title: Case report of multiple implant failure in a patient with ankylosing spondylitis.
abstract: This report details a case of multiple implant failure (so-called 'cluster phenomenon') in a patient with ankylosing spondylitis and considers some factors for implant failure including reduced bone density. It highlights the relationship between ankylosing spondylitis and osteoporosis although no direct link is made between these conditions and the implant failures in this case.
authors.affiliation: Aberdeen Royal Infirmary, Aberdeen. dean.barker@nhs.net
authors.forename: D
authors.initials: D
authors.lastname: Barker
authors.forename: F S A
authors.initials: FS
authors.lastname: Nohl
authors.forename: K R
authors.initials: KR
authors.lastname: Postlethwaite
authors.forename: D G
authors.initials: DG
authors.lastname: Smith
mesh_terms: D000540:Alveolar Ridge Augmentation; D015519:Bone Density / Q000502:physiology; D018786:Bone Substitutes / Q000627:therapeutic use; D016025:Bone Transplantation; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D019232:Dental Restoration Failure; D020878:Device Removal; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery; D008443:Maxillary Sinus / Q000601:surgery; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000150:complications*
chemical_list: D018786:Bone Substitutes; D015921:Dental Implants