Guided tissue regeneration for the treatment of intraosseous defects using a biabsorbable membrane. A controlled clinical study.
The aim of this controlled, clinical study was to evaluate guided tissue regeneration using a bioabsorbable membrane in periodontal intraosseous defects. Forty patients, each contributing one defect > or =4 mm in depth participated. The control group (18 individuals) received conventional flap therapy, while the test group (22 individuals) was treated using the bioabsorbable membrane, Guidor. Clinical assessments were made by one examiner, blinded with respect to treatment group, at baseline, 6 and 12 months following surgery. Baseline probing pocket depths of 7.7+/-1.4 mm in the membrane group and 7.6+/-1.9 mm in the control group were measured. Twelve month results showed a significant clinical attachment level gain in both control (1.1+/-1.8 mm), and membrane group (1.3+/-2.1 mm). Probing pocket depth reduction of 2.6+/-1.9 mm and 2.7+/-1.9 mm was observed in the respective groups. Bone sounding showed a non-significant gain of 0.4+/-1.8 mm and 0.6+/-1.4 mm at membrane and control sites, respectively. Radiographic evaluation confirmed these results. There were no significant differences found between treatment groups for any of the tested variables. Smoking had a negative effect on healing in both groups. In conclusion, clinical and radiographic results indicate that guided tissue regeneration using a bioabsorbable membrane at intraosseous defects did not predictably achieve greater clinical attachment level gain nor bone gain when compared to conventional flap therapy.
Lund University, Faculty of Odontology, Malmö, Sweden.
L
L
Mayfield
G
G
Söderholm
H
H
Hallström
B
B
Kullendorff
S
S
Edwardsson
G
G
Bratthall
U
U
Brägger
R
R
Attström
D000042:Absorption; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000382:microbiology / Q000473:pathology / Q000601:surgery*; D000539:Alveolar Process / Q000000981:diagnostic imaging / Q000473:pathology; D001672:Biocompatible Materials; D002951:Citrates; D015169:Colony Count, Microbial; D005069:Evaluation Studies as Topic; D005500:Follow-Up Studies; D016557:Guided Tissue Regeneration, Periodontal / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D008567:Membranes, Artificial; D008875:Middle Aged; D017622:Periodontal Attachment Loss / Q000382:microbiology / Q000473:pathology / Q000601:surgery; D010514:Periodontal Pocket / Q000382:microbiology / Q000473:pathology / Q000601:surgery; D011091:Polyesters; D016966:Porphyromonas gingivalis / Q000254:growth & development; D018713:Prevotella intermedia / Q000254:growth & development; D011859:Radiography; D016037:Single-Blind Method; D012907:Smoking / Q000009:adverse effects; D013524:Surgical Flaps; D016896:Treatment Outcome; D014945:Wound Healing
D001672:Biocompatible Materials; D002951:Citrates; C105021:Guidor; D008567:Membranes, Artificial; D011091:Polyesters