The samples are gathered for 3 times from supragingival dental plaque on all teeth except mandibular anterior teeth.
共采集菌斑3次，取除下颌前牙以外的所有牙面的龈上菌斑。
2
The detection rates for Pg in molars were much higher than those in incisors, and the presence of Pg and Aa in supragingival plaque was related to periodontal parameters.