Lynch E, Beighton D
Department of Conservative Dentistry, The London Hospital Medical College, Dental School, United Kingdom.
Gerodontology. 1993 Dec;10(2):98-104. doi: 10.1111/j.1741-2358.1993.tb00089.x.
A total of 447 primary root-caries lesions from 169 dental patients was studied to determine the relationships between mutans streptococci and the perceived treatment need of primary root-caries lesions. Samples of this altered dentine for microbiological culture were obtained. Lesions were classified into 5 treatment categories: soft and restore, leathery and restore, leathery and debride of caries, leathery and treat chemotherapeutically, and hard, to receive no treatment. The total numbers of mutans streptococci decreased significantly with decreased treatment need. The percentage of mutans streptococci from lesions requiring no treatment was significantly less than from lesions requiring treatment. The frequency of isolation of mutans streptococci was significantly greater from lesions requiring more treatment. Significantly more lesions containing > 10(2) mutans streptococci were distributed in the groups with a greater perceived treatment need or with larger dimensions occluso-gingivally and/or mesio-distally or bucco-lingually or with a closer proximity to the gingival margin.
对169名牙科患者的447处原发性根龋病变进行了研究，以确定变形链球菌与原发性根龋病变的感知治疗需求之间的关系。获取了这种病变牙本质样本用于微生物培养。病变被分为5种治疗类别：软质并修复、坚韧并修复、坚韧并去除龋坏组织、坚韧并进行化学治疗以及硬质，无需治疗。随着治疗需求的降低，变形链球菌的总数显著减少。无需治疗的病变中变形链球菌的百分比显著低于需要治疗的病变。需要更多治疗的病变中变形链球菌的分离频率显著更高。在感知治疗需求更大或咬合龈向和/或近远中向和/或颊舌向尺寸更大或更靠近牙龈边缘的组中，含有>10(2) 变形链球菌的病变明显更多。
