title: Overdentures on primary mandibular implants in patients with oral cancer: a follow-up study over 14 years.
abstract: We aimed to assess oral functioning, patients' satisfaction, condition of peri-implant tissues, and survival of implants up to 14 years after their insertion in patients with oral cancer who had had mandibular overdentures placed over primary implants. Endosseous dental implants were inserted prospectively in the interforaminal region of the mandible during resection of the tumour in 164/180 patients with oral cancer. All 58 patients were evaluated by questionnaires and clinical assessments during a final assessment in 2012. Implant-retained mandibular overdentures were inserted, and prosthetic rehabilitation and oral functioning were not associated with primary site or stage of the tumour, number or type of implants inserted, or the type of reconstruction. Over time the peri-implant mucosa was usually free of inflammation. More implants were lost in patients treated by radiotherapy (27/318, 8.5%) than in those not so treated (1/206, 0.5%). Patients who had been treated by irradiation reported more problems in oral functioning and less satisfaction than those who had not. Patients with an implant-retained mandibular overdenture reported fewer problems in oral functioning than patients without an overdenture. Primary insertion of an implant should be routinely incorporated in the surgical planning for patients with oral cancer, as oral functioning in those wearing mandibular overdentures improved considerably and peri-implant health was at least reasonable.
authors.affiliation: Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University of Groningen and University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands. Electronic address: a.korfage@umcg.nl.
authors.forename: Anke
authors.initials: A
authors.lastname: Korfage
authors.affiliation: Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University of Groningen and University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
authors.forename: Gerry M
authors.initials: GM
authors.lastname: Raghoebar
authors.affiliation: Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University of Groningen and University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
authors.forename: James J R Huddleston
authors.initials: JJ
authors.lastname: Slater
authors.affiliation: Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University of Groningen and University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
authors.forename: Jan L N
authors.initials: JL
authors.lastname: Roodenburg
authors.affiliation: Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University of Groningen and University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
authors.forename: Max J H
authors.initials: MJ
authors.lastname: Witjes
authors.affiliation: Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University of Groningen and University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
authors.forename: Arjan
authors.initials: A
authors.lastname: Vissink
authors.affiliation: Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University of Groningen and University Medical Center Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
authors.forename: Harry
authors.initials: H
authors.lastname: Reintsema
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging; D015331:Cohort Studies; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003781:Denture Retention / Q000295:instrumentation; D003828:Denture, Overlay; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000528:radiation effects / Q000601:surgery*; D008409:Mastication / Q000502:physiology; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000532:radiotherapy / Q000601:surgery*; D016348:Osseointegration / Q000502:physiology / Q000528:radiation effects; D017060:Patient Satisfaction; D010512:Periodontal Index; D011446:Prospective Studies; D011788:Quality of Life; D011859:Radiography; D018714:Radiotherapy, Adjuvant; D016019:Survival Analysis; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants
keywords: dental implants; edentulous; head and neck cancer; patients’ satisfaction; prosthodontics; quality of life