Chilton N W, Fertig J W, Talbott K
Pharmacol Ther Dent. 1978;3(1):39-44.
Sixty-six dental students, randomly assigned to one of three examiners, were scored initially for gingivitis using the Columbia gingival index (GI). After four weekly prophylaxes, gingival scores for all teeth were recorded at day 0. Following prophylaxes, all subjects were randomly assigned one of three mouthwash formulations. Gingival scores were taken on the full mouth after three weeks and again after six weeks. Pearson product moment correlation coefficients (r) were obtained for the gingivitis index from six selected teeth (partial score) with the full mouth score, usually based on 24 to 28 teeth. GI scores obtained from partial recording on the six selected teeth correlated very well with scores obtained from full mouth examinations. A special study was set up to obtain independent GI readings for the six target teeth and for the full mouth. GI scores obtained by independent examinations of the six selected teeth also correlated well with the full mouth scores, although not as well as when the partial scores were derived from the full mouth scores. Partial scores should only be compared with partial scores obtained from evaluating the same teeth and not with full mouth scores, in clinical trials or epidemiologic surveys.
66名牙科学生被随机分配给三名考官中的一位，最初使用哥伦比亚牙龈指数（GI）对牙龈炎进行评分。在进行四周的每周一次的预防措施后，在第0天记录所有牙齿的牙龈评分。预防措施之后，所有受试者被随机分配三种漱口水配方中的一种。在三周后和六周后再次对全口进行牙龈评分。通常基于24至28颗牙齿，从六颗选定牙齿（部分评分）的牙龈炎指数与全口评分获得皮尔逊积差相关系数（r）。从六颗选定牙齿的部分记录获得的GI评分与全口检查获得的评分相关性非常好。设立了一项专项研究以获取六颗目标牙齿和全口的独立GI读数。通过对六颗选定牙齿进行独立检查获得的GI评分与全口评分也具有良好的相关性，尽管不如部分评分源自全口评分时那么好。在临床试验或流行病学调查中，部分评分仅应与评估相同牙齿获得的部分评分进行比较，而不应与全口评分进行比较。
