싸이토 플렉스 테프가드는 마이크로포로스 타입의 PTFE 비흡수성 차폐막으로 초기봉합이 어려운 케이스, 특히 발치와보존술에 사용할 수 있는 것이 최대의 장접입니다.
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Alveolar bone preservation in extraction sockets using non-resorbable dPTFE membranes: a retrospective non-randomized study.
- 1Department of Periodontics, Loma Linda University, Loma Linda, CA 92354, USA. o_c_g_hoffmann@yahoo.com
Abstract
BACKGROUND:
The aim of this study was to investigate the clinical regeneration of extraction sockets using high-density polytetrafluoroethylene (dPTFE) membranes without the use of a graft material.
METHODS:
A total of 276 extraction sockets were evaluated in 276 subjects (151 males and 125 females; mean age, 50.2 years; age range: 24 to 73 years). After extraction, flaps were elevated and a dPTFE membrane was placed over the extraction site. The flaps were repositioned and sutured into place. Primary closure was not obtained over the membranes. The cemento-enamel junctions of the adjacent teeth were used as reference points. Measurements were taken postextraction and 12 months after surgery in the same areas with the help of a stent and were defined as the distance from the reference points to the bone level. Hard tissue biopsies were taken from 10 representative cases during implant placement 12 months after socket preservation. The bone core samples were submitted for histologic evaluation. A stringent plaque-control regimen was enforced in all subjects during the 12-month observation period.
RESULTS:
A significant regeneration of the volume of sockets could be noted by histologic evaluation, indicating that the newly formed tissue in extraction sites was mainly bone. No influence of gender, smoking, age, or clinical bone level before treatment was found on the percentage of bone gain.
CONCLUSION:
The use of dPTFE membranes predictably led to the preservation of soft and hard tissue in extraction sites.
Extraction site reconstruction for alveolar ridge preservation. Part 2: membrane-assisted surgical technique.
- 1Department of Surgery, Texas Tech University Health Sciences Center, School of Medicine, Lubbock, Tex, USA.
Abstract
Alveolar ridge resorption has long been considered an unavoidable consequence of tooth extraction. Guided bone regeneration techniques and the use of bone replacement materials have both been shown to enhance socket healing and to potentially modify the resorption process. This article will describe a surgical technique using textured, high-density polytetrafluoroethylene (PTFE) membrane and particulate bone replacement materials for graft containment and prevention of soft tissue ingrowth into healing extraction sites. The technique described does not require primary closure, facilitating the preservation of keratinized mucosa and gingival architecture.
Extraction environment enhancement: critical evaluation of early socket healing in long-term barrier-protected extraction sockets.
- 1College of Dentistry, New York University, New York, New York, USA.
Abstract
Resorption and remodeling of the alveolar bone occurs after periodontal disease, trauma, or tooth extraction. Loss of the functional apparatus can have a deleterious effect on the ability to place endosseous root-form implants into prosthetically ideal locations. As a result, there has been a trend toward socket preservation at the time of extraction. However, there has been limited investigation with histologic verification of results on types of materials used to preserve or augment extraction sockets. Minimizing bone loss after extractions enables an implant to be placed in an ideal orientation surrounded by bone, thereby increasing the longevity of the implant and associated prosthesis. The case reports presented detail clinical and histological results during the 3 to 6 months after a bone maintenance procedure that used a nonexpanded polytetrafluoroethylene barrier placed over an extraction socket with no graft material at the time of tooth extraction.
