Download - Samson 2009
J Clin Periodontol 2009;36:357-63Extent of peri-implantitis-associated bone lossFransson C et alGöteborg, Sweden
Material: 1070 implants from 182 subjects examined from 1 – 23 years follow-up
Definition: Peri-implantitis = bleeding on probing, pus & probing pocket depth ≥ 6mm
Results: About 40 % of implants in each subject were affected by peri- implantitis-associated bone loss
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Long-term (> 5 years) appearance ofsingle- tooth implant crowns • gingival blue-coloring • progressive infraocclusion • ”root” exposure
World J Orthod nr. 3, 2006
44
Godtfredsen 2008
Long-term follow-up (5 yrs) of implants
Score 1: No blue-coloring ........ 43%Scores 2-4: Blue-coloring or visible margin ........ 57 %
of treated cases at follow-up after 5 years
55
Why labial bone loss & discoloration of gingiva in front of implants
•Alveolar bone in front is built from endosteally formed bone (except from narrow strip at crest where periosteal bone is formed due to the continuous tooth eruption)
•Endosteal bone is more porous than periosteal bone (= more sensitive to resorption)
•The labial bone in front of implants does not hold (disturbed vascularization, changes of mechanical stimuli, etc.)
Rotational Palatal Pedicle GraftRotational Palatal Pedicle Graft
Stig K. Osterberg DDS MSD
Port Townsend WA
Stig K. Osterberg DDS MSD
Port Townsend WA
Eur J Orthod 2001;237:15-31Orthodontic aspects of the use of oral implants in adolescents: a 10-year follow-up studyThilander B, Ödman J, Lekholm UGöteborg, Sweden
J Clin Periodontol 2004;31:1024-8
Long-term vertical changes of the anterior maxillary teeth adjacent to single implants in young and mature adultsA retrospective studyBernard JP, Schatz JP, Christou P, Belser U, Kiliaridis SGeneva, Switzerland
C Infra-occlusion
99
Clin Impl Dent & Related Research 2005;7:200-208