Shigli Kamal, Hebbal Mamata, Angadi Gangadhar Shivappa
Department of Prosthodontics, Modern Dental College and Research Centre, Indore, Madhya Pradesh, India.
Gerodontology. 2009 Sep;26(3):214-8. doi: 10.1111/j.1741-2358.2008.00236.x. Epub 2008 Nov 14.
To examine the reasons for tooth loss in an adult population.
Patients who reported to the department of prosthodontics in Institute of Dental Sciences, Belgaum, located in the north-western part of the state of Karnataka, in the southern region of India over a period of 2 months, with at least one missing tooth (excluding third molars) constituted the sample size. There were a total of 365 patients (185 females and 180 males) within the age group of 16-84 years (mean age 51.06 +/- 16.47 years) who fulfilled this criterion. Socio-demographic profile was recorded along with a clinical examination for assessing the number and pattern of tooth loss. The reasons for tooth loss were recorded according to the history reported by the patient.
In the present study of 365 patients, 58.9% of the patients were completely edentulous, 41% were partially dentate, of which 20.8% had lost their teeth from caries, 11% from periodontal disease and 9.3% from a combination of reasons. More females had lost their teeth because of dental caries whereas more males had lost their teeth because of periodontal disease, this being statistically significant. (chi2 = 16.53, p = 0.001). Highly significant results were obtained for age and reasons for tooth loss. (chi2 = 150.39, p < 0.001). Irrespective of the socio-economic status, dental caries was the most common cause for tooth loss in partially dentate patients though it was not statistically significant (chi2 = 13.62, p = 0.325). Mandibular first molars were the teeth most frequently lost due to dental caries. The maxillary left central incisor was most frequently lost due to periodontal disease, followed by the maxillary right central incisor.
Since both dental caries and periodontal disease contributed to tooth loss at different ages, risk indicators need to be identified.
研究成年人群牙齿缺失的原因。
在印度南部卡纳塔克邦西北部贝尔高姆牙科学院口腔修复科就诊的患者，在两个月的时间里，至少有一颗牙齿缺失（不包括第三磨牙）的患者构成样本量。共有365名患者（185名女性和180名男性）符合该标准，年龄在16 - 84岁之间（平均年龄51.06±16.47岁）。记录社会人口学资料，并进行临床检查以评估牙齿缺失的数量和模式。根据患者报告的病史记录牙齿缺失的原因。
在本研究的365名患者中，58.9%的患者全口无牙，41%为部分牙列缺损，其中20.8%的患者因龋齿失牙，11%因牙周病失牙，9.3%为多种原因导致。因龋齿失牙的女性多于男性，因牙周病失牙的男性多于女性，差异有统计学意义（χ² = 16.53，p = 0.001）。年龄与牙齿缺失原因之间存在高度显著的结果（χ² = 150.39，p < 0.001）。无论社会经济地位如何，龋齿是部分牙列缺损患者牙齿缺失的最常见原因，尽管差异无统计学意义（χ² = 13.62，p = 0.325）。下颌第一磨牙是因龋齿最常缺失的牙齿。上颌左中切牙是因牙周病最常缺失的牙齿，其次是上颌右中切牙。
由于龋齿和牙周病在不同年龄段均导致牙齿缺失，因此需要确定风险指标。
