AVALIAÇÃO CLÍNICA E RADIOGRÁFICA DA PREVALÊNCIA DE RESTAURAÇÕES PROXIMAIS COM EXCESSO CERVICAL E CONDIÇÕES PERIODONTAIS ADJACENTES CLINICAL AND RADIOGRAPHIC EVALUATION OF INTERPROXIMAL OVERHANGING DENTAL RESTORATIONS AND PERIODONTAL STATUS

Overhanging dental restorations (ODRs) are important risk factors for periodontal attachment loss. The aim of this study was to clinically and radiographycally access the prevalence of ODRs in 355 individuals, as well as to establish the agreement between these exams. All the interproximal surfaces of the posterior teeth were examined and classified as not restored (NR), restored without overhangs (RS) and restored with overhangs (RC). The periodontal condition was evaluated using the CPITN scores. Bite wing x-rays were taken, processed and examined to verify the presence of proximal overhanging restorations, as well as the distance from the cementum-enamel junction to the interproximal bone crest (CEJ-BC). The results demonstrated that 44,4% and 38,8% of the surfaces with proximal restorations exhibited cervical overhangs on the clinical and radiographic exams, respectively. A higher prevalence of sites with probing depth > 3mm (55,2%) and with CEJ-BC > 2mm (77,6%) was found in surfaces RC, in comparison to the RS surfaces (23% and 31,8%, respectively). The agreement between the clinical and radiographic examination was considered good, according to the Kappa test (k=0,734). Thus, the presence of proximal ODRs represents an important risk factor for the presence of periodontal pocket and radiographic attachment loss.