| risk of aggressive periodontitis in adolescent carriers of the jp2 clone of aggregatibacter (actinobacillus) actinomycetemcomitans in morocco: a prospective longitudinal cohort study. | periodontitis is a loss of supporting connective tissue and alveolar bone around teeth, and if it occurs in an aggressive form it can lead to tooth loss before the age of 20 years. although the cause of periodontitis in general remains elusive, a particular clone (jp2) of the gram-negative rod aggregatibacter (actinobacillus) actinomycetemcomitans is considered a possible aetiological agent of the aggressive form in adolescents living in or originating from north and west africa, where the disea ... | 2008 | 18207019 |