Soares Luana Goés, Costa Igor Reali, Brum Júnior Jadimar Dos Santos, Cerqueira Wyllerson Silveira Bronzon, Oliveira Evandro Silveira de, Douglas de Oliveira Dhelfeson Willya, Gonçalves Patricia Furtado, Glória José Cristiano Ramos, Tavano Karine Tais Aguiar, Flecha Olga Dumont
a Department of Dentistry, Faculty of Biologic Sciences and Health , Federal University of Jequitinhonha and Mucuri Valleys , Diamantina , Brazil.
b Department of Periodontology , Faculty of Dentistry, Federal University of Minas Gerais , Belo Horizonte , Brazil.
Cranio. 2017 Sep;35(5):298-303. doi: 10.1080/08869634.2016.1218671. Epub 2016 Aug 12.
The aim of this study was to determine the prevalence of bruxism in students at the Federal University of the Jequitinhonha and Mucuri Valleys in Brazil. The secondary objectives were to identify the factors associated with bruxism; prevalence of dental wear; and to distinguish the signs and symptoms of temporomandibular dysfunction when present, and verify its relationship with bruxism.
Two hundred fifty-three students (106 males, 147 females) were clinically examined and answered a questionnaire. Trained researchers performed the dental wear evaluation. The incisal edge and occlusal surface were classified as follows: no wear, wear into enamel, wear into dentin, and extensive wear into dentin. Demographic data and factors related to bruxism were obtained by a questionnaire. The participants who presented dental wear and habit of clenching/grinding teeth were classified as bruxers. The data were analyzed by the SPSS program (p < 0.05).
The results showed that 31.6% of the students had bruxism. Of the 7084 teeth evaluated, 376 (5.3%) had some type of facet wear. The teeth that had the highest prevalence of wear facets were the canines. Stress, muscle pain, temporomandibular joint (TMJ) pain, and TMJ noise were significantly associated with bruxism (p < 0.001).
The prevalence of bruxism was 31.6% in this population. The factors most associated with bruxism were stress, muscle pain, TMJ pain, and TMJ noise.
本研究旨在确定巴西热基蒂尼奥尼亚和穆库里河谷联邦大学学生磨牙症的患病率。次要目标是识别与磨牙症相关的因素；牙齿磨损的患病率；区分存在时颞下颌关节功能障碍的体征和症状，并验证其与磨牙症的关系。
对253名学生（106名男性，147名女性）进行了临床检查并回答了一份问卷。训练有素的研究人员进行了牙齿磨损评估。切缘和咬合面分类如下：无磨损、磨损至牙釉质、磨损至牙本质、广泛磨损至牙本质。通过问卷获取人口统计学数据和与磨牙症相关的因素。出现牙齿磨损和紧咬牙/磨牙习惯的参与者被归类为磨牙症患者。数据通过SPSS程序进行分析（p<0.05）。
结果显示31.6%的学生患有磨牙症。在评估的7084颗牙齿中，376颗（5.3%）有某种类型的小平面磨损。磨损小平面患病率最高的牙齿是犬齿。压力、肌肉疼痛、颞下颌关节（TMJ）疼痛和TMJ弹响与磨牙症显著相关（p<0.001）。
该人群中磨牙症的患病率为31.6%。与磨牙症最相关的因素是压力、肌肉疼痛、TMJ疼痛和TMJ弹响。
