Long-term results of root coverage with connective tissue in the envelope technique: a report of 20 cases.

Connective tissue grafts (CTGs) are generally viewed as the most successful technique for root coverage. The aim of this retrospective study was to assess the long-term clinical and patient-centered esthetic results of the envelope technique for CTG. Thirty-nine defects in 20 patients (22 to 57 years of age; mean 37.

Aggregatibacter actinomycetemcomitans as indicator for aggressive periodontitis by two analysing strategies.

Objective: To compare the subgingival microbiota of aggressive and chronic periodontitis (ChP) using single-site and pooled plaque samples.

Methods: In 60 patients with aggressive or ChP, subgingival plaque was sampled from the four deepest pockets using two sterile paper points simultaneously. One paper point from each pocket was put in a separate transport vial, the second was pooled with the three other paper points of a respective patient.