three-Dimensional,Images, 3-D,Images, Three-Dimensional,Imaging, 3-D,Imaging, Computer-Assisted Three-Dimensional,Imaging, Computer-Generated 3D,Imaging, Three Dimensional,Imagings, 3-D,Imagings, Computer-Assisted Three-Dimensional,Imagings, Computer-Generated 3D,Imagings, Three-Dimensional,Three Dimensional Image,Three Dimensional Imaging, Computer Generated,Three-Dimensional Images,Three-Dimensional Imaging,Three-Dimensional Imaging, Computer-Assisted,Three-Dimensional Imagings,Three-Dimensional Imagings, Computer-Assisted

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