title: Peri-implant health around screw-shaped c.p. titanium machined implants in partially edentulous patients with or without ongoing periodontitis.
abstract: The relationship between periodontitis and peri-implantitis remains a matter of debate. The present study compared, "within" randomly chosen partially edentulous patients (n=84 subjects, 97 jaws), the marginal bone loss around teeth and implants during 5 years (range 3 to 11 years) following the first year of bone remodelling. The patients had all been rehabilitated by means of screw-shape c.p. titanium implants with a machined surface (Brånemark system). During the 5 years observation interval, periodontal parameters (marginal bone and attachment loss, the latter for teeth only) were collected together with data on confounding factors (smoking, oral hygiene, tooth loss). Marginal bone loss was measured through long-cone intra-oral radiographs. The mean "interval" bone loss was significantly (P=0.0001) higher around teeth (0.48+/-0.95 mm) than around implants (0.09+/-0.28 mm). The corresponding data for the "worst" performing tooth (0.99+/-1.25 mm) and implant (0.19+/-0.32 mm) per subject showed the same tendency. Neither attachment nor bone loss around teeth correlated with marginal bone loss around implants. This study indicated that the rate of bone loss around screw-shape c.p. titanium implants with a machined surface (Brånemark system implants) was not influenced by the progression rate of periodontal destruction around the remaining teeth within the same jaw.
authors.affiliation: Department of Periodontology, School of Dentistry, Oral Pathology & Maxillo-Facial Surgery, Catholic University of Leuven, Kapucijnenvoer 33, B-3000 Leuven, Belgium. Marc.Quirynen@med.kuleuven.ac.be
authors.forename: M
authors.initials: M
authors.lastname: Quirynen
authors.forename: W
authors.initials: W
authors.lastname: Peeters
authors.forename: I
authors.initials: I
authors.lastname: Naert
authors.forename: W
authors.initials: W
authors.lastname: Coucke
authors.forename: D
authors.initials: D
authors.lastname: van Steenberghe
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016301:Alveolar Bone Loss / Q000209:etiology*; D003758:Dental Implantation, Endosseous / Q000009:adverse effects; D015921:Dental Implants / Q000009:adverse effects*; D003775:Dental Polishing; D017267:Dental Prosthesis Design; D005260:Female; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000150:complications / Q000534:rehabilitation*; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D017622:Periodontal Attachment Loss / Q000150:complications; D010518:Periodontitis / Q000150:complications*; D013499:Surface Properties; D014025:Titanium
chemical_list: D015921:Dental Implants; D014025:Titanium