School of Dentistry, University of El Salvador, Buenos Aires, Argentina.
Int Dent J. 2011 Oct;61(5):257-60. doi: 10.1111/j.1875-595X.2011.00069.x.
To determine the frequency and distribution of 975 teeth in need of endodontic treatment in an Argentine patient pool and to compare the results with previously published surveys.
Of the 975 teeth from 860 individuals (age range 7-86 years) were endodontically treated during 2007 by postgraduate students enrolled in a specialisation programme in Endodontics. All patients were examined clinically and radiographically. For each case, information was collected in a questionnaire including location of the affected tooth, age and gender and reasons for endodontic treatment. Data were analysed by the Student t-test, the Fisher exact test, and the chi-square test with a significance of P < 0.05.
Of the 975 treated teeth, 543 (55.69%) were maxillary and 432 (44.30%) mandibular teeth. 635 (65.13%) were from females and 340 (34.87%) from males. Significant differences were found between the maxillary and mandibular arch (P = 0.01). Molars and premolars required significantly more frequent endodontic treatment than canines and incisors (P < 0.001). The most frequently treated tooth was the mandibular right first molar (9.12%) followed by the mandibular left first molar (7.07%). The most frequently diagnosed pathosis was irreversible pulpitis (36.00%), pulp necrosis (30.80%), apical periodontitis or the presence of easily discernible periapical radiolucent areas (27.20%). Caries (59.18%) and failure of previous endodontic treatment (26.97%) were responsible for most of the affected teeth.
Comparison with previous surveys revealed that more females than males received endodontic treatment and that mostly molars and premolars were in need of endodontic treatment. The high number of root filled teeth requiring retreatment is in agreement with a pattern similar to that observed in other countries and supports the need for more specialists in endodontics in the Republic of Argentina.
确定在阿根廷患者群体中需要进行根管治疗的 975 颗牙齿的频率和分布，并与之前发表的调查结果进行比较。
2007 年，有 860 名（年龄 7-86 岁）患者的 975 颗牙齿由参加牙髓病学专科培训课程的研究生进行根管治疗。所有患者均进行临床和影像学检查。对于每例病例，通过问卷调查收集有关患牙位置、年龄和性别以及根管治疗原因的信息。数据采用学生 t 检验、Fisher 确切检验和卡方检验进行分析，P＜0.05 为差异有统计学意义。
在 975 颗接受治疗的牙齿中，543 颗（55.69%）为上颌牙，432 颗（44.30%）为下颌牙。女性 635 例（65.13%），男性 340 例（34.87%）。上颌牙和下颌牙之间存在显著差异（P=0.01）。磨牙和前磨牙比尖牙和切牙需要更频繁的根管治疗（P＜0.001）。接受治疗最多的牙齿是下颌右侧第一磨牙（9.12%），其次是下颌左侧第一磨牙（7.07%）。最常见的诊断疾病是不可复性牙髓炎（36.00%）、牙髓坏死（30.80%）、根尖周炎或可明显看出根尖周透明区（27.20%）。龋齿（59.18%）和先前根管治疗失败（26.97%）是导致大多数患牙的主要原因。
与之前的调查结果相比，接受根管治疗的女性多于男性，大多数需要根管治疗的是磨牙和前磨牙。需要重新治疗的根充牙数量较多，这与其他国家观察到的模式相似，支持阿根廷共和国需要更多的牙髓病学专家。
