Olley Ryan C, Moazzez Rebecca, Bartlett David
King's College London, Dental Institute, Department of Conservative Dentistry, Guy's Hospital, Room 301, Floor 26, Guys Tower Wing, London Bridge, SE1 9RT, UK.
Oral Clinical Research Unit, King's College London, Dental Institute, Guy's Dental Hospital, Room 365, Floor 25, Tower Wing, London Bridge, London SE1 9RT, UK.
J Dent. 2015 Feb;43(2):248-52. doi: 10.1016/j.jdent.2014.11.002. Epub 2014 Nov 15.
The aim of this study was to investigate the relationship between tooth wear and dentine hypersensitivity on occlusal/incisal tooth surfaces and the time since dietary acid consumption.
350 subjects were recruited from hospital and general practice in SE England aged 19-34 years old. The severity of tooth wear and dentine hypersensitivity was calculated on occlusal/incisal tooth surfaces per subject using Basic Erosive Wear Examination (BEWE) and Cumulative Hypersensitivity Index (CHI) scores respectively at each appointment. The CHI score relied on evaporative stimuli applied to each occlusal/incisal tooth surface. The subjects were also asked about the time since their last acidic food or drink consumption.
Tooth wear was recorded in 93% (n=327) of subjects and dentine hypersensitivity was recorded in 56% (n=196) of subjects. A positive statistically significant relationship existed between the severity of tooth wear and severity of dentine hypersensitivity recorded using BEWE and CHI on occlusal/incisal tooth surfaces (p<0.01). Dentine hypersensitivity and tooth wear were correlated with consumption of acidic beverages (p<0.01). The severity of dentine hypersensitivity on occlusal/incisal tooth surfaces was associated with the time since the subject's last acidic food consumption (p<0.01). Among those subjects who consumed an acidic beverage within 60min of their appointment, 87.2% (n=130) had dentine hypersensitivity. Among subjects who had consumed the acidic beverage more than 1h previously, the prevalence of dentine hypersensitivity was 12.8% (n=19).
The severity of tooth wear on occlusal/incisal tooth surfaces is associated with the dentine hypersensitivity severity. Subjects who consume dietary acidic beverages more recently are more likely to have dentine hypersensitivity.
Occlusal tooth surfaces suffer erosive, attritive and abrasive tooth wear. Tooth wear is important in the aetiology of dentine hypersensitivity on these surfaces. Dentine hypersensitivity is more likely initiated if subjects consume acidic beverages more recently. This supports clinically the episodic nature of dentine hypersensitivity caused predominately by active erosive tooth wear.
本研究旨在调查咬合面/切牙面牙齿磨损与牙本质过敏之间的关系，以及自摄入膳食酸以来的时间。
从英格兰东南部的医院和全科诊所招募了350名年龄在19 - 34岁之间的受试者。在每次就诊时，分别使用基本侵蚀性磨损检查（BEWE）和累积过敏指数（CHI）评分计算每位受试者咬合面/切牙面的牙齿磨损和牙本质过敏的严重程度。CHI评分依赖于施加到每个咬合面/切牙面的蒸发刺激。受试者还被问及自上次食用酸性食物或饮料以来的时间。
93%（n = 327）的受试者有牙齿磨损记录，56%（n = 196）的受试者有牙本质过敏记录。使用BEWE和CHI记录的咬合面/切牙面牙齿磨损严重程度与牙本质过敏严重程度之间存在统计学上的显著正相关（p < 0.01）。牙本质过敏和牙齿磨损与酸性饮料的摄入相关（p < 0.01）。咬合面/切牙面牙本质过敏的严重程度与受试者上次食用酸性食物以来的时间相关（p < 0.01）。在就诊前60分钟内饮用酸性饮料的受试者中，87.2%（n = 130）有牙本质过敏。在饮用酸性饮料超过1小时前的受试者中，牙本质过敏的患病率为12.8%（n = 19）。
咬合面/切牙面的牙齿磨损严重程度与牙本质过敏严重程度相关。近期食用膳食酸性饮料的受试者更有可能有牙本质过敏。
咬合面牙齿表面会遭受侵蚀性、磨耗性和磨损性牙齿磨损。牙齿磨损在这些表面牙本质过敏的病因中很重要。如果受试者近期饮用酸性饮料，牙本质过敏更有可能发生。这在临床上支持了主要由活动性侵蚀性牙齿磨损引起的牙本质过敏的发作性本质。
