Bamise C T, Oginni Adeleke O, Adedigba Michael A, Olagundoye O O
Senior Lecturer, Department of Restorative Dentistry, Obafemi Awolowo University, Osun State, Nigeria, e-mail:
J Contemp Dent Pract. 2012 May 1;13(3):289-93.
The objective of this study is to evaluate the awareness of patients with dental fillings about the toxicity of mercury in dental amalgam.
Adult patients having at least one amalgam filling in their mouth were recruited in the Oral Diagnosis Department of OAUTHC, Ile-Ife Dental Hospital. Participants were recruited consecutively as they report in the clinic. Data were collected using a structured questionnaire developed based on standard questions from relevant publications. They were asked to indicate the type of filling material in their mouth, ingredients of the material, previous knowledge of mercury in dental amalgam and ailments due to mercury. They were to indicate their level of agreement with filling their cavities with dental amalgam despite prior information about its mercury content.
There were about 446 respondents analyzed; male, 194 (43.5%); female 252 (56.5%). Six (1.4%) and 21 (4.7%) respondents were primary and secondary schools students respectively; 15(3.4%) had no formal education while about 410 (91.9%) were either undergraduate or graduate. All of them had at least one amalgam filling. 249 (55%) participants know the type of filling on their teeth; 156 (34.5%) had the knowledge of the presence of mercury in dental amalgam while 26.1% believed mercury can cause problems in human beings. About 90 (19.9%) participants claimed to have heard about adverse reactions to dental amalgams and 34 (7.5%) of them have heard about people recovering from an illness after removal of their filling. The level of agreement with filling their cavities with amalgam despite prior knowledge of its mercury content was 74% while 60% was observed for allowing just any material to be placed on their teeth.
Awareness of toxicity of mercury in dental amalgam was slightly low among the respondents studied. This may be suggested to be a reflection of nonexistent of global amalgam controversy in Nigeria.
本研究的目的是评估有补牙经历的患者对牙科汞合金中汞毒性的认知情况。
在伊费牙医院OAUTHC口腔诊断科招募口腔内至少有一颗汞合金填充物的成年患者。参与者在诊所就诊时依次被招募。数据通过基于相关出版物标准问题编制的结构化问卷收集。询问他们口腔内填充材料的类型、材料成分、之前对牙科汞合金中汞的了解以及汞导致的疾病。尽管事先被告知汞合金的汞含量，但仍要求他们表明是否同意用其填充龋洞。
共分析了约446名受访者；男性194名（43.5%）；女性252名（56.5%）。分别有6名（1.4%）和21名（4.7%）受访者为中小学生；15名（3.4%）未接受过正规教育，约410名（91.9%）为本科生或研究生。他们都至少有一颗汞合金填充物。249名（55%）参与者知道自己牙齿上填充材料的类型；156名（34.5%）了解牙科汞合金中存在汞，而26.1%的人认为汞会对人体造成问题。约90名（19.9%）参与者声称听说过牙科汞合金的不良反应，其中34名（7.5%）听说过有人在去除填充物后疾病康复。尽管事先知道汞合金的汞含量，但仍同意用其填充龋洞的比例为74%，而对于允许在牙齿上使用任何材料的同意比例为60%。
在所研究的受访者中，对牙科汞合金中汞毒性的认知略低。这可能反映出尼日利亚不存在全球范围内关于汞合金的争议。
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