Long-term radiographic evaluation of GTR treatment in intrabony defect.
10.5051/jkape.2007.37.2.181
- Author:
Mi Hye CHOI
1
;
Jin Woo PARK
;
Jo Young SUH
;
Jae Mok LEE
Author Information
1. Department of Periodontology, School of Dentistry, Kyungpook National University, Korea. leejm@knu.ac.kr
- Publication Type:Original Article
- Keywords:
GTR;
Radiographic evaluation;
Periodontitis
- MeSH:
Allografts;
Follow-Up Studies;
Guided Tissue Regeneration;
Gyeongsangbuk-do;
Heterografts;
Humans;
Mandible;
Membranes;
Oral Hygiene;
Periodontal Diseases;
Periodontics;
Periodontitis;
Regeneration;
Transplants
- From:The Journal of the Korean Academy of Periodontology
2007;37(2):181-192
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Periodontal surgery as part of the treatment of periodontal disease is mainly performed 1) to gain access to diseased areas for adequate cleaning; 2) to achieve pocket reduction or elimination; and 3) to restore the periodontal tissues lost through the disease; i.e., a new attachment formation of periodontal regeneration. To accomplish the latter, often referred to as the ultimate goal of periodontal therapy, a number of surgical procedures have been advocated throughout the years. Clinical studies have demonstrated that considerable gain of clinical attachment and bone can be achieved following guided tissue regeneration (GTR) therapy of intrabony defects. The aim of this study was to analyse the radiographic bone changes 2-year after GTR using a bone graft material and nonresorbable membrane. Patients attending the department of periodontics of Kyungpook National University Hospital were studied. Patients had clinical and radiographic evidence of intrabony defect(s). 33 sites of 30 patients aged 32 to 56 (mean age 45.6) were treated by GTR with a bone graft material and nonresorbable membrane. Baseline and 2-year follow-up radiographs were collected and evaluated for this study. Radiographic assessment includes a bone fill, bone crest change, defect resolution, and % of defect resolution. Pre- and post-treatment differences between variables (maxilla and mandible, defect depth, defect angle, bone graft materials) using the paired t-test were examined. We observed 2.86+/-1.87mm of bone fill, 065+/-0.79mm of crestal resorption, 3.49+/-2.11mm of defect resolution, and 44.42+/-19.51% of percentage of defect resolution. Mandible, deeper initial defect depth, narrower initial defect angle showed greater bone fill, defect resolution, and % of defect resolution. But no difference was observed between xenograft and allograft. Outcome of GTR as a therapy of intrabony defect was better than other therapy, but herein, good oral hygiene maintenance as a anti-infective treatment and periodic recall check of patients are essential.
