Younes S A, El Angbawi M F
Community Dent Oral Epidemiol. 1983 Aug;11(4):246-9. doi: 10.1111/j.1600-0528.1983.tb01886.x.
Incidence of gingival recession in the mandibular central incisor region was examined in a sample of 1336 male and female Saudi schoolchildren aged from 10-15 yr. Gingival recession was found in 9.88% with no significant difference in the affected teeth by age (p greater than 0.8361). There was a significant difference in the mean clinical crown length between the affected and adjacent teeth (p less than 0.0001). The highest significant association of gingival recession was found with inflammation (p less than 0.0001), anterior crowding (p less than 0.0009) and frenal involvement (p less than 0.0001). The results of this investigation suggest that future studies should be made to evaluate the effect of miswak as a cleansing agent for the gingival tissues among the Saudi population.
在1336名年龄在10至15岁的沙特学龄儿童（男女皆有）样本中，对下颌中切牙区域牙龈退缩的发生率进行了检查。发现9.88%的人有牙龈退缩，患牙受年龄影响无显著差异（p大于0.8361）。患牙与相邻牙齿之间的平均临床冠长存在显著差异（p小于0.0001）。发现牙龈退缩与炎症（p小于0.0001）、前牙拥挤（p小于0.0009）和系带累及（p小于0.0001）的关联最为显著。这项调查结果表明，未来应开展研究，以评估阿拉伯牙刷作为沙特人群牙龈组织清洁剂的效果。
