Journal of Periodontal and Implant Science

Korean Academy of Periodontology (대한치주과학회)
권호 표지

RELATIONSHIP BETWEEN PROBING POCKET DEPTH AND TRYPSIN-LIKE ACTIVITY IN SUBGINGIVAL PLAQUE

치주낭 탐침깊이와 치은연하치태내 Trypsin-like activity와의 관계

  • Park, Jea-Han (Dept. of Periodontology, College of Dentistry, Chosun University) ;
  • Han, Kyung-Yoon (Dept. of Periodontology, College of Dentistry, Chosun University)
  • 박재한 (조선대학교 치과대학 치주과학교실) ;
  • 한경윤 (조선대학교 치과대학 치주과학교실)
  • Published : 1993.11.30
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Abstract

In order to determine the relationship between probing pocket depth and trypsin-like activity in subgingival plaque, probing pocket depth and loss of attachment were measured by Michigan-O probe on mandibular incisors of 30 patients with adult periodontitis. And the trypsin-like activity of Treponema denticola, Porphyromonas gingivalis, and Bacteroides forsythus was evaluated by the hydrolysis of N-Benzoyl-DL-Arginine-2-Naphthyla-mide (BANA) using PerioScan reagent cards(Oral-B Laboratories, Redwood City, CA). The obtained data were statistically analyzed by Microstat program. The results were as follows. 1. The number of teeth showing negative trypsin-like activity was more in shallow periodontal pocket groups, but the number of teeth showing positive trypsin-like activity was more in deep periodontal pocket groups. 2. There was a significant positive correlation between probing pocket depth and trypsin-like activity in subgingival plaque(y=0.413X - 0.955, r = 0.7024, p<0.001). 3. There was no consistent relationship between loss of attachment and trypsin-like activity in subgingival plaque(p>0.01).

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