Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

The mucosal barrier at im… - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

The mucosal barrier at implant abutments of different materials.

Artikel i vetenskaplig tidskrift
Författare Maria Welander
Ingemar Abrahamsson
Tord Berglundh
Publicerad i Clinical oral implants research
Volym 19
Nummer/häfte 7
Sidor 635-41
ISSN 1600-0501
Publiceringsår 2008
Publicerad vid Institutionen för odontologi
Sidor 635-41
Språk en
Länkar dx.doi.org/10.1111/j.1600-0501.2008...
Ämnesord Animals, Ceramics, Connective Tissue, anatomy & histology, Dental Abutments, Dental Implantation, Endosseous, Dental Implants, Dental Materials, Dental Prosthesis Design, Dogs, Epithelium, anatomy & histology, Gingiva, anatomy & histology, Gold Alloys, Implants, Experimental, Mouth Mucosa, anatomy & histology, Random Allocation, Titanium, Wound Healing, physiology, Zirconium
Ämneskategorier Biomaterial, Parodontologi

Sammanfattning

OBJECTIVE: The aim of the present study was to analyze the soft tissue barrier formed to implant abutments made of different materials. MATERIAL AND METHODS: Six Labrador dogs, about 1 year old, were used. All mandibular premolars and the first, second and third maxillary premolars were extracted. Three months later four implants (OsseoSpeed, 4.5 x 9 mm, Astra Tech Dental, M?lndal, Sweden) were placed in the edentulous premolar region on one side of the mandible and healing abutments were connected. One month later, the healing abutments were disconnected and four new abutments were placed in a randomized order. Two of the abutments were made of titanium (Ti), while the remaining abutments were made of ZrO(2) or AuPt-alloy. A 5-months plaque control program was initiated. Three months after implant surgery, the implant installation procedure and the subsequent abutment shift were repeated in the contra-lateral mandibular region. Two months later, the dogs were euthanized and biopsies containing the implant and the surrounding soft and hard peri-implant tissues were collected and prepared for histological analysis. RESULTS: It was demonstrated that the soft tissue dimensions at Ti- and ZrO(2) abutments remained stable between 2 and 5 months of healing. At Au/Pt-alloy abutment sites, however, an apical shift of the barrier epithelium and the marginal bone occurred between 2 and 5 months of healing. In addition, the 80-mum-wide connective tissue zone lateral to the Au/Pt-alloy abutments contained lower amounts of collagen and fibroblasts and larger fractions of leukocytes than the corresponding connective tissue zone of abutments made of Ti and ZrO(2). CONCLUSION: It is suggested that the soft tissue healing to abutments made of titanium and ZrO(2) is different to that at abutments made of AuPt-alloy.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?