Department of Oral Health Sciences, BIOMAT Research Cluster, KU Leuven & University Hospitals Leuven, Leuven, Belgium; Private Practice, Proclin Rotterdam, Rotterdam, The Netherlands.
Department of Oral Health Sciences, BIOMAT Research Cluster, KU Leuven & University Hospitals Leuven, Leuven, Belgium.
J Endod. 2017 Oct;43(10):1602-1610. doi: 10.1016/j.joen.2017.05.026. Epub 2017 Aug 12.
The aim of this study was to perform a descriptive analysis of the occurrence of external cervical resorption (ECR) in relation to the patients' characteristics (sex, age, and tooth type) and the potentially involved predisposing factors.
This study includes data on 284 patients (337 teeth with evidence of ECR) referred to the University Hospital Leuven (Leuven, Belgium) and Endo Rotterdam (Rotterdam, the Netherlands) for diagnosis and treatment from 2010 to 2015. The medical history, existing radiographs, and dental records were available for evaluation. Each patient was then interviewed followed by a thorough clinical and radiographic examination. Intraoral pictures using a dental operating microscope and digital camera were taken during clinical examination. The radiographic examination consisted of digital periapical radiography and/or cone-beam computed tomographic imaging. A review of existing literature provided a potential predisposing factor checklist for ECR. The clinical data were correlated with the dental and medical history of each patient in an attempt to identify some potential predisposing factor(s) that could contribute to ECR. The frequency of the occurrence of ECR was correlated with tooth type, sex and age of the patient, and each 1 of the recorded potential predisposing factor(s).
From the examined teeth (337) with ECR, 175 (54%) were found in male patients and 162 (46%) were found in female patients. In 59% of the cases, more than 1 potential predisposing factor was identified. Most ECR cases were observed on maxillary central incisors (29%) followed by maxillary canines (14%), mandibular molars (14%), and maxillary premolars (11%). In addition, most ECR cases were observed on maxillary teeth (72%). The most frequently appearing factor was orthodontics (45.7%). Other frequently observed factors were trauma (28.5%), parafunctional habits (23.2%), poor oral health (22.9%), malocclusion (17.5%), and extraction of a neighboring tooth (14%).
The data indicate that ECR is not related to patient sex. ECR occurs most often in the maxillary central incisor. In the majority of the cases, more than 1 potential predisposing factor was identified, indicating that ECR may be mainly multifactorial. The most frequently appearing factors were orthodontics, iatrogenic or accidental trauma, and poor oral health. This information may be helpful in diagnosing ECR at an early stage when screening patients presenting with these predisposing factors.
本研究旨在对与患者特征（性别、年龄和牙齿类型）和潜在相关易感因素有关的外部牙颈部吸收（ECR）发生情况进行描述性分析。
本研究纳入了 2010 年至 2015 年期间因诊断和治疗而前往鲁汶大学医院（比利时鲁汶）和 Endo Rotterdam（荷兰鹿特丹）的 284 名患者（337 颗有 ECR 证据的牙齿）的数据。可评估其病史、现有 X 光片和牙科记录。随后对每位患者进行访谈，并进行彻底的临床和放射学检查。临床检查过程中使用牙科手术显微镜和数码相机拍摄口腔内照片。放射学检查包括数字根尖 X 光片和/或锥形束 CT 成像。对现有文献的回顾提供了 ECR 潜在易感因素检查表。将临床数据与每位患者的牙科和病史相关联，试图确定一些可能导致 ECR 的潜在易感因素。ECR 发生的频率与患者的牙齿类型、性别和年龄以及记录的每个潜在易感因素相关。
在所检查的 337 颗有 ECR 的牙齿中，175 颗（54%）见于男性患者，162 颗（46%）见于女性患者。59%的病例中发现了 1 个以上的潜在易感因素。大多数 ECR 病例发生在上颌中切牙（29%），其次是上颌尖牙（14%）、下颌磨牙（14%）和上颌前磨牙（11%）。此外，大多数 ECR 病例发生在上颌牙齿（72%）。最常见的因素是正畸治疗（45.7%）。其他经常观察到的因素包括创伤（28.5%）、功能紊乱习惯（23.2%）、口腔健康不良（22.9%）、错颌（17.5%）和邻牙拔除（14%）。
数据表明，ECR 与患者性别无关。ECR 最常发生在上颌中切牙。在大多数情况下，确定了 1 个以上的潜在易感因素，表明 ECR 可能主要是多因素的。最常见的因素是正畸治疗、医源性或意外创伤和口腔健康不良。当筛查有这些易感因素的患者时，这些信息可能有助于早期诊断 ECR。
