Rustogi K N, Triratana T, Timpawat S, Nakornchai S, Volpe A R
Department of Oral Pathology, Mahidol University School of Dentistry, Bangkok.
J Clin Dent. 1991;3 Suppl B:B31-6.
A one-year, double-blind clinical study was conducted on a population of Thai children and teenagers to determine the effect of the twice daily use of an anticalculus dentifrice on supragingival calculus formation and gingival recession, as compared to the use of a placebo dentifrice and the continuation of customary oral hygiene procedures. The subjects were initially evaluated for calculus using the Volpe-Manhold procedure and for gingival recession using the GRT procedure of Volpe, Triratana, and Rustogi. All subjects received an oral prophylaxis and were assigned to the use of the following: (1) a placebo dentifrice containing 0.243% sodium fluoride in a silica base, (2) an anticalculus dentifrice containing 1.3% soluble pyrophosphate and 1.5% Gantrez copolymer in a 0.243% sodium fluoride/silica base, or (3) continuation of customary oral hygiene procedures. After six months, the subjects using the anticalculus dentifrice had 35.93% less supragingival calculus than the placebo dentifrice subjects, and 52.74% less supragingival calculus than the subjects who continued their regular/customary oral hygiene procedures. After one year, the subjects using the anticalculus dentifrice had 39.76% less supragingival calculus and 18.33% less gingival recession than the subjects using the placebo dentifrice. Also, after one year, the subjects using the anticalculus dentifrice had 57.86% less supragingival calculus and 16.55% less gingival recession than the subjects who continued their customary oral hygiene procedures. All reductions were statistically significant at the 99% level of confidence.
对一群泰国儿童和青少年进行了一项为期一年的双盲临床研究，以确定与使用安慰剂牙膏及继续采用常规口腔卫生程序相比，每日两次使用防牙石牙膏对龈上牙石形成和牙龈退缩的影响。最初使用Volpe-Manhold程序评估受试者的牙石情况，使用Volpe、Triratana和Rustogi的GRT程序评估牙龈退缩情况。所有受试者都接受了口腔预防治疗，并被分配使用以下物品：(1) 一种含0.243%氟化钠的二氧化硅基安慰剂牙膏，(2) 一种含1.3%可溶性焦磷酸盐和1.5% Gantrez共聚物的0.243%氟化钠/二氧化硅基防牙石牙膏，或(3) 继续采用常规口腔卫生程序。六个月后，使用防牙石牙膏的受试者龈上牙石比使用安慰剂牙膏的受试者少35.93%，比继续进行常规口腔卫生程序的受试者少52.74%。一年后，使用防牙石牙膏的受试者龈上牙石比使用安慰剂牙膏的受试者少39.76%，牙龈退缩少18.33%。此外，一年后，使用防牙石牙膏的受试者龈上牙石比继续进行常规口腔卫生程序的受试者少57.86%，牙龈退缩少16.55%。所有减少在99%的置信水平上均具有统计学意义。
