Kumar Mandeep, Verma Rashmi, Bansal Mohit, Singh Sunint, Rehan Sharique, Kumar Virender, Simran Dr
Department of Prosthodontics, Rayat Bahra Dental College and Hospital, Mohali, Punjab, India.
Private Practice, Akalchet Multispeciality Dental Clinic, Sector-37 C, Chandigarh, India.
Open Dent J. 2018 Sep 28;12:735-741. doi: 10.2174/1745017901814010735. eCollection 2018.
To determine the severity and distribution of occlusal tooth wear among young North Indian adults and to evaluate the correlation of occlusal tooth wear with bite force.
A total of 164 subjects were enrolled in the present study. Inclusion criteria included subjects with age range of 25-40 years having a full complement of natural dentition (excluding third molars), with no history of orthodontic treatment, FPD and trauma. Maxillary and mandibular casts of each subject were taken. Tooth wear score of anterior and posterior teeth of both the arches was calculated using a five-point (0 to 4) ordinal scoring system. The calculated tooth wear scores were then compared with data concerning age, sex, number of daily meals, vegetarian/non-vegetarian diet, Group function/Canine guided occlusion and bite force. Nonparametric (Mann-Whitney) test was used to determine the relationship between various factors and occlusal tooth wear. Spearman's correlation coefficient was used to determine the correlation between tooth wear and bite force.
After applying statistical analysis to the data collected, total tooth wear score of the whole sample was 30.07 ± 6.39. Anterior teeth had significantly higher wear score than posteriors ( < 0.01). Males showed significantly higher ( < 0.001) tooth wear in both arches factors such as bite force and age showed significant correlation with tooth wear (=0.000), however, the number of meals taken per day did not show any significant correlation. Higher tooth wear loss was seen in non vegetarian dietary pattern but it was statistically insignificant. It was also found that Group function occlusion showed significantly higher mean tooth wear loss 45.76 ± 9.19 as compared to Canine guided occlusion 26.37 ± 10.68 (=0.000).
确定印度北部年轻成年人中咬合面牙齿磨损的严重程度和分布情况，并评估咬合面牙齿磨损与咬合力之间的相关性。
本研究共纳入164名受试者。纳入标准包括年龄在25至40岁之间、天然牙列完整（不包括第三磨牙）、无正畸治疗史、无固定义齿修复史及无外伤史的受试者。为每位受试者制取上下颌模型。使用五点（0至4）顺序评分系统计算双侧牙弓前后牙的牙齿磨损得分。然后将计算出的牙齿磨损得分与年龄、性别、每日进餐次数、素食/非素食饮食、组牙功能/尖牙引导咬合及咬合力等数据进行比较。采用非参数（曼-惠特尼）检验确定各因素与咬合面牙齿磨损之间的关系。使用斯皮尔曼相关系数确定牙齿磨损与咬合力之间的相关性。
对收集到的数据进行统计分析后，整个样本的总牙齿磨损得分为30.07±6.39。前牙的磨损得分显著高于后牙（<0.01）。男性双侧牙弓的牙齿磨损均显著更高（<0.001）。咬合力和年龄等因素与牙齿磨损呈显著相关性（=0.000），然而，每日进餐次数未显示出任何显著相关性。非素食饮食模式下的牙齿磨损损失更高，但在统计学上无显著意义。还发现，与尖牙引导咬合（26.37±10.68）相比，组牙功能咬合的平均牙齿磨损损失显著更高（45.76±9.19）（=0.000）。
