Department of Restorative Dentistry, University of Maiduguri Teaching Hospital, Maiduguri, Borno State, Nigeria.
Department of Restorative Dentistry, Faculty of Dentistry, Bayero University, Kano, Nigeria.
Niger Postgrad Med J. 2022 Apr-Jun;29(2):161-166. doi: 10.4103/npmj.npmj_7_22.
Associations between the occurrence of dentine hypersensitivity (DH) and dental fluorosis (DF) have been suggested. Testing this association requires studies among populations with both conditions. This study aimed to determine the association between DF and the experience of DH among a population endemic for DF.
This was a cross-sectional study conducted in 2021 over 6 months among 428 adult patients. Participants' demographics were collected, followed by verbal screening for DH and oral examinations. Clinical assessment for DH was carried out by tactile and evaporative methods. The presence and severity of DF were also assessed using the Thylstrup and Fejerskov Index. Data analysis included Chi-square and correlation statistics to assess the presence and strength of associations.
The overall prevalence of DH was 31.1%. A higher proportion (41.1%, P < 0.001) of participants with DF had DH than those without DF. The association between DH and DF was minimal but statistically significant (r = 0.174, P < 0.001). Among those with DF, the prevalence of DH was highest in participants with severe fluorosis (50%, P = 0.740). The proportion of sensitive teeth to the teeth examined was significantly higher (P < 0.0001) for participants with DF (289/4167, 6.9%) than participants without DF (267/6758, 4%). This proportion was also highest for severe DF (20/254, 7.9%, P = 0.572) than the mild and moderate forms.
DH was more prevalent among individuals with DF. The prevalence of DH was not dependent on the severity of DF.
有研究表明，牙本质敏感（DH）的发生与氟牙症（DF）之间存在关联。验证这种关联需要在同时具有这两种情况的人群中进行研究。本研究旨在确定在氟牙症流行地区的人群中，DF 与 DH 体验之间的关联。
这是一项横断面研究，于 2021 年在 6 个月内进行，共纳入 428 名成年患者。收集参与者的人口统计学资料，随后进行 DH 的口头筛查和口腔检查。DH 的临床评估采用触觉和蒸发方法进行。DF 的存在和严重程度也使用 Thylstrup 和 Fejerskov 指数进行评估。数据分析包括卡方检验和相关性统计，以评估关联的存在和强度。
DH 的总体患病率为 31.1%。患有 DF 的参与者中，DH 的比例更高（41.1%，P < 0.001）。DH 和 DF 之间存在微弱但具有统计学意义的关联（r = 0.174，P < 0.001）。在患有 DF 的参与者中，严重氟斑牙患者的 DH 患病率最高（50%，P = 0.740）。患有 DF 的参与者中，对所检查牙齿敏感的牙齿比例明显更高（P < 0.0001）（289/4167，6.9%），而无 DF 的参与者为（267/6758，4%）。严重 DF（20/254，7.9%，P = 0.572）的比例也高于轻度和中度氟斑牙。
DH 在患有 DF 的个体中更为普遍。DH 的患病率与 DF 的严重程度无关。
